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.

Monticello, UT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
435-298 A MNTIUT140MD  832J E. FIBER SAN JUAN, LLC 660      
435-298 8 MNTIUT140MD  832J E. FIBER SAN JUAN, LLC 660   2022-01-15   
435-419 A SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-419 0 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-419 1 WVCYUT14DS1  871E ONVOY, LLC - UT 660   2020-12-20   
435-419 2 WVCYUT14DS1  871E ONVOY, LLC - UT 660   2019-05-21   
435-419 3 WVCYUT14DS1  871E ONVOY, LLC - UT 660   2019-05-21   
435-419 4 WVCYUT14DS1  871E ONVOY, LLC - UT 660   2018-11-12   
435-419 5 WVCYUT14DS1  871E ONVOY, LLC - UT 660   2020-08-08   
435-419 6 TOOLUTMAAMD  7530 TELEPORT COMMUNICATIONS AMERICA, LLC - UT 660   2020-11-17   
435-419 7 WVCYUT14DS1  871E ONVOY, LLC - UT 660   2020-12-20   
435-419 9 SLKEUT45DS0  5727 FIRSTDIGITAL TELECOM, LLC - UT 660   2017-12-20   
435-459 A SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-459 0 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-459 1 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-459 2 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-459 3 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-459 4 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-459 8 WVCYUT145MD  073H TELNYX LLC 660   2021-02-11   
435-459 9 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-587 A MNTIUTXCDS0  4429 CITIZENS TELECOM-UTAH DBA FRONTIER COMM OF UT 660      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.