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: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-557 A Logan UT SLKCUTMAX9X  117F BANDWIDTH.COM CLEC, LLC - UT 660      
435-557 0 Logan UT SLKCUTMAX9X  117F BANDWIDTH.COM CLEC, LLC - UT 660      
435-557 1 Logan UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-557 2 Logan UT SLKCUTJCGT1  6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-557 3 Logan UT WVCYUT14DS1  871E ONVOY, LLC - UT 660      
435-557 4 Logan UT WVCYUT14DS1  871E ONVOY, LLC - UT 660      
435-557 5 Logan UT   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 660      
435-557 6 Logan UT SLKCUTJCGT1  6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-557 7 Logan UT SLKCUTMAX9Y  508J CENTURYLINK COMMUNICATIONS, LLC 660      
435-557 8 Logan UT SLKCUT26DS1  526H PEERLESS NETWORK OF UTAH, LLC - UT 660      
435-557 9 Logan UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.