Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 925 [Rate centres in NPA 925] [Dial plan for NPA 925]

NXX: 638

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-638 A Martinez CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2026-07-06   
925-638 0 Martinez CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-07   
925-638 6 Martinez CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2026-07-06   
925-638 7 Martinez CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2026-07-06   
925-638 8 Martinez CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2026-07-06   
925-638 9 Martinez CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2026-07-06   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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