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: 907

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-907 A Santa Monica: Santa Monica DA CA ANHMCAHLDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
310-907 0 Santa Monica: Santa Monica DA CA ANHMCAHLDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
310-907 1 Santa Monica: Santa Monica DA CA WLANCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730   2002-06-21   
310-907 2 Santa Monica: Santa Monica DA CA WLANCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730   2002-06-26   
310-907 3 Santa Monica: Santa Monica DA CA WLANCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730   2005-04-18   
310-907 4 Santa Monica: Santa Monica DA CA WLANCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730   2005-04-18   
310-907 5 Santa Monica: Santa Monica DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2003-03-22   
310-907 6 Santa Monica: Santa Monica DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-08-05   
310-907 7 Santa Monica: Santa Monica DA CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2005-02-05   
310-907 8 Santa Monica: Santa Monica DA CA   515J IP HORIZON LLC 730   2005-02-05   
310-907 9 Santa Monica: Santa Monica DA CA ANHMCAHLDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.