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: 442 [Rate centres in NPA 442] [Dial plan for NPA 442]

NXX: 324

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-324 A Indio CA PLSPCAXGFMD  793K TWC IP ENABLED SERVICES, LLC 973      
442-324 0 Indio CA PLSPCAXGFMD  793K TWC IP ENABLED SERVICES, LLC 973   2015-05-11   
442-324 1 Indio CA PLSPCAXGX6Y  6010 NEW CINGULAR WIRELESS PCS, LLC 973   2015-05-12   
442-324 2 Indio CA PLSPCAXGFMD  793K TWC IP ENABLED SERVICES, LLC 973   2015-08-14   
442-324 3 Indio CA PLSPCAXGXTY  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 973   2015-08-20   
442-324 4 Indio CA PLSPCAXGXTY  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 973   2015-08-20   
442-324 5 Indio CA PLSPCAXGX6Y  6010 NEW CINGULAR WIRELESS PCS, LLC 973   2015-08-12   
442-324 6 Indio CA PLSPCAXGX6Y  6010 NEW CINGULAR WIRELESS PCS, LLC 973   2015-08-12   
442-324 7 Indio CA PLSPCAXGX0Z  899D METROPCS NETWORKS, LLC 973   2015-12-05   
442-324 8 Indio CA   515J IP HORIZON LLC 973   2015-08-07   
442-324 9 Indio CA PLSPCAXGX6Y  6010 NEW CINGULAR WIRELESS PCS, LLC 973   2015-07-13   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.