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: 238

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
628-238 A Ignacio CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
628-238 0 Ignacio CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
628-238 1 Ignacio CA   515J IP HORIZON LLC 722      
628-238 2 Ignacio CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
628-238 3 Ignacio CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
628-238 4 Ignacio CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
628-238 5 Ignacio CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
628-238 6 Ignacio CA SNJUCACL3MD  073H TELNYX LLC 722      
628-238 7 Ignacio CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
628-238 8 Ignacio CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
628-238 9 Ignacio CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.