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: 349

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-349 A Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-349 0 Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-349 1 Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-349 2 Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-349 3 Hawthorne CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
310-349 4 Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-349 5 Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-349 6 Hawthorne CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-349 7 Hawthorne CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-349 8 Hawthorne CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-349 9 Hawthorne CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.