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: 367

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-367 A Calexico CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732      
442-367 0 Calexico CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2022-03-23   
442-367 1 Calexico CA   490J DISH WIRELESS, LLC 732   2023-07-01   
442-367 2 Calexico CA   981E BANDWIDTH.COM CLEC, LLC - CA 732   2022-08-25   
442-367 3 Calexico CA   516J TON80 COMMUNICATIONS, LLC 732   2022-02-26   
442-367 4 Calexico CA   981E BANDWIDTH.COM CLEC, LLC - CA 732   2022-08-25   
442-367 5 Calexico CA   939H COMMIO, LLC 732   2022-10-16   
442-367 6 Calexico CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2022-06-06   
442-367 7 Calexico CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2022-04-22   
442-367 8 Calexico CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2022-03-03   
442-367 9 Calexico CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2021-12-03   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.