PUBLIC NOTICE
Federal Communications Commission
445 12th Street, S.W.
Washington, D.C. 20554
News Media Information 202 / 418-0500
Internet:  http://www.fcc.gov
TTY 1-888-835-5322
WIRELINE COMPETITION BUREAU NETWORK CHANGE NOTIFICATION
FILED BY AT&T CALIFORNIA
Report No. NCD-1842 September 15, 2010
Re: NETWORK CHANGE CERTIFICATION RECEIVED
AT&T California, an incumbent local exchange carrier (LEC), has filed certification that public notice of 
network change(s) has been provided through its publicly accessible Internet site as required by section 
51.329(a) of the rules of the Federal Communications Commission (FCC).  See 47 C.F.R. § 51.329(a).  
Upon initial review the filing appears to be complete.  See 47 C.F.R. §§ 51.325 through 51.335.  Specific 
network change information can be obtained on the Internet at: http://www.att.com/gen/public-
affairs?pid=3137
The incumbent LEC's certification(s) refer(s) to the change(s) identified below:
Number Type of Change(s) Planned Location of 
Change(s)
ATT20100128L.1 The Los Angeles, California, LSANCA0470T 4ESS tandem 
serving LATA 730 has been scheduled for decommissioning 
by July 29, 2011.  All carriers that have trunking to this 
tandem will be affected by this change.  All carriers need to 
move their traffic to the Los Angeles, California, 
LSANCA0398T Nortel CS2000 switch between October 2010 
and June 2011.
Los Angeles, CA
  
The network change(s) identified herein shall not be implemented within six months of the date of notice 
provided to the public under section 51.329(a).  See 47 C.F.R. § 51.331(a)(1); see also 47 C.F.R. § 
51.329(a).
Incumbent LEC contact:
Linda S. Vandeloop
Director – Federal Regulatory
AT&T Services Inc.
1120 20th Street, N.W., Suite 1000
Washington, D.C. 20036      Phone: (202) 457-3033
The original filing is available for inspection and copying at the FCC Public Reference Room, Portals II, 
445 12th Street, S.W., Suite CY-A257, Washington, D.C. 20554.
For further information, contact Carmell Weathers, (202) 418-2325 (voice), or 
carmell.weathers@fcc.gov (email), of the Competition Policy Division, Wireline Competition Bureau.  
The tty number is (202) 418-0484.
-FCC-