Local Calling Guide

Area code/prefix search

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

NXX: 571

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-571 A Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-571 0 Houston TX   318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 1 Houston TX   318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 2 Houston TX   318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 3 Houston TX   318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 4 Houston TX   318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 5 Houston TX   318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 6 Houston TX   318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 7 Houston TX   318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 8 Houston TX   318J COMCAST IP PHONE, LLC 560   2015-10-30   
346-571 9 Houston TX   318J COMCAST IP PHONE, LLC 560   2015-10-30   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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