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: SNFCCAMKX9X

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-232 9 Pittsburg West CA 073H TELNYX LLC 722   2021-11-06   
925-257 6 Orinda CA 073H TELNYX LLC 722   2021-02-26   
925-298 1 Lafayette CA 073H TELNYX LLC 722   2021-10-17   
925-351 1 Pleasanton CA 073H TELNYX LLC 722   2021-10-28   
925-361 6 Dublin-San Ramon CA 073H TELNYX LLC 722   2021-08-02   
925-492 3 Pittsburg CA 073H TELNYX LLC 722   2021-11-26   
925-532 A Walnut Creek CA 073H TELNYX LLC 722      
925-532 0 Walnut Creek CA 073H TELNYX LLC 722   2017-05-01   
925-644 8 Concord CA 073H TELNYX LLC 722   2021-11-07   
925-993 4 Clayton CA 073H TELNYX LLC 722   2021-11-06   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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