Local Calling Guide

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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   2015-08-02   
435-557 1 Logan UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2016-06-30   
435-557 2 Logan UT SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2018-11-04   
435-557 3 Logan UT WVCYUT14DS1  871E ONVOY, LLC - UT 660   2016-03-03   
435-557 4 Logan UT WVCYUT14DS1  871E ONVOY, LLC - UT 660   2016-03-03   
435-557 5 Logan UT SLKDUTBTPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 660   2016-09-16   
435-557 6 Logan UT SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2015-09-22   
435-557 7 Logan UT SLKCUTMAX9Y  508J CENTURYLINK COMMUNICATIONS, LLC 660   2017-04-05   
435-557 8 Logan UT SLKCUT26DS1  526H PEERLESS NETWORK OF UTAH, LLC - UT 660   2019-06-27   
435-557 9 Logan UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2017-01-18   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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