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.
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Switch: OKLDCA03XKY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-205 0 Danville CA 624H ONVOY SPECTRUM, LLC 722   2023-12-16   
925-258 7 Orinda CA 624H ONVOY SPECTRUM, LLC 722   2023-12-16   
925-307 3 Dublin-San Ramon CA 624H ONVOY SPECTRUM, LLC 722   2023-12-16   
925-514 0 Martinez CA 624H ONVOY SPECTRUM, LLC 722   2023-12-16   
925-520 9 Pleasanton CA 624H ONVOY SPECTRUM, LLC 722   2023-12-16   
925-531 A Lafayette CA 624H ONVOY SPECTRUM, LLC 722   2024-01-27   
925-531 0 Lafayette CA 624H ONVOY SPECTRUM, LLC 722   2024-01-27   
925-590 A Bishop Ranch CA 624H ONVOY SPECTRUM, LLC 722      
925-590 5 Bishop Ranch CA 624H ONVOY SPECTRUM, LLC 722   2022-08-25   
925-690 8 Clayton CA 624H ONVOY SPECTRUM, LLC 722   2023-12-16   
925-888 0 Moraga CA 624H ONVOY SPECTRUM, LLC 722   2023-12-16   

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

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