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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-590 A Inglewood CA   6664 SPRINT SPECTRUM L.P. 730      
310-590 0 Inglewood CA   6664 SPRINT SPECTRUM L.P. 730   2003-03-26   
310-590 1 Inglewood CA   8322 MPOWER COMMUNICATIONS CORP - CA 730   2003-04-11   
310-590 2 Inglewood CA   8322 MPOWER COMMUNICATIONS CORP - CA 730   2003-04-11   
310-590 3 Inglewood CA   8690 GLOBAL CROSSING LOCAL SERVICES, INC.-CA 730   2000-05-29   
310-590 4 Inglewood CA   4733 PAETEC COMMUNICATIONS, INC. - CA 730   2000-04-03   
310-590 5 Inglewood CA   6664 SPRINT SPECTRUM L.P. 730   2004-06-30   
310-590 6 Inglewood CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-02-20   
310-590 7 Inglewood CA   8827 BROADWING COMMUNICATIONS, LLC - CA 730   2001-05-30   
310-590 8 Inglewood CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-07-18   
310-590 9 Inglewood CA   6664 SPRINT SPECTRUM L.P. 730   2004-06-30   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.