Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 628 [Rate centres in NPA 628] [Dial plan for NPA 628]

NXX: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
628-255 A San Francisco: Central DA CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
628-255 0 San Francisco: Central DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 1 San Francisco: Central DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 2 San Francisco: Central DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 3 San Francisco: Central DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 4 San Francisco: Central DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 5 San Francisco: Central DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 6 San Francisco: Central DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 7 San Francisco: Central DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 8 San Francisco: Central DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 9 San Francisco: Central DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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