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: 620

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
713-620 A Houston TX HSTNTXJADS0  9533 SOUTHWESTERN BELL 560      
713-620 0 Houston TX HSTNTXJADS0  9533 SOUTHWESTERN BELL 560      
713-620 1 Houston TX HSTNTXJADS0  9533 SOUTHWESTERN BELL 560      
713-620 2 Houston TX HSTNTXJADS0  9533 SOUTHWESTERN BELL 560      
713-620 3 Houston TX HSTNTXJADS0  9533 SOUTHWESTERN BELL 560      
713-620 4 Houston TX HSTNTXJADS0  9533 SOUTHWESTERN BELL 560      
713-620 5 Houston TX HSTNTXJADS0  9533 SOUTHWESTERN BELL 560      
713-620 6 Houston TX HSTNTXJADS0  9533 SOUTHWESTERN BELL 560      
713-620 7 Houston TX HSTNTXJADS0  9533 SOUTHWESTERN BELL 560      
713-620 8 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-12-03   
713-620 9 Houston TX HSTNTXJADS0  9533 SOUTHWESTERN BELL 560      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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