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: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
713-640 A Houston TX HSTNTXMIDS0  9533 SOUTHWESTERN BELL 560      
713-640 0 Houston TX HSTNTXMIDS0  9533 SOUTHWESTERN BELL 560      
713-640 1 Houston TX HSTNTXMIDS0  9533 SOUTHWESTERN BELL 560      
713-640 2 Houston TX HSTNTXMIDS0  9533 SOUTHWESTERN BELL 560      
713-640 3 Houston TX HSTNTXMIDS0  9533 SOUTHWESTERN BELL 560      
713-640 4 Houston TX HSTNTXMIDS0  9533 SOUTHWESTERN BELL 560      
713-640 5 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2008-02-29   
713-640 6 Houston TX HSTNTXMIDS0  9533 SOUTHWESTERN BELL 560      
713-640 7 Houston TX HSTNTXMIDS0  9533 SOUTHWESTERN BELL 560      
713-640 8 Houston TX HSTNTXMIDS0  9533 SOUTHWESTERN BELL 560      
713-640 9 Houston TX HSTNTXMIDS0  9533 SOUTHWESTERN BELL 560      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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