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: 224

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-224 A Monterey CA   6529 T-MOBILE USA, INC. 736      
831-224 0 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736      
831-224 2 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736      
831-224 3 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736      
831-224 4 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736      
831-224 5 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736      
831-224 6 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736      
831-224 7 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736      
831-224 8 Monterey CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-224 9 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 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.