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: 297

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-297 A Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-297 0 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-297 1 Hollister CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-297 2 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-297 3 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-297 4 Hollister CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-297 5 Hollister CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-297 6 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-297 7 Hollister CA SLNSCA01XOX  776C CHARTER FIBERLINK CA-CCO, LLC - CA 736      
831-297 8 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-297 9 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.