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: 873

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-873 A West Los Angeles CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-873 0 West Los Angeles CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-873 1 West Los Angeles CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-873 2 West Los Angeles CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-873 3 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
310-873 4 West Los Angeles CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-873 5 West Los Angeles CA LSANCAJWDS8  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-873 6 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
310-873 7 West Los Angeles CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-873 8 West Los Angeles CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-873 9 West Los Angeles CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.