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: 628 [Rate centres in NPA 628] [Dial plan for NPA 628]

NXX: 682

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
628-682 A Novato CA SNFCCAMKX5Y  506J TWILIO INTERNATIONAL, INC. 722      
628-682 0 Novato CA OKLDCAEB0MD  073H TELNYX LLC 722   2022-09-18   
628-682 1 Novato CA SNJUCACL4MD  939H COMMIO, LLC 722   2022-11-10   
628-682 2 Novato CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2020-12-05   
628-682 3 Novato CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2020-12-05   
628-682 4 Novato CA SNJUCACL9MD  516J TON80 COMMUNICATIONS, LLC 722   2021-06-19   
628-682 5 Novato CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2021-06-05   
628-682 6 Novato CA SNFCCAMKX5Y  506J TWILIO INTERNATIONAL, INC. 722   2020-10-26   
628-682 7 Novato CA   6529 T-MOBILE USA, INC. 722   2024-04-09   
628-682 8 Novato CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2023-03-11   
628-682 9 Novato CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2021-03-21   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.