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: 369 [Rate centres in NPA 369] [Dial plan for NPA 369]

NXX: 777

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
369-777 A Sonoma CA SNFCCA21XCZ  252F WIDE VOICE, LLC - CA 722      
369-777 1 Sonoma CA OKLECAZVGT0  5562 METROPCS, INC. 722   2023-09-24   
369-777 7 Sonoma CA SNFCCA21XCZ  252F WIDE VOICE, LLC - CA 722   2023-09-17   
369-777 9 Sonoma CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2023-12-15   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.