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.

NPA: 669 [Rate centres in NPA 669] [Dial plan for NPA 669]

NXX: 399

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
669-399 A San Martin CA SNJUCACL7MD  965H FRACTEL, LLC 722      
669-399 0 San Martin CA SNFCCAMKX9X  073H TELNYX LLC 722   2021-02-26   
669-399 1 San Martin CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-03-04   
669-399 2 San Martin CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-03-04   
669-399 3 San Martin CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-03-04   
669-399 4 San Martin CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-08-09   
669-399 5 San Martin CA SNFCCA21XPZ  553J WHITESKY COMMUNICATIONS, LLC 722   2021-09-16   
669-399 6 San Martin CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-07-23   
669-399 7 San Martin CA SNFCCAMKX6Y  515J IP HORIZON LLC 722   2021-04-29   
669-399 8 San Martin CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2021-02-07   
669-399 9 San Martin CA SNJUCACL7MD  965H FRACTEL, LLC 722   2021-02-05   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.