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.

OCN: 5736 COMMNET WIRELESS, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
435-273 A Montezuma Creek-Aneth UT MNCKUTXC2MD  981     2025-09-20 
520-479 A Tucson AZ TCSNAZMAX9Y  668      
520-479 0 Tucson AZ TCSNAZMAX9Y  668   2020-07-02   
719-509 A Trinidad CO CLSPCOMAXAY  658      
720-375 A Denver CO CSRKCOFEGT2  656      
720-375 7 Denver CO CSRKCOFEGT2  656   2007-08-31   
720-734 A Denver CO CSRKCOFEGT2  656      
720-734 0 Denver CO CSRKCOFEGT2  656   2020-07-02   
775-456 A Empire NV RENONV12RMD  720      
775-456 0 Empire NV RENONV12RMD  720   2020-07-02   
928-360 A Chinle AZ STMCAZAF0MD  980      
928-360 0 Chinle AZ STMCAZAF0MD  980   2020-07-02   
928-663 0 Chinle AZ STMCAZXE5MD  980   2016-04-28   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.