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.

Colorado City, AZ

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
928-644 A SLKCUT26BMD  965H FRACTEL, LLC 660      
928-644 4 SLKCUT26BMD  965H FRACTEL, LLC 660   2020-11-29   
928-875 A PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
928-875 0 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
928-875 1 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
928-875 2 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
928-875 3 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
928-875 4 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
928-875 5 SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2021-05-24   
928-875 6 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
928-875 7 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
928-875 8 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
928-875 9 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.