Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-231 A Millbrae CA FRMTCAEDDS0  7262 XO CALIFORNIA, INC. 722      
650-231 0 Millbrae CA   7262 XO CALIFORNIA, INC. 722      
650-231 1 Millbrae CA   7262 XO CALIFORNIA, INC. 722      
650-231 2 Millbrae CA   7262 XO CALIFORNIA, INC. 722   2010-10-11   
650-231 3 Millbrae CA   485E ASTOUND BROADBAND, LLC - CA 722   2019-10-26   
650-231 4 Millbrae CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2009-06-16   
650-231 7 Millbrae CA   3662 PACIFIC CENTREX SERVICES, INC. - CA 722   2006-12-01   
650-231 8 Millbrae CA   516C AT&T CORP. 722   2006-06-30   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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