Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: SNRSCA01KMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-568 A Sunol CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-568 9 Sunol CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-590 6 Bishop Ranch CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2023-07-13   
925-655 0 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2019-05-30   
925-655 1 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2019-05-30   
925-655 2 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2019-05-30   
925-655 3 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2019-05-30   
925-655 4 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2019-05-30   
925-659 9 Bishop Ranch CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2023-11-02   
925-965 A Pleasanton CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-965 9 Pleasanton CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      

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Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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