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: 310 [Rate centres in NPA 310] [Dial plan for NPA 310]

NXX: 901

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-901 A Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-901 0 Torrance CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730      
310-901 1 Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-901 2 Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-901 3 Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-901 4 Torrance CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730      
310-901 5 Torrance CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730      
310-901 6 Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-901 7 Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-901 8 Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-901 9 Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.