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: 441

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-441 A Barstow: Yermo DA CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2024-01-23   
442-441 0 Barstow: Yermo DA CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2020-11-07   
442-441 1 Barstow: Yermo DA CA LSANCARC32Z  073H TELNYX LLC 730   2021-02-27   
442-441 2 Barstow: Yermo DA CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2020-01-14   
442-441 3 Barstow: Yermo DA CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2020-01-14   
442-441 4 Barstow: Yermo DA CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2020-08-28   
442-441 5 Barstow: Yermo DA CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2020-08-28   
442-441 7 Barstow: Yermo DA CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2021-08-09   
442-441 8 Barstow: Yermo DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-10-22   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.