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: 867

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-867 A Monterey CA MTRYCAPM1MD  939H COMMIO, LLC 736      
831-867 0 Monterey CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-867 1 Monterey CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-867 2 Monterey CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-867 3 Monterey CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-867 4 Monterey CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-867 5 Monterey CA MTRYCAPM1MD  939H COMMIO, LLC 736      
831-867 6 Monterey CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-867 7 Monterey CA MTRYCAPM7MD  516J TON80 COMMUNICATIONS, LLC 736      
831-867 8 Monterey CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-867 9 Monterey CA   624H ONVOY SPECTRUM, LLC 736      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.