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10. Infrastructure
The infrastructure information contained in this section is based upon data collected by the FCC as part of its price- cap monitoring procedures. 1 This summary is intended to highlight
changes in the use of technology in the local telephone company plant. The data (ARMIS 43- 07 reports 2 ) upon which this infrastructure summary is based are due April 1 for the previous
calendar year. This infrastructure section includes data through calendar year 2004. 3 The most recent data were due April 1, 2005. Revisions are only included in this section if they are filed
early enough for inclusion; however, this section contains many revisions to historical data filed subsequent to cutoff dates for last year’s summary.
Background
The data items presented here summarize ARMIS Report 43- 07, which is filed by local exchange carriers subject to mandatory price- cap regulation. The information contained in this
section is for the years 1994 through 2004. Recent changes to our infrastructure data collection process are reflected beginning with filed data for calendar year 2003. A number of items were
eliminated from reporting requirements and historical information for these items is no longer shown in this section. 4 Most of the eliminated items relate to switching technologies that have
1 Policy and Rules Concerning Rates For Dominant Carriers, CC Docket No. 87- 313, Second Report and Order, 5 FCC Rcd 6786 (1990) (LEC Price Cap Order), Erratum, 5 FCC Rcd
7664 (Com. Car. Bur. 1990); Policy and Rules Concerning Rates For Dominant Carriers, CC Docket No. 87- 313, Memorandum Opinion and Order, 8 FCC Rcd 7474 (Com. Car. Bur. 1993)
(Service Quality Modifications Order).
2 ARMIS, an acronym for Automated Reporting Management Information System, is a publicly available repository of financial, plant, demand, and quality- of- service data.
Additional infrastructure data are contained in the ARMIS 43- 08 report. See Statistics of Communications Common Carriers, published annually by the Wireline Competition
Bureau’s Industry Analysis and Technology Division for a compilation of ARMIS 43- 08 infrastructure data.
3 See Infrastructure of the Local Operating Companies Aggregated to the Holding Company Level, released April 24, 1995 for data for the years 1989 and 1990. Some of
the data for those early years are not a part of this summary and may contain discrepancies that make the early data inconsistent with that of later years. Reports
containing data for the early years can be found in the infrastructure section of the Wireline Competition Bureau Statistical Reports Internet site at www. fcc. gov/ wcb/ stats
under the file names INFRA99. ZIP, INFRA98. ZIP, INFRA95. ZIP, and INFRA93. ZIP. More recent reports can be found in Section 10 of earlier versions of this report on the
same web page under the section covering the Commission’s Federal- State Joint Board Monitoring Reports.
4 Historical information for the entries that are no longer reported can be found in Monitoring Reports released prior to 2003 and in the reports noted in footnote 3.
1
10 - 2
become obsolete or reflect virtually complete deployment of capabilities such as touch- tone capability. New data are being collected on hybrid copper/ fiber interfaces in the network but
most of the carriers have requested proprietary treatment for the data. As a result, the data are not provided in this section.
The ARMIS 43- 07 reports are filed only by those local exchange companies originally subject to mandatory price- cap regulation-- the Bell operating companies (BOCs). 5 Together,
these large companies are estimated to serve about 90% of all incumbents’ access lines nationwide. The data are generally filed at the study area level, which typically consists of a
company's operations within a state. The state- by- state data are available from the Commission's ARMIS web page at . 6 This web page has been redesigned and
provides more features than were previously available. The information summarized in this section is organized into two sets of tables with the following designations: Table 10.1 shows
switching system data and gross plant expenditures covering all types of plant. Table 10.2 shows transmission system data. Each set of tables contains segments for each of the regional Bell
operating companies (along with Verizon’s GTE companies shown separately) with aggregated summary data for all the reporting companies. The data summarized for each holding company
reflect the aggregate of data filed for individual states or study areas and should be useful in assessing overall trends. In some cases, refiled data may cause values to differ from prior
summary reports. Recent data reflect mergers of GTE and Bell Atlantic, which are now under the name Verizon Communications, and the acquisitions by SBC of Ameritech, Pacific Telesis,
and Southern New England Telephone.
Description of the Technologies and Analysis of the Data
The data in the attached tables provide an historical series for a variety of plant elements that illustrate the deployment of technology in the networks of the major local exchange
carriers. 7 The data items provide a picture of the well established technologies in use. This section highlights key trends in the evolution of basic telecommunications infrastructure and
illustrates the replacement of older technologies with newer ones. In some cases, older
5 See footnote 1.
6 To access ARMIS data from click on the words “download ARMIS data” and select the desired report, table and row( s).” To access data instructions
and definitions applicable to the 43- 07 report click on the words “ARMIS site map” at the top of the second screen and then select the 43- 07 report and table desired.
7 A number of irregularities including time series anomalies have been noted in the data. The companies are typically notified of these observed problems and either file revisions
or explanations. Revisions are initially made available on the ARMIS database website noted above.
2
10 - 3
technologies either no longer exist or are in very limited use. This section reflects recent revisions to the ARMIS 43- 07 report from which the data in this summary are obtained. 8
ARMIS data currently collected only cover circuit switches that provide a dedicated path through the network for the duration of a call, not routers or switches that are used to handle
Internet traffic or in connection with frame relay and ATM services that are specifically designed to handle data packets. 9 Almost all of the major local exchange carrier switches are digital.
More than 40 percent of these are ISDN capable. However, the rate at which new ISDN switching capability is being added to the network has slowed considerably, in recent years with
136 additional ISDN capable switches being reported in 2004. In 2004, the reported number of equipped ISDN Primary Rate Interfaces increased about 2 percent, from 556,226 to 567,255 and
ISDN basic rate interfaces also increased about 2%. 10
A number of transmission elements are included in Table 10.2. Definitions for these elements can be found on the Commissions ARMIS website noted above. These illustrate the
rapid development of fiber capacity in terms of terminations, sheath kilometers, and links. The number of sheath kilometers of fiber more than doubled over the decade 1994- 2004, with about
42,000 new fiber sheath kilometers being reported in 2004. During the same period, the number of sheath kilometers of copper remained steady at somewhat over 5 million, and other sheath
data, in relative terms, were not significant.
Table 10.2 also highlights the relative magnitude of equipped and working channels. Copper working channels have declined in 2004, while fiber working channels increased. Total
interoffice circuit links have also declined from last year. Although circuits connecting local central offices could typically be provided on only two fibers, the economics of fiber deployment
have resulted in deployments of typical fiber cables containing more than 40 fibers. This suggests that there is a significant amount of fiber capacity currently unused in the interoffice
transmission plant. 11
8 2000 Biennial Regulatory Review – Comprehensive Review of the Accounting Requirements and ARMIS Reporting Requirements for Incumbent Local Exchange
Carriers: Phase 2; Amendments to the Uniform System of Accounts for Interconnection; Jurisdictional Separations Reform and Referral to the Federal- State Joint Board; and
Local Competition and Broadband Reporting, CC Docket Nos. 00- 199, 99- 301, 97- 212, 80- 286, Report and Order in CC Docket Nos. 00- 199, 97- 212, and 80- 286, Further
Notice of Proposed Rulemaking in CC Docket Nos. 00- 199, 99- 301, and 80- 286, 16 FCC Rcd 19911 (2001), recon pending (Phase 2 Report and Order).
9 Remote switches as defined in this report only cover those switches capable of functioning if the host switch fails.
10 Table 10.1 includes the number of switch terminations that are available for ISDN and ISDN capable lines. Table 10.2 includes the number of copper loops that are capable of
supporting ISDN.
11 A large portion of the cost of fiber deployment is associated with labor and installation
3
10 - 4
Although the historical level of growth in fiber has been high, its use in the local loop at present appears to be relatively small. The reporting companies included in this section had an
installed base of about 241 million copper- pair mainframe terminations in their central offices for local loop use in 2004. In comparison, about 2.8 million fiber loop central office
terminations had been installed by end- of- year 2004. The data show that the number of these terminations increased by about 4% during 2004. In 2004 DS- 3 terminations on fiber facilities
grew by about 12%. Fiber and hybrid copper/ fiber systems are becoming increasingly important in the local loop as the number of high- quality copper pairs available to support higher data rate
digital services declines.
As noted earlier, the data presented in this section do not include data associated with hybrid fiber/ copper interfaces including information on offerings of xDSL services for which the
companies requested proprietary treatment. 12 Readers interested in more disaggregated information may wish to examine data at a more localized level than presented here. 13
rather than with the cable itself. Thus, the incremental cost of installing a larger fiber cable is typically relatively small. This suggests that the sheath- kilometer parameter
shown in the attached tables may be a better measure of fiber coverage than fiber kilometers. In general, care should be exercised in interpreting aggregate fiber data when
determining, for example, whether fiber is concentrated in certain parts of a company's service area with relatively little fiber elsewhere. See Fiber Deployment Update - End of
Year 1998, released Sept. 9, 1999: : FIBER98. ZIP (authored by J. Kraushaar, Industry Analysis and Technology Division, Wireline
Competition Bureau, Federal Communications Commission).
12 xDSL (Digital Subscriber Loop) services that are now available offer broadband digital capability using special terminal equipment that enhances the capability of existing
copper access lines.
13 Individual study- area data are also available to address more localized issues. This information is available from the ARMIS web page at .
4
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Local
Switches
15,073
15,556
16,267
16,099
16,117
16,261
14,841
14,837
14,051
14,053
14,064
Tandems
442
458
484
481
493
492
504
517
526
544
568
Hosts
2,186
2,310
2,432
2,519
2,471
2,461
2,401
2,338
2,274
2,169
2,156
Remotes
(Stand
Alone
Only)
6,451
6,902
7,098
7,122
7,977
8,103
7,406
7,412
7,383
7,382
7,312
Total
Switches
15,251
15,740
16,486
16,363
16,392
16,516
15,092
15,109
14,353
14,376
14,399
Analog
Stored
Program
Control
1,179
1,002
735
509
431
314
203
139
107
84
73
Digital
Stored
Program
Control
13,138
14,055
15,356
15,686
15,961
16,202
14,889
14,970
14,245
14,292
14,326
Total
Number
Access
Lines
in
Service
(000)
132,421
138,144
143,239
151,167
155,530
159,364
160,557
155,543
148,292
142,698
136,057
Analog
Stored
Program
Control
Lines
Served
33,699
29,409
24,803
19,883
16,688
11,713
7,317
4,810
3,283
2,436
1,981
Digital
Stored
Program
Control
Lines
Served
97,859
108,170
118,149
131,127
138,842
147,651
153,240
150,732
145,009
140,262
134,076
Total
Switches
Equipped
w/ SS7-
394
(InterLATA)
Svc.
10,195
11,742
13,171
13,813
15,148
15,994
14,822
14,954
14,258
14,342
14,366
Total
Switches
Equipped
with
ISDN
2,668
3,256
3,852
4,759
5,392
5,735
5,414
5,465
5,664
5,651
5,787
Lines
with
Access
to
ISDN
(000)
61,518
77,492
95,113
109,817
121,408
127,357
132,886
129,075
124,451
119,422
115,561
Basic
Rate
ISDN
(BRI)
Interfaces
Equipped
800,964
1,038,902
1,507,551
2,224,772
2,491,509
2,720,871
2,815,671
3,097,905
2,860,453
2,590,905
2,637,353
Primary
Rate
ISDN
(PRI)
Interfaces
Equipped
15,526
32,580
67,885
164,294
234,515
334,910
521,503
720,590
753,491
556,226
567,255
Source:
ARMIS
Report
43- 07.
Table
10.1
Switching
Data
Total
-
All
Companies 10 - 5
5
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Local
Switches
1,658
1,647
1,650
1,654
1,653
1,649
1,644
1,642
1,637
1,629
1,625
Tandems
70
71
70
70
71
71
73
77
77
78
79
Hosts
280
289
297
317
307
306
297
304
305
295
295
Remotes
(Stand
Alone
Only)
732
742
747
766
765
765
776
819
829
877
811
Total
Switches
1,677
1,668
1,670
1,674
1,673
1,668
1,665
1,665
1,664
1,658
1,653
Analog
Stored
Program
Control
182
158
130
106
100
83
69
54
44
41
39
Digital
Stored
Program
Control
1,495
1,510
1,540
1,568
1,573
1,585
1,596
1,611
1,620
1,617
1,614
Total
Number
Access
Lines
in
Service
(000)
20,141
21,064
22,019
23,080
23,909
24,458
24,558
23,756
22,955
22,206
21,317
Analog
Stored
Program
Control
Lines
Served
4,837
4,455
4,020
3,746
3,536
2,972
2,362
1,729
1,309
1,154
1,030
Digital
Stored
Program
Control
Lines
Served
15,304
16,609
17,999
19,334
20,373
21,486
22,197
22,027
21,646
21,052
20,287
Total
Switches
Equipped
w/ SS7-
394
(InterLATA)
Svc.
1,627
1,629
1,652
1,674
1,673
1,668
1,665
1,665
1,664
1,658
1,653
Total
Switches
Equipped
with
ISDN
407
467
518
584
596
645
691
678
697
701
809
Lines
with
Access
to
ISDN
(000)
9,708
10,988
12,948
14,894
15,980
17,413
18,396
17,660
17,457
16,927
17,536
Basic
Rate
ISDN
(BRI)
Interfaces
Equipped
76,348
80,641
122,043
167,512
183,458
202,391
223,294
228,898
230,066
269,254
281,088
Primary
Rate
ISDN
(PRI)
Interfaces
Equipped
3,534
4,803
9,154
21,389
33,564
51,669
72,347
85,983
81,328
81,682
86,399
Source:
ARMIS
Report
43- 07.
Table
10.1
Switching
Data
BellSouth
Companies 10 - 6
6
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Local
Switches
1,738
1,641
1,521
1,441
1,446
1,428
1,400
1,354
1,337
1,322
1,323
Tandems
51
51
51
51
51
51
53
51
56
56
56
Hosts
232
238
248
249
253
251
245
231
226
217
219
Remotes
(Stand
Alone
Only)
984
961
852
781
786
752
733
680
651
631
630
Total
Switches
1,752
1,654
1,534
1,492
1,458
1,441
1,414
1,363
1,351
1,336
1,337
Analog
Stored
Program
Control
213
188
146
113
95
71
20
1
1
0
0
Digital
Stored
Program
Control
1,519
1,465
1,387
1,379
1,363
1,370
1,394
1,362
1,350
1,336
1,337
Total
Number
Access
Lines
in
Service
(000)
14,309
14,817
15,405
16,132
16,859
17,449
17,626
16,664
15,682
14,277
13,425
Analog
Stored
Program
Control
Lines
Served
5,303
4,706
4,245
4,228
3,574
2,501
636
30
28
0
0
Digital
Stored
Program
Control
Lines
Served
8,988
10,110
11,159
11,905
13,286
14,948
16,991
16,634
15,654
14,277
13,425
Total
Switches
Equipped
w/ SS7-
394
(InterLATA)
Svc.
819
1,116
1,143
1,305
1,346
1,350
1,340
1,311
1,311
1,312
1,315
Total
Switches
Equipped
with
ISDN
240
262
327
541
557
583
623
603
587
635
638
Lines
with
Access
to
ISDN
(000)
5,045
6,192
9,668
10,264
11,189
12,522
14,611
14,082
13,153
12,575
11,806
Basic
Rate
ISDN
(BRI)
Interfaces
Equipped
120,058
126,530
146,570
162,953
165,733
167,623
176,696
174,079
199,302
201,232
195,674
Primary
Rate
ISDN
(PRI)
Interfaces
Equipped
742
2,315
2,734
4,329
4,867
6,112
7,822
11,046
61,993
65,672
67,908
Source:
ARMIS
Report
43- 07.
Table
10.1
Switching
Data
Qwest
Companies 10 - 7
7
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Local
Switches
1,413
1,415
1,410
1,435
1,419
1,432
1,447
1,451
1,455
1,439
1,436
Tandems
47
46
46
47
51
52
53
55
63
65
87
Hosts
236
238
236
243
236
234
234
235
236
236
236
Remotes
(Stand
Alone
Only)
717
731
743
769
764
775
790
789
790
776
779
Total
Switches
1,460
1,461
1,456
1,482
1,470
1,485
1,500
1,506
1,518
1,504
1,523
Analog
Stored
Program
Control
119
97
71
58
46
39
37
34
24
16
8
Digital
Stored
Program
Control
1,341
1,364
1,385
1,424
1,424
1,446
1,463
1,472
1,494
1,488
1,515
Total
Number
Access
Lines
in
Service
(000)
18,122
19,310
19,553
20,335
20,790
21,036
20,898
20,074
19,151
18,309
17,287
Analog
Stored
Program
Control
Lines
Served
3,845
3,727
3,228
2,793
2,193
1,811
1,730
1,491
927
562
276
Digital
Stored
Program
Control
Lines
Served
14,278
15,583
16,324
17,541
18,597
19,225
19,168
18,583
18,224
17,747
17,011
Total
Switches
Equipped
w/ SS7-
394
(InterLATA)
Svc.
1,254
1,400
1,438
1,463
1,451
1,476
1,492
1,496
1,504
1,504
1,523
Total
Switches
Equipped
with
ISDN
444
489
601
695
784
816
822
844
933
863
883
Lines
with
Access
to
ISDN
(000)
10,259
12,860
13,802
15,464
16,804
17,472
17,388
16,814
16,810
16,160
15,531
Basic
Rate
ISDN
(BRI)
Interfaces
Equipped
87,862
97,550
226,355
180,280
220,867
259,312
271,468
283,600
290,367
282,643
282,159
Primary
Rate
ISDN
(PRI)
Interfaces
Equipped
1,505
1,677
4,247
14,569
24,800
38,037
53,926
70,542
75,184
75,766
79,519
Source:
ARMIS
Report
43- 07.
Table
10.1
Switching
Data
SBC
Ameritech
Companies 10 - 8
8
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Local
Switches
837
840
833
810
801
799
778
781
779
779
778
Tandems
20
20
20
21
24
24
24
31
31
31
35
Hosts
121
117
114
135
121
116
189
114
114
116
116
Remotes
(Stand
Alone
Only)
320
316
310
364
361
350
361
360
358
359
357
Total
Switches
857
860
853
830
824
822
802
812
810
807
813
Analog
Stored
Program
Control
109
87
72
49
38
17
0
0
0
0
0
Digital
Stored
Program
Control
746
772
781
781
786
805
802
812
810
807
813
Total
Number
Access
Lines
in
Service
(000)
15,417
16,021
16,460
17,155
18,158
18,285
18,236
17,788
17,248
16,693
16,156
Analog
Stored
Program
Control
Lines
Served
5,029
4,036
3,354
2,422
1,825
754
0
0
0
0
0
Digital
Stored
Program
Control
Lines
Served
10,387
11,985
13,106
14,733
16,333
17,531
18,236
17,788
17,248
16,693
16,156
Total
Switches
Equipped
w/ SS7-
394
(InterLATA)
Svc.
764
772
794
791
803
796
778
812
810
807
813
Total
Switches
Equipped
with
ISDN
347
417
473
531
551
574
574
562
560
588
592
Lines
with
Access
to
ISDN
(000)
8,494
10,291
11,895
13,632
15,134
16,529
17,589
16,966
16,427
16,251
15,759
Basic
Rate
ISDN
(BRI)
Interfaces
Equipped
115,146
171,305
304,182
314,003
468,493
489,369
421,744
630,816
615,934
347,052
339,563
Primary
Rate
ISDN
(PRI)
Interfaces
Equipped
708
3,491
13,448
20,125
31,345
47,794
49,712
94,742
54,902
34,378
34,926
Source:
ARMIS
Report
43- 07.
Table
10.1
Switching
Data
SBC
Pacific
Telesis
Companies 10 - 9
9
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Local
Switches
139
137
136
161
161
Tandems
6
1
6
7
7
Hosts
79
81
32
30
30
Remotes
(Stand
Alone
Only)
71
56
73
82
82
Total
Switches
139
137
136
165
168
Analog
Stored
Program
Control
3
0
0
0
0
Digital
Stored
Program
Control
136
137
136
165
168
Total
Number
Access
Lines
in
Service
(000)
2,450
2,334
2,258
2,173
2,069
Analog
Stored
Program
Control
Lines
Served
125
0
0
0
0
Digital
Stored
Program
Control
Lines
Served
2,325
2,334
2,258
2,173
2,069
Total
Switches
Equipped
w/ SS7-
394
(InterLATA)
Svc.
141
137
136
165
168
Total
Switches
Equipped
with
ISDN
74
101
137
103
107
Lines
with
Access
to
ISDN
(000)
1,845
2,031
2,030
1,870
1,776
Basic
Rate
ISDN
(BRI)
Interfaces
Equipped
40,569
38,423
43,254
51,076
51,138
Primary
Rate
ISDN
(PRI)
Interfaces
Equipped
92,208
169,488
192,720
8,465
8,413
Source:
ARMIS
Report
43- 07.
Table
10.1
Switching
Data
SBC
Southern
New
England 10 - 10
10
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Local
Switches
1,511
1,644
1,670
1,690
1,644
1,658
1,663
1,660
1,652
1,658
1,654
Tandems
60
60
60
60
67
56
69
70
70
71
68
Hosts
233
245
241
267
230
228
229
230
244
245
246
Remotes
(Stand
Alone
Only)
779
935
1,077
1,077
1,158
1,163
1,152
1,150
1,150
1,101
1,093
Total
Switches
1,539
1,679
1,730
1,750
1,711
1,727
1,715
1,716
1,722
1,728
1,722
Analog
Stored
Program
Control
264
252
162
136
115
88
67
46
34
23
23
Digital
Stored
Program
Control
1,202
1,369
1,568
1,614
1,596
1,639
1,648
1,670
1,688
1,705
1,699
Total
Number
Access
Lines
in
Service
(000)
13,611
14,095
14,104
15,306
15,872
16,287
16,411
15,842
15,294
14,670
13,912
Analog
Stored
Program
Control
Lines
Served
6,608
6,531
5,657
5,055
4,119
3,107
2,246
1,448
963
652
615
Digital
Stored
Program
Control
Lines
Served
6,907
7,502
8,447
10,251
11,753
13,180
14,165
14,394
14,331
14,018
13,297
Total
Switches
Equipped
w/ SS7-
394
(InterLATA)
Svc.
1,263
1,466
1,597
1,724
1,707
1,724
1,713
1,713
1,722
1,728
1,722
Total
Switches
Equipped
with
ISDN
123
303
331
331
360
428
441
461
472
479
498
Lines
with
Access
to
ISDN
(000)
1,933
8,826
9,440
10,577
13,361
12,158
12,169
12,056
11,241
10,721
10,069
Basic
Rate
ISDN
(BRI)
Interfaces
Equipped
57,041
108,784
104,604
185,018
225,427
267,190
281,459
310,326
308,501
309,907
309,172
Primary
Rate
ISDN
(PRI)
Interfaces
Equipped
1,238
5,084
6,150
15,434
31,570
46,533
59,513
68,236
68,793
71,035
70,860
Source:
ARMIS
Report
43- 07.
Table
10.1
Switching
Data
SBC
Southwestern
Bell
Companies 10 - 11
11
1994
1995
1996
1998
1998
1999
2000
2001
2002
2003
2004
Local
Switches
2,705
2,696
2,684
2,616
2,616
2,636
2,634
2,622
2,623
2,628
2,639
Tandems
65
65
71
67
67
74
76
81
87
102
101
Hosts
358
371
367
369
369
381
386
382
464
375
371
Remotes
(Stand
Alone
Only)
1,407
1,424
1,444
1,405
1,405
1,437
1,435
1,424
1,424
1,441
1,445
Total
Switches
2,738
2,729
2,723
2,652
2,652
2,682
2,683
2,675
2,682
2,705
2,702
Analog
Stored
Program
Control
246
194
137
37
37
16
7
4
4
4
3
Digital
Stored
Program
Control
2,492
2,535
2,586
2,615
2,615
2,666
2,676
2,671
2,677
2,701
2,699
Total
Number
Access
Lines
in
Service
(000)
35,745
36,959
38,305
40,838
40,838
41,833
41,669
40,582
38,810
38,003
36,105
Analog
Stored
Program
Control
Lines
Served
7,569
5,576
4,057
1,442
1,442
568
218
112
55
67
60
Digital
Stored
Program
Control
Lines
Served
28,176
31,383
34,248
39,396
39,396
41,266
41,451
40,469
38,754
37,936
36,045
Total
Switches
Equipped
w/ SS7-
394
(InterLATA)
Svc.
2,381
2,577
2,650
2,641
2,641
2,671
2,672
2,664
2,682
2,704
2,700
Total
Switches
Equipped
with
ISDN
839
930
1,079
1,298
1,298
1,304
1,305
1,303
1,328
1,308
1,289
Lines
with
Access
to
ISDN
(000)
21,107
22,117
27,682
34,367
34,367
36,336
36,825
35,636
34,012
32,010
30,667
Basic
Rate
ISDN
(BRI)
Interfaces
Equipped
282,051
363,320
505,652
1,088,060
1,088,060
1,167,022
1,226,934
1,258,543
1,003,709
966,634
1,015,554
Primary
Rate
ISDN
(PRI)
Interfaces
Equipped
6,393
12,507
24,775
71,983
71,983
97,177
123,323
150,029
149,282
151,276
149,131
Source:
ARMIS
Report
43- 07.
Table
10.1
Switching
Data
Verizon
-
Bell
Atlantic
Companies 10 - 12
12
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Local
Switches
5,211
5,673
6,499
6,453
6,538
6,659
5,136
5,190
4,432
4,437
4,448
Tandems
129
145
166
165
162
164
150
151
136
134
135
Hosts
726
812
929
939
955
945
742
761
653
655
643
Remotes
(Stand
Alone
Only)
1,512
1,793
1,925
1,960
2,738
2,861
2,088
2,134
2,108
2,115
2,115
Total
Switches
5,228
5,689
6,520
6,483
6,604
6,691
5,174
5,235
4,470
4,473
4,481
Analog
Stored
Program
Control
46
26
17
10
0
0
0
0
0
0
0
Digital
Stored
Program
Control
4,343
5,040
6,109
6,305
6,604
6,691
5,174
5,235
4,470
4,473
4,481
Total
Number
Access
Lines
in
Service
(000)
15,076
15,878
17,393
18,321
19,105
20,015
18,709
18,503
16,894
16,366
15,785
Analog
Stored
Program
Control
Lines
Served
508
378
242
197
0
0
0
0
0
0
0
Digital
Stored
Program
Control
Lines
Served
13,819
14,998
16,866
17,966
19,105
20,015
18,709
18,503
16,894
16,366
15,785
Total
Switches
Equipped
w/ SS7-
394
(InterLATA)
Svc.
2,087
2,782
3,897
4,215
5,527
6,309
5,021
5,156
4,429
4,464
4,472
Total
Switches
Equipped
with
ISDN
268
388
523
779
1,246
1,385
884
913
950
974
971
Lines
with
Access
to
ISDN
(000)
4,972
6,218
9,678
10,619
14,574
14,926
14,064
13,830
13,320
12,908
12,418
Basic
Rate
ISDN
(BRI)
Interfaces
Equipped
62,458
90,772
98,145
126,946
139,471
167,964
173,507
173,220
169,320
163,107
163,005
Primary
Rate
ISDN
(PRI)
Interfaces
Equipped
1,406
2,703
7,377
16,465
36,386
47,588
62,652
70,524
69,289
67,952
70,099
Source:
ARMIS
Report
43- 07.
Table
10.1
Switching
Data
Verizon
-
GTE
Companies 10 - 13
13
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Sheath
Kilometers: Total Sheath Kilometers
5,396,684
5,440,947
5,581,057
5,664,315
5,763,419
5,846,319
5,761,869
5,848,516
5,791,105
5,851,790
5,942,045
Copper
5,029,164
5,028,941
5,125,753
5,163,039
5,212,873
5,255,778
5,132,364
5,166,537
5,086,669
5,118,314
5,166,481
Fiber
359,887
404,891
448,098
495,380
536,520
576,868
613,646
665,805
692,031
720,877
763,132
Other
7,633
7,116
7,207
5,896
14,026
13,672
15,860
16,174
12,406
12,600
12,433
Interoffice
Working
Facilities:
Total
Circuit
Links
23,148,333
25,297,979
24,244,165
28,847,081
32,231,481
41,879,877
48,661,944
52,923,180
52,949,635
52,112,866
50,950,4
80
Loop
Plant
--
Central
Office
Terminations:
Total
Equipped
Channels
249,649,715
258,253,080
268,251,039
264,429,362
291,636,650
316,611,286
334,896,812
358,698,149
312,233,882
297,583,679
300,300,134
Copper
220,135,875
225,175,050
227,713,136
230,903,175
239,252,059
242,631,789
248,907,611
252,260,939
244,927,670
238,212,199
234,120,897
Fiber
Digital
Carrier
29,507,696
33,071,868
40,533,114
33,515,370
52,379,288
73,974,959
85,985,244
106,433,399
67,303,642
59,370,412
66,17
9,010
Other
6,144
6,162
4,789
10,817
5,303
4,538
3,957
3,811
2,570
1,068
227
Total
Working
Channels
147,195,693
152,380,602
161,508,833
170,083,120
194,840,965
207,743,891
218,927,639
227,878,106
169,157,091
155,97
8,400
148,255,276
Copper
135,381,925
139,111,176
144,505,778
147,286,389
154,355,633
154,646,229
157,839,973
152,364,455
137,228,369
127,261,709
117,320,498
Fiber
Digital
Carrier
11,810,830
13,266,569
17,000,345
22,793,636
40,483,024
52,850,716
61,085,767
75,512,132
31,927,283
28,716,169
30,934
,695
Other
2,940
2,857
2,710
3,095
2,308
246,946
1,899
1,519
1,439
522
83
Other
Transmission
Facility
Data:
Copper
Pairs
Term
Main
Frame
(Loop
Plant
Only)
208,473,679
211,518,359
213,009,375
215,534,261
218,990,613
218,470,177
221,252,639
238,
862,029
242,252,929
242,520,915
240,835,374
Fiber
Strands
Term
in
the
CO
(Loop
Plant
Only)
650,573
1,102,517
1,365,991
1,651,999
1,946,608
2,005,074
2,350,285
2,744,584
3,098,223
2,
705,122
2,819,962
Fiber
Term
at
Customer
Premises
DS1
Rate
163,017
206,572
269,767
363,189
506,572
629,237
876,058
1,290,658
1,325,187
1,710,437
1,837,473
Fiber
Term
at
Customer
Premises
DS3
Rate
&
Higher
16,139
18,773
31,304
29,893
56,208
105,420
190,106
232,430
212,277
265,280
296,659
ISDN
Capable
Lines
NA
NA
NA
105,949,659
107,514,215
123,018,845
117,157,253
105,443,488
106,355,653
96,011,618
86,074,376
NA:
Not
available
Source:
ARMIS
Report
43- 07.
Table
10.2
Transmission
System
Data
Total
-
All
Companies 10 - 14
14
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Sheath
Kilometers: Total Sheath Kilometers
1,005,397
1,020,809
1,034,601
1,050,186
1,074,896
1,094,569
1,115,897
1,134,363
1,145,506
1,155,144
1,170,351
Copper
930,812
937,626
943,090
951,758
965,108
973,995
983,221
989,541
992,446
994,980
1,000,413
Fiber
73,370
82,012
90,093
96,852
105,335
116,507
129,209
141,356
149,609
156,707
166,476
Other
1,215
1,171
1,418
1,576
4,453
4,067
3,466
3,466
3,452
3,457
3,462
Interoffice
Working
Facilities:
Total
Circuit
Links
4,287,654
4,756,430
5,245,925
6,107,816
6,134,728
8,564,658
9,828,726
10,690,256
10,835,682
10,539,995
10,306,408
Loop
Plant
--
Central
Office
Terminations:
Total
Equipped
Channels
34,669,704
36,022,283
37,866,890
39,550,588
40,957,871
42,025,575
38,493,186
39,191,848
39,822,163
39,957,594
40,455,852
Copper
29,995,720
30,351,794
30,903,216
31,270,774
31,917,878
31,849,537
31,600,665
31,708,156
30,263,142
30,684,759
29,089,610
Fiber
Digital
Carrier
4,673,140
5,669,647
6,962,832
8,278,972
9,039,151
10,175,104
6,891,115
7,481,596
9,557,876
9,272,835
11,366,242
Other
842
842
842
842
842
934
1,406
2,096
1,145
0
0
Total
Working
Channels
23,284,636
24,682,894
26,230,400
27,921,162
29,836,968
30,422,706
26,262,694
25,989,359
25,039,974
24,334,185
23,42
6,354
Copper
19,283,574
19,871,262
20,318,019
20,708,890
21,233,672
21,237,643
20,311,329
19,664,164
17,250,216
16,854,022
14,456,834
Fiber
Digital
Carrier
4,000,986
4,811,550
5,912,292
7,212,190
8,603,214
9,184,935
5,950,949
6,324,563
7,789,007
7,480,163
8,969,520
Other
77
82
89
82
82
128
416
632
751
0
0
Other
Transmission
Facility
Data:
Copper
Pairs
Term
Main
Frame
(Loop
Plant
Only)
26,451,200
26,527,293
26,342,776
26,703,438
27,082,625
26,602,864
31,771,617
48,789,643
4
9,853,210
51,027,738
52,265,386
Fiber
Strands
Term
in
the
CO
(Loop
Plant
Only)
73,260
106,710
138,364
157,957
185,416
205,840
226,360
248,433
310,092
322,590
351,606
Fiber
Term
at
Customer
Premises
DS1
Rate
13,941
19,132
27,482
36,911
50,431
67,886
85,205
93,687
593,755
448,233
474,787
Fiber
Term
at
Customer
Premises
DS3
Rate
&
Higher
4,034
4,559
5,353
6,847
8,974
35,492
94,022
107,998
112,931
121,680
129,894
ISDN
Capable
Lines
NA
NA
NA
25,918,582
15,841,265
13,049,642
13,111,821
12,636,844
16,230,309
16,065,806
15,764,831
NA:
Not
available
Source:
ARMIS
Report
43- 07.
Table
10.2
Transmission
System
Data
BellSouth
Companies 10 - 15
15
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Sheath
Kilometers: Total Sheath Kilometers
750,756
753,942
722,753
717,084
722,157
735,920
754,162
762,412
770,660
779,623
789,965
Copper
694,797
691,844
660,393
653,205
650,929
662,816
675,009
676,615
684,193
690,414
698,213
Fiber
55,960
62,098
62,360
63,880
65,171
66,986
69,906
76,585
80,891
83,638
86,182
Other
0
0
0
06,057
6,119
9,247
9,212
5,576
5,570
5,570
Interoffice
Working
Facilities:
Total
Circuit
Links
2,569,216
2,802,203
3,178,552
3,561,748
4,129,315
5,232,282
6,152,970
6,926,823
7,018,987
6,746,390
6,521,359
Loop
Plant
--
Central
Office
Terminations:
Total
Equipped
Channels
24,088,839
24,246,870
25,284,411
24,893,900
27,316,968
28,023,288
28,733,473
29,643,140
30,106,628
30,149,357
30,250,683
Copper
23,393,955
23,561,093
23,500,796
23,193,518
25,517,759
25,361,821
25,581,184
25,939,651
26,077,832
25,727,523
25,542,477
Fiber
Digital
Carrier
694,588
685,674
1,782,962
1,699,888
1,799,003
2,661,211
3,152,009
3,703,244
4,028,568
4,421,607
4,707,979
Other
296
103
653
494
206
256
280
245
228
227
227
Total
Working
Channels
15,322,355
15,347,150
16,359,345
17,195,446
17,455,809
18,011,061
18,009,155
17,058,921
16,260,389
15,607,156
15,03
8,312
Copper
14,863,489
14,873,448
15,232,212
16,113,600
16,222,185
16,270,241
15,887,131
14,607,962
14,400,788
13,625,667
12,996,038
Fiber
Digital
Carrier
458,790
473,650
1,126,650
1,081,695
1,233,523
1,740,715
2,121,920
2,450,864
1,859,511
1,981,407
2,042,191
Other
76
52
483
151
101
105
104
95
90
82
83
Other
Transmission
Facility
Data:
Copper
Pairs
Term
Main
Frame
(Loop
Plant
Only)
22,179,411
22,168,426
22,291,697
20,463,591
21,558,602
21,606,866
21,572,942
21,653,395
2
1,724,140
22,858,456
22,907,836
Fiber
Strands
Term
in
the
CO
(Loop
Plant
Only)
83,313
81,953
112,185
123,691
174,430
202,329
238,802
299,315
309,154
316,793
322,781
Fiber
Term
at
Customer
Premises
DS1
Rate
24,386
28,875
30,109
46,296
91,105
136,878
267,251
316,665
349,948
370,416
390,835
Fiber
Term
at
Customer
Premises
DS3
Rate
&
Higher
1,297
1,289
1,223
1,142
6,085
28,354
38,224
51,546
60,366
63,678
66,830
ISDN
Capable
Lines
NA
NA
NA
9,236,841
9,650,185
9,983,398
9,922,088
9,012,052
8,426,381
7,591,314
7,191,782
NA:
Not
available
Source:
ARMIS
Report
43- 07.
Table
10.2
Transmission
System
Data
Qwest
Companies 10 - 16
16
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Sheath
Kilometers: Total Sheath Kilometers
537,133
562,934
575,407
586,712
598,858
601,779
612,988
629,321
636,725
642,674
652,737
Copper
498,239
519,775
526,955
533,491
541,197
540,170
546,336
555,024
558,670
562,163
570,185
Fiber
37,980
42,370
47,676
52,450
56,687
60,637
65,632
73,334
77,084
79,541
81,711
Other
915
789
776
771
974
972
1,020
964
971
970
842
Interoffice
Working
Facilities:
Total
Circuit
Links
2,964,296
3,278,058
3,577,253
4,118,183
4,912,927
5,990,907
6,753,643
7,625,684
8,084,023
7,633,513
7,372,538
Loop
Plant
--
Central
Office
Terminations:
Total
Equipped
Channels
31,847,802
31,957,236
33,365,840
34,740,814
36,301,862
37,842,246
39,092,223
40,436,388
42,145,712
38,326,987
38,922,520
Copper
29,482,850
29,124,886
29,571,017
29,797,059
30,063,619
30,255,769
30,775,153
30,444,126
30,690,174
34,469,562
34,918,499
Fiber
Digital
Carrier
2,364,952
2,832,350
3,794,823
4,943,755
6,238,243
7,586,477
8,317,070
9,992,262
11,455,538
3,857,425
4,004,021
Other
0
0
0
0
0
0
0
0
00
0
Total
Working
Channels
19,105,653
19,714,345
20,506,219
21,152,075
21,782,557
22,227,572
22,495,633
21,786,411
20,997,868
20,239,795
19,29
1,809
Copper
18,096,153
18,478,770
18,896,376
19,082,995
19,216,231
19,135,507
18,993,978
18,124,703
17,272,552
18,147,879
17,221,055
Fiber
Digital
Carrier
1,009,500
1,235,575
1,609,843
2,069,080
2,566,326
3,092,065
3,501,655
3,661,708
3,725,316
2,091,916
2,070,754
Other
0
0
0
0
0
0
0
0
00
0
Other
Transmission
Facility
Data:
Copper
Pairs
Term
Main
Frame
(Loop
Plant
Only)
28,645,733
28,217,638
28,693,470
28,970,660
29,303,138
29,605,539
30,212,004
29,938,625
3
0,208,945
30,632,552
30,761,065
Fiber
Strands
Term
in
the
CO
(Loop
Plant
Only)
66,035
79,661
103,648
123,302
141,621
165,171
205,342
275,069
300,927
248,340
265,087
Fiber
Term
at
Customer
Premises
DS1
Rate
26,660
31,941
39,124
46,366
53,506
62,090
78,822
106,984
118,927
318,417
345,032
Fiber
Term
at
Customer
Premises
DS3
Rate
&
Higher
2,755
3,192
3,874
4,453
5,145
5,788
7,188
9,583
10,810
26,849
35,916
ISDN
Capable
Lines
NA
NA
NA
9,339,241
9,476,166
9,499,034
9,469,137
9,054,353
8,618,397
8,050,722
7,567,384
NA:
Not
available
Source:
ARMIS
Report
43- 07.
Table
10.2
Transmission
System
Data
SBC
Ameritech
Companies 10 - 17
17
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Sheath
Kilometers: Total Sheath Kilometers
343,658
346,127
349,697
363,726
368,122
363,304
386,093
394,058
382,326
394,103
410,545
Copper
324,942
325,537
327,040
339,207
341,563
334,493
355,133
359,288
343,317
352,331
365,700
Fiber
17,598
19,472
21,513
23,375
25,416
27,648
29,797
33,227
37,466
40,279
43,342
Other
1,118
1,118
1,144
1,144
1,144
1,163
1,163
1,543
1,543
1,493
1,503
Interoffice
Working
Facilities:
Total
Circuit
Links
2,568,706
2,646,904
2,240,779
3,369,967
3,760,855
4,352,282
5,032,433
5,141,975
4,792,666
4,649,070
4,410,421
Loop
Plant
--
Central
Office
Terminations:
Total
Equipped
Channels
26,447,355
26,850,298
27,732,011
28,635,080
29,739,661
30,729,411
33,317,471
34,687,259
34,988,223
31,628,755
32,005,987
Copper
25,914,609
26,178,875
26,951,967
27,548,645
28,348,883
29,062,676
31,479,491
32,170,875
32,337,338
30,161,010
30,398,583
Fiber
Digital
Carrier
532,661
671,162
779,783
1,086,411
1,390,754
1,666,523
1,837,699
2,516,055
2,650,609
1,467,745
1,607,404
Other
85
261
261
24
24
212
281
329
276
0
0
Total
Working
Channels
16,110,206
16,877,850
17,719,765
18,254,128
20,103,518
20,963,786
23,081,376
22,773,561
22,080,915
17,868,331
17,31
1,070
Copper
15,758,760
16,448,199
17,212,991
17,569,012
19,235,044
19,936,233
21,930,468
21,380,638
20,803,417
17,070,393
16,430,928
Fiber
Digital
Carrier
351,364
429,536
506,657
685,092
868,450
1,027,425
1,150,752
1,392,728
1,277,338
797,938
880,142
Other
82
115
117
24
24
128
156
195
160
0
0
Other
Transmission
Facility
Data:
Copper
Pairs
Term
Main
Frame
(Loop
Plant
Only)
24,577,002
24,619,462
25,055,625
25,412,880
25,953,289
26,639,408
27,102,231
27,403,873
2
7,620,878
27,668,068
27,754,848
Fiber
Strands
Term
in
the
CO
(Loop
Plant
Only)
33,538
34,692
37,156
88,192
97,385
101,516
115,670
139,598
182,250
49,626
51,419
Fiber
Term
at
Customer
Premises
DS1
Rate
756
655
719
762
854
894
0
0
0
244,193
265,797
Fiber
Term
at
Customer
Premises
DS3
Rate
&
Higher
3,108
4,047
3,113
6,145
7,432
9,456
13,132
16,805
19,925
23,252
29,988
ISDN
Capable
Lines
NA
NA
NA
12,803,002
14,007,670
14,466,224
15,930,217
14,563,646
15,240,270
8,870,683
8,272,400
NA:
Not
available
Source:
ARMIS
Report
43- 07.
Table
10.2
Transmission
System
Data
SBC
Pacific
Telesis
Companies 10 - 18
18
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Sheath
Kilometers: Total Sheath Kilometers
78,301
78,634
79,230
77,061
77,869
Copper
68,830
68,582
68,786
66,119
66,717
Fiber
9,471
10,052
10,444
10,810
11,076
Other
0
0
0
132
76
Interoffice
Working
Facilities:
Total
Circuit
Links
700,958
701,243
720,401
843,381
781,235
Loop
Plant
--
Central
Office
Terminations:
Total
Equipped
Channels
4,303,654
4,719,268
4,627,977
4,747,002
4,841,846
Copper
3,810,896
3,991,935
4,018,081
4,009,459
4,042,100
Fiber
Digital
Carrier
492,758
727,333
609,896
737,543
799,746
Other
0
0
00
0
Total
Working
Channels
2,491,272
2,551,112
2,540,750
2,296,050
2,193,809
Copper
2,129,625
2,064,154
2,140,299
1,876,364
1,768,509
Fiber
Digital
Carrier
361,647
486,958
400,451
419,686
425,300
Other
0
0
00
0
Other
Transmission
Facility
Data:
Copper
Pairs
Term
Main
Frame
(Loop
Plant
Only)
3,810,896
4,108,736
3,892,983
3,860,982
3,869,497
Fiber
Strands
Term
in
the
CO
(Loop
Plant
Only)
40,777
60,062
89,466
24,006
26,986
Fiber
Term
at
Customer
Premises
DS1
Rate
0
0
67,790
33,818
31,586
Fiber
Term
at
Customer
Premises
DS3
Rate
&
Higher
0
0
0
6,182
4,092
ISDN
Capable
Lines
317,994
384,431
398,824
1,049,395
990,236
NA:
Not
available
Source:
ARMIS
Report
43- 07.
Table
10.2
Transmission
System
Data
SBC
Southern
New
England
Tel.
10
-
19
19
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Sheath
Kilometers: Total Sheath Kilometers
652,224
662,108
676,945
685,526
700,914
715,915
734,982
749,279
758,096
768,714
777,213
Copper
609,725
612,764
617,776
622,960
634,236
645,280
657,915
665,754
671,033
678,357
684,030
Fiber
40,621
47,530
57,228
60,561
66,074
70,023
76,442
82,893
86,431
89,725
92,549
Other
1,878
1,814
1,942
2,005
604
612
625
632
632
632
634
Interoffice
Working
Facilities:
Total
Circuit
Links
2,271,891
2,583,685
2,887,611
3,374,225
4,013,947
5,040,973
5,747,378
6,133,750
6,011,924
6,248,497
6,238,881
Loop
Plant
--
Central
Office
Terminations:
Total
Equipped
Channels
23,675,325
23,990,229
23,765,557
26,003,155
26,573,984
27,781,986
28,466,090
33,579,340
35,090,790
30,806,704
31,676,407
Copper
22,010,813
23,356,682
22,976,132
24,957,200
25,399,685
26,437,109
27,047,348
30,533,897
31,634,863
26,115,730
26,629,079
Fiber
Digital
Carrier
1,664,422
633,547
789,425
1,045,955
1,174,299
1,344,877
1,418,742
3,045,443
3,455,927
4,690,974
5,047,328
Other
90
0
0
0
0
0
0
0
00
0
Total
Working
Channels
15,446,486
15,917,610
16,579,937
16,305,661
17,626,797
17,857,937
18,053,445
16,482,996
15,888,373
15,236,915
14,52
8,841
Copper
14,046,786
15,376,311
15,937,288
15,532,286
16,738,819
16,854,720
16,970,439
15,386,074
14,767,650
12,653,096
11,827,658
Fiber
Digital
Carrier
1,399,626
541,299
642,649
773,375
887,978
1,003,217
1,083,006
1,096,922
1,120,723
2,583,819
2,701,183
Other
74
0
0
0
0
0
0
0
00
0
Other
Transmission
Facility
Data:
Copper
Pairs
Term
Main
Frame
(Loop
Plant
Only)
22,010,903
21,990,829
22,185,268
22,926,817
22,904,300
23,579,244
24,032,521
24,062,333
2
4,290,865
24,407,172
24,749,958
Fiber
Strands
Term
in
the
CO
(Loop
Plant
Only)
66,497
124,026
189,365
193,409
206,178
158,881
256,736
329,584
388,011
161,950
172,172
Fiber
Term
at
Customer
Premises
DS1
Rate
44,622
48,552
77,598
77,545
113,701
103,739
130,287
160,740
172,872
273,498
307,114
Fiber
Term
at
Customer
Premises
DS3
Rate
&
Higher
2,566
2,733
4,365
5,039
5,615
1,995
3,668
4,523
4,828
20,354
26,529
ISDN
Capable
Lines
NA
NA
NA
3,773,275
4,157,674
12,158,269
12,168,819
12,055,812
11,177,094
4,981,445
4,680,190
NA:
Not
available
Source:
ARMIS
Report
43- 07.
Table
10.2
Transmission
System
Data
SBC
Southwestern
Bell
Companies 10 - 20
20
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Sheath
Kilometers: Total Sheath Kilometers
958,275
967,084
973,148
992,970
1,008,405
1,022,395
1,038,094
1,046,999
1,080,551
1,088,452
1,095,801
Copper
877,352
875,728
872,797
873,583
876,739
879,768
886,323
886,147
912,134
914,932
917,525
Fiber
78,415
89,132
98,425
118,987
130,872
141,888
151,432
160,494
168,185
173,174
177,930
Other
2,507
2,224
1,927
401
794
739
339
357
232
346
346
Interoffice
Working
Facilities:
Total
Circuit
Links
5,159,173
5,201,204
5,213,347
5,853,744
6,834,238
8,693,801
10,262,940
11,001,835
11,120,804
11,201,109
11,045,592
Loop
Plant
--
Central
Office
Terminations:
Total
Equipped
Channels
82,980,954
86,021,165
90,107,803
80,327,245
99,291,295
107,609,086
118,262,278
132,282,141
83,370,102
81,140,923
83,703,872
Copper
65,122,822
65,275,522
65,663,036
66,426,101
69,763,421
69,783,996
70,380,468
71,028,549
65,274,338
64,992,904
65,921,886
Fiber
Digital
Carrier
17,858,134
20,745,643
24,444,767
13,901,144
29,527,874
37,825,090
47,881,810
61,253,592
18,095,764
16,148,019
17,781
,986
Other
0
0
0
0
0
0
0
0
00
0
Total
Working
Channels
40,222,933
40,922,175
43,690,966
48,600,177
66,109,986
74,269,449
84,300,998
97,520,356
44,619,456
40,052,063
38,58
8,203
Copper
36,776,495
36,387,944
37,927,283
39,429,529
41,983,369
43,003,921
43,790,217
43,770,856
34,803,810
32,820,501
31,437,854
Fiber
Digital
Carrier
3,446,439
4,534,231
5,763,683
9,170,648
24,126,617
31,265,528
40,510,781
53,749,500
9,815,646
7,231,562
7,150,349
Other
0
0
0
0
0
0
0
0
00
0
Other
Transmission
Facility
Data:
Copper
Pairs
Term
Main
Frame
(Loop
Plant
Only)
60,557,866
60,577,213
60,635,648
61,342,895
61,875,146
61,342,016
60,962,933
60,979,463
6
2,622,453
62,718,766
63,581,514
Fiber
Strands
Term
in
the
CO
(Loop
Plant
Only)
273,279
604,501
704,901
872,210
1,014,974
1,127,598
1,227,204
1,359,225
1,487,203
1,552,12
0
1,601,097
Fiber
Term
at
Customer
Premises
DS1
Rate
47,833
65,929
78,266
131,829
192,129
246,434
314,204
612,368
21,723
21,693
22,149
Fiber
Term
at
Customer
Premises
DS3
Rate
&
Higher
1,306
1,767
2,333
4,094
18,518
24,111
32,912
40,995
2,778
2,715
2,639
ISDN
Capable
Lines
NA
NA
NA
31,943,090
40,648,786
47,596,665
38,205,741
35,587,450
34,658,178
33,659,351
31,478,816
NA:
Not
available
Source:
ARMIS
Report
43- 07.
Table
10.2
Transmission
System
Data
Verizon
-
Bell
Atlantic
Companies 10 - 21
21
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Sheath
Kilometers: Total Sheath Kilometers
1,149,241
1,127,943
1,248,505
1,268,110
1,290,068
1,312,437
1,041,353
1,053,450
938,012
946,019
967,564
Copper
1,093,297
1,065,667
1,177,702
1,188,835
1,203,101
1,219,257
959,596
965,586
856,090
859,017
863,698
Fiber
55,944
62,276
70,803
79,275
86,966
93,180
81,757
87,864
81,922
87,002
103,866
Other
0
0
0
0
0
0
0
0
00
0
Interoffice
Working
Facilities:
Total
Circuit
Links
3,327,397
4,029,495
1,900,698
2,461,398
2,445,471
4,004,974
4,182,896
4,701,614
4,365,148
4,250,911
4,274,046
Loop
Plant
--
Central
Office
Terminations:
Total
Equipped
Channels
25,939,736
29,164,999
30,128,527
30,278,580
31,455,009
42,599,694
44,228,437
44,158,765
42,082,287
40,826,357
38,442,967
Copper
24,215,106
27,326,198
28,146,972
27,709,878
28,240,814
29,880,881
28,232,406
26,443,750
24,631,902
22,051,252
17,578,663
Fiber
Digital
Carrier
1,719,799
1,833,845
1,978,522
2,559,245
3,209,964
12,715,677
15,994,041
17,713,874
17,449,464
18,774,264
20,864,304
Other
4,831
4,956
3,033
9,457
4,231
3,136
1,990
1,141
921
841
0
Total
Working
Channels
17,703,424
18,918,578
20,422,201
20,654,471
21,925,330
23,991,380
24,233,066
23,715,390
21,729,366
20,343,905
17,87
6,878
Copper
16,556,668
17,675,242
18,981,609
18,850,077
19,726,313
18,207,964
17,826,786
17,365,904
15,789,637
14,213,787
11,181,622
Fiber
Digital
Carrier
1,144,125
1,240,728
1,438,571
1,801,556
2,196,916
5,536,831
6,405,057
6,348,889
5,939,291
6,129,678
6,695,256
Other
2,631
2,608
2,021
2,838
2,101
246,585
1,223
597
438
440
0
Other
Transmission
Facility
Data:
Copper
Pairs
Term
Main
Frame
(Loop
Plant
Only)
24,051,564
27,417,498
27,804,891
29,713,980
30,313,513
29,094,240
21,787,495
21,925,961
2
2,039,455
19,347,181
14,945,270
Fiber
Strands
Term
in
the
CO
(Loop
Plant
Only)
54,651
70,974
80,372
93,238
126,604
43,739
39,394
33,298
31,120
29,697
28,814
Fiber
Term
at
Customer
Premises
DS1
Rate
4,819
11,488
16,469
23,480
4,846
11,316
289
214
172
169
173
Fiber
Term
at
Customer
Premises
DS3
Rate
&
Higher
1,073
1,186
11,043
2,173
4,439
224
960
980
639
570
771
ISDN
Capable
Lines
NA
NA
NA
12,935,628
13,732,469
16,265,613
18,031,436
12,148,900
11,606,200
15,742,902
10,128,737
NA:
Not
available
Source:
ARMIS
Report
43- 07.
Table
10.2
Transmission
System
Data
Verizon
-
GTE
Companies 10 - 22
22