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: 831 [Rate centres in NPA 831] [Dial plan for NPA 831]

NXX: 270

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-270 A Salinas CA SLNSCA01XQY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 736      
831-270 0 Salinas CA SLNSCA01XCY  624H ONVOY SPECTRUM, LLC 736      
831-270 1 Salinas CA   939H COMMIO, LLC 736      
831-270 2 Salinas CA   649C ONVOY, LLC - CA 736      
831-270 3 Salinas CA   649C ONVOY, LLC - CA 736      
831-270 4 Salinas CA SLNSCA01XQY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 736      
831-270 5 Salinas CA   649C ONVOY, LLC - CA 736      
831-270 6 Salinas CA   649C ONVOY, LLC - CA 736      
831-270 7 Salinas CA SLNSCA01XQY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 736      
831-270 8 Salinas CA   939H COMMIO, LLC 736      
831-270 9 Salinas CA   649C ONVOY, LLC - CA 736      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.