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: 435 [Rate centres in NPA 435] [Dial plan for NPA 435]

NXX: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-579 A Tooele UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      
435-579 0 Tooele UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      
435-579 1 Tooele UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      
435-579 2 Tooele UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      
435-579 3 Tooele UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      
435-579 4 Tooele UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      
435-579 5 Tooele UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-579 6 Tooele UT WVCYUT14DS1  871E ONVOY, LLC - UT 660      
435-579 7 Tooele UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      
435-579 8 Tooele UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      
435-579 9 Tooele UT   871E ONVOY, LLC - UT 660      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.