Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: OKLDCAAN3KD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
650-220 A San Mateo CA 9748 AMERICAN MESSAGING SERVICES, LLC 722      
650-221 A Redwood City CA 6906 AMERICAN MESSAGING SERVICES, LLC 722      
650-247 A Palo Alto CA 6906 AMERICAN MESSAGING SERVICES, LLC 722      
650-277 A Redwood City CA 6967 33 WIRELESS INC. 722      
650-406 A Mountain View CA 6906 AMERICAN MESSAGING SERVICES, LLC 722      
650-408 A San Mateo CA 6906 AMERICAN MESSAGING SERVICES, LLC 722      
650-423 A Redwood City CA 7379 MATRIX TELECOM, LLC. SII TNCI - CA 722      
650-500 A San Carlos-Belmont CA 6906 AMERICAN MESSAGING SERVICES, LLC 722      

Last updated: Sun, 31 May 2020 11:59:01 UTC

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