Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

NXX: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-257 A Katy TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
346-257 0 Katy TX HSTNTXYA9MD  997G LOCAL ACCESS LLC - TX 560   2017-07-14   
346-257 1 Katy TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-08-30   
346-257 2 Katy TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2017-07-06   
346-257 3 Katy TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-08-30   
346-257 4 Katy TX HSTNTXMOX7X  318J COMCAST IP PHONE LLC 560   2018-07-03   
346-257 5 Katy TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-10-29   
346-257 6 Katy TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2017-10-14   
346-257 7 Katy TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-09-01   
346-257 8 Katy TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-01-21   
346-257 9 Katy TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-01-21   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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