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: 642

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-642 A Newberry CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730      
442-642 0 Newberry CA LSANCARC32Z  073H TELNYX LLC 730   2021-03-13   
442-642 1 Newberry CA LSANCAJWHMD  145J TERRA NOVA TELECOM INC. 730   2024-07-10   
442-642 2 Newberry CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2021-08-09   
442-642 4 Newberry CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2020-12-04   
442-642 5 Newberry CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2020-12-04   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.