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: 298

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-298 A Trona CA LSANCARCD4S  973E RACE TELECOMMUNICATIONS, INC. - CA 730      
442-298 0 Trona CA   973E RACE TELECOMMUNICATIONS, INC. - CA 730   2016-12-25   
442-298 1 Trona CA   073H TELNYX LLC 730   2018-06-05   
442-298 2 Trona CA   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-05-08   
442-298 3 Trona CA   649C ONVOY, LLC - CA 730   2019-03-01   
442-298 4 Trona CA   649C ONVOY, LLC - CA 730   2019-03-01   
442-298 5 Trona CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2019-12-15   
442-298 7 Trona CA   649C ONVOY, LLC - CA 730   2020-07-06   
442-298 8 Trona CA   649C ONVOY, LLC - CA 730   2020-07-06   
442-298 9 Trona CA   649C ONVOY, LLC - CA 730   2021-08-09   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.