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.

Hildale, UT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
435-212 A SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-212 0 SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2005-01-24   
435-212 1 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2015-03-16   
435-212 2   145J TERRA NOVA TELECOM INC. 660   2025-07-10   
435-212 3 SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2007-05-12   
435-212 4 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2018-05-27   
435-212 8 SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2010-11-11   
435-874 A PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
435-874 0 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
435-874 1 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
435-874 2 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
435-874 3 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
435-874 4 SLKCUT26DMD  516J TON80 COMMUNICATIONS, LLC 660   2021-06-18   
435-874 5 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
435-874 6 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
435-874 7 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
435-874 8 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      
435-874 9 PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.