SBC Network Notification No. SBC20050325S.1
Issue Date: 3/25/2005
Modification Date: 05/01/2005

Carrier's Name:
SBC California

Contact: Your Account Manager or Service Representative

Technical Issues
Eric D. Smith
3 SBC Plaza Rm. 710
Dallas, Texas 75202
214 858-1303
es9206@sbc.com

Public Notice can be obtained on the Internet at:
http://www.sbc.com/public_affairs/regulatory_documents/network_disclosures/home.html

Network Change:
Access Services

Description of Type of Changes Planned:
This Public Notice is a revision to SBC20041108L.1. The purposes of this update are to clarify that CLEC applications for physical collocation in the new CRNDCA02 central office will not be accepted prior to May 2005, and to adjust the window of time during which installation can take place.

SBC California plans to migrate all existing circuits and services from its existing Central Office, CRNDCA11, to a new Central Office, CRNDCA02, which is being built on adjacent property. This migration is triggered by the floor space exhaust of the existing building and municipal restrictions that preclude SBC California from expanding the building. A development agreement entered into by SBC California and the City of Coronado, Ca. requires the construction of a new Central Office building and the demolition of the existing CRNDCA11 Central Office by December 31, 2008. The addresses of both buildings follows:

From: CRNDCA11, 778 Orange Ave., Coronado, Ca. 92118
To: CRNDCA02, 756 Orange Ave., Coronado, Ca. 92118

The terms of the development agreement dictate the following timeline:

Overall Project Timeline:

SBC California completes new CRNDCA02 building	Jan 2005
SBC California installs ironwork, cable rack, lights, new Main Distributing Frame, new Fiber Distributing Frame, new Power Equipment, Transport equipment, Collocation cages, and Outside Plant equipment in CRNDCA02 building	Jan - Sept 2005
CLECs can begin to submit Collocation applications for CRNDCA02	May 2005
CLECs install new physical collocation equipment in CRNDCA02	Aug - Oct 2005
CLEC physical collocation equipment, in CRNDCA02, Ready for Service deadline	Nov 30, 2005
SBC California transitions copper based services, including DSL and HiCaps to new Main Distributing Frame in CRNDCA02	Jan 2006 - June 2007
SBC California selects replacement for existing DMS-100 Switch	Feb 2006
SBC California installs new replacement switch in CRNDCA02	June 2007 - Feb 2008
SBC California dial with dials to replacement switch in CRNDCA02	Mar 28, 2008
SBC California demolishes existing CRNDCA11 building	Nov 2008

Description of Reasonably Foreseeable Impact of the Planned Changes:
The migration plan developed by SBC California is designed to have minimal impact on all customers served by CRNDCA11.

Part of the migration plan calls for the installation and testing of all physical collocation equipment in the new CRNDCA02 building no later than November 30, 2005. Because the circuit migration is scheduled to begin in January, 2006, failure to meet this date may cause service disruption for those customers served by CLECs. It is also necessary that all existing physical collocation equipment in CRNDCA11 continue to work until all circuits have been migrated to CRNDCA02.

Location of Change:

CLLI Code/Statewide	City	State	Implementation Date
CRNDCA11	Coronado	California	5/1/2005