Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 713 [Rate centres in NPA 713] [Dial plan for NPA 713]

NXX: 838

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
713-838 A Houston TX HSTNTXMODS0  9533 SOUTHWESTERN BELL 560      
713-838 0 Houston TX HSTNTXMODS0  9533 SOUTHWESTERN BELL 560      
713-838 1 Houston TX HSTNTXMODS0  9533 SOUTHWESTERN BELL 560      
713-838 2 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-10-22   
713-838 3 Houston TX HSTNTXMODS0  9533 SOUTHWESTERN BELL 560      
713-838 4 Houston TX HSTNTXMODS0  9533 SOUTHWESTERN BELL 560      
713-838 5 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2006-03-22   
713-838 6 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2006-12-29   
713-838 7 Houston TX HSTNTXMODS0  9533 SOUTHWESTERN BELL 560      
713-838 8 Houston TX HSTNTXMODS0  9533 SOUTHWESTERN BELL 560      
713-838 9 Houston TX HSTNTXMODS0  9533 SOUTHWESTERN BELL 560      

Last updated: Fri, 10 Jul 2026 02:55:48 UTC

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