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: 201

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-201 A Lee Vining CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2024-01-23   
442-201 0 Lee Vining CA   649C ONVOY, LLC - CA 730   2016-04-22   
442-201 1 Lee Vining CA   649C ONVOY, LLC - CA 730   2016-04-22   
442-201 3 Lee Vining CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2016-12-09   
442-201 4 Lee Vining CA   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-05-08   
442-201 5 Lee Vining CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2018-12-13   
442-201 6 Lee Vining CA   649C ONVOY, LLC - CA 730   2019-03-01   
442-201 7 Lee Vining CA   649C ONVOY, LLC - CA 730   2019-03-01   
442-201 8 Lee Vining CA   073H TELNYX LLC 730   2019-07-22   
442-201 9 Lee Vining CA   073H TELNYX LLC 730   2018-05-11   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.