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: 522

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-522 A San Mateo CA SNMTCA11DS1  9740 PACIFIC BELL 722      
650-522 0 San Mateo CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2010-12-05   
650-522 1 San Mateo CA   9740 PACIFIC BELL 722      
650-522 2 San Mateo CA   9740 PACIFIC BELL 722      
650-522 3 San Mateo CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2009-04-23   
650-522 4 San Mateo CA   9740 PACIFIC BELL 722      
650-522 5 San Mateo CA   9740 PACIFIC BELL 722      
650-522 6 San Mateo CA   9740 PACIFIC BELL 722      
650-522 7 San Mateo CA   9740 PACIFIC BELL 722      
650-522 8 San Mateo CA   9740 PACIFIC BELL 722      
650-522 9 San Mateo CA   9740 PACIFIC BELL 722      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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