Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 310 [Rate centres in NPA 310] [Dial plan for NPA 310]

NXX: 439

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-439 A Santa Monica: Mar Vista DA CA CLCYCAXG39K  2319 FRONTIER CALIFORNIA INC. 730      
310-439 0 Santa Monica: Mar Vista DA CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2005-05-16   
310-439 1 Santa Monica: Mar Vista DA CA SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2001-02-09   
310-439 2 Santa Monica: Mar Vista DA CA SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2009-11-03   
310-439 3 Santa Monica: Mar Vista DA CA LSAJCAWZ7MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2003-03-17   
310-439 4 Santa Monica: Mar Vista DA CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2005-05-16   
310-439 5 Santa Monica: Mar Vista DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-04-24   
310-439 6 Santa Monica: Mar Vista DA CA CLCYCAXG39K  2319 FRONTIER CALIFORNIA INC. 730      
310-439 7 Santa Monica: Mar Vista DA CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-08-15   
310-439 8 Santa Monica: Mar Vista DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-01-15   
310-439 9 Santa Monica: Mar Vista DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-01-15   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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