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: 438

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
713-438 A Houston TX HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-438 0 Houston TX HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-438 1 Houston TX HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-438 2 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2005-10-23   
713-438 3 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2005-10-23   
713-438 4 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-04-22   
713-438 5 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-04-22   
713-438 6 Houston TX HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-438 7 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2005-10-23   
713-438 8 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2005-10-23   
713-438 9 Houston TX HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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