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: COVNCAXFX3Y

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
909-914 4 Diamond Bar CA 649C ONVOY, LLC - CA 730   2021-07-30   
909-914 5 Diamond Bar CA 649C ONVOY, LLC - CA 730   2021-07-30   
909-925 6 Chino CA 649C ONVOY, LLC - CA 730   2023-11-12   
909-929 7 Claremont-San Dimas CA 649C ONVOY, LLC - CA 730   2013-09-22   
909-970 2 Chino CA 649C ONVOY, LLC - CA 730   2021-11-19   
909-970 3 Chino CA 649C ONVOY, LLC - CA 730   2021-11-19   
909-978 2 Diamond Bar CA 649C ONVOY, LLC - CA 730   2012-04-02   

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

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