*Pages 1--2 from 19245.xls* NANPA CONTRIBUTION FACTOR July 2002 through June 2003 TABLE 1 DISBURSEMENT PROJECTION 7/ 02 - 6/ 03 Line #NeuStar Source 1 NANPA ADMINISTRATION NANP WG Evaluation + EST. $2,007,720 2 CO CODE ADMINISTRATION NANP WG Evaluation + EST. $3,405,150 3 Sub- total Ln 1 + Ln 2 $5,412,870 4 1K BLOCK POOLING June 2001 FCC- NeuStar Contract $3,073,368 5 Total Ln 3 + Ln 4 $8,486,238 6 Carrier Audits Estimate based on FCC 2/ 02 & 3/ 02 PO $700,000 7 COCUS Replacement NANC 5/ 3/ 00 Letter $203,000 8 MITRE Corp. Fee FCC 4/ 05/ 02 Letter $288,000 NBANC 9 BILLING AND COLLECTION Estimate $351,422 10 BOARD OF DIRECTORS CCB Letter to NANC 2/ 10/ 98 $25,000 11 ANNUAL AUDIT CCB Letters to NANC 2/ 10/ 98 & NBANC 12/ 22/ 00 $28,680 12 CONTINGENCY A. CONTINUING $1,000,000 B. PENDING & POTENTIAL REQUESTS $2,655,000 13 Total NBANC Ln 9 + Ln 10 + Ln 11 + Ln 12 a & b $4,060,102 14 Total 7/ 02 - 6/ 03 Funding Requirement Ln 5 + Ln 6 + Ln 7 + Ln 8 + Ln 13 $13,737,340 CONTRIBUTION PROJECTION International Participants 15 Canada Exhibit ? $145,059 16 Caribbean Countries Exhibit ? $28,635 17 Total International Contribution Ln 15 + Ln 16 $173,694 Domestic Telecommunications Carriers 18 7/ 01- 6/ 02 fund balance $7,684,187 19 7/ 01- 6/ 02 balance to be applied against 7/ 02- 6/ 03 requirement $3,250,000 20 7/ 01- 6/ 02 balance to be held & applied against future years $4,434,187 21 Net Contribution Requirement Ln 14 - Ln 17 - L19 $10,313,646 22 End User Revenues FCC Form 499A, 4/ 02 $237,432,541,877 23 7/ 02 - 6/ 03 Contribution Factor Ln 21/ Ln 22 0.000043 1 NANPA CONTRIBUTION FACTOR July 2002 through June 2003 TABLE 1 2