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: 461

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-461 A Beverly Hills CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-461 0 Beverly Hills CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-461 1 Beverly Hills CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-461 2 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-05-08   
310-461 3 Beverly Hills CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-461 4 Beverly Hills CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2010-08-30   
310-461 5 Beverly Hills CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-03-24   
310-461 6 Beverly Hills CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-03-24   
310-461 7 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-05-08   
310-461 8 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-07-05   
310-461 9 Beverly Hills CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2009-03-24   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.