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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-273 8 Livermore CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2001-10-29   
925-292 2 Livermore CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-292 3 Livermore CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-302 4 Bishop Ranch CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2003-06-24   
925-361 A Dublin-San Ramon CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-361 1 Dublin-San Ramon CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-361 4 Dublin-San Ramon CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-361 9 Dublin-San Ramon CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-385 A Lafayette CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-385 2 Lafayette CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-387 A Martinez CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-387 1 Martinez CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-388 A Moraga CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-388 2 Moraga CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-395 A Walnut Creek CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-395 9 Walnut Creek CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-419 5 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2023-12-29   
925-419 6 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2023-12-29   
925-419 7 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2023-12-29   
925-419 8 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2023-12-29   
925-419 9 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2023-12-29   
925-425 A Pleasanton CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-425 1 Pleasanton CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-425 3 Pleasanton CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-425 4 Pleasanton CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-425 5 Pleasanton CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-425 6 Pleasanton CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-436 4 Antioch CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2018-05-03   
925-476 6 Walnut Creek CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2023-02-25   
925-493 A Livermore CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-493 2 Livermore CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-493 3 Livermore CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-493 4 Livermore CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-533 6 Livermore CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2021-12-06   
925-546 6 Walnut Creek CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2022-09-05   
925-566 A Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-566 9 Concord CA 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
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: Tue, 16 Apr 2024 01:38:01 UTC

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