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: RSVLCAXF0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
279-201 A Fair Oaks (Sacramento) CA 649C ONVOY, LLC - CA 726   2024-01-21   
279-236 A Roseville: Main DA CA 649C ONVOY, LLC - CA 726   2024-01-21   
279-243 A Roseville: Main DA CA 649C ONVOY, LLC - CA 726      
279-259 A Roseville: Main DA CA 649C ONVOY, LLC - CA 726   2024-05-17   
279-279 A Roseville: Citrus Heights DA CA 649C ONVOY, LLC - CA 726      
279-737 A Roseville: Citrus Heights DA CA 649C ONVOY, LLC - CA 726      
279-790 A Fair Oaks (Sacramento) CA 649C ONVOY, LLC - CA 726   2024-01-21   
916-232 A Roseville: Main DA CA 649C ONVOY, LLC - CA 726      
916-666 A Roseville: Main DA CA 649C ONVOY, LLC - CA 726   2024-01-21   
916-888 A Roseville: Main DA CA 649C ONVOY, LLC - CA 726   2024-01-21   
916-907 A Fair Oaks (Sacramento) CA 649C ONVOY, LLC - CA 726   2024-01-21   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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