Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 832 [Rate centres in NPA 832] [Dial plan for NPA 832]

NXX: 251

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
832-251 A Houston TX HSTNTXSUDS1  9533 SOUTHWESTERN BELL 560      
832-251 0 Houston TX   9533 SOUTHWESTERN BELL 560      
832-251 1 Houston TX   9533 SOUTHWESTERN BELL 560      
832-251 2 Houston TX   903C ONVOY, LLC - TX 560   2019-11-22   
832-251 3 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2025-01-01   
832-251 4 Houston TX   9533 SOUTHWESTERN BELL 560      
832-251 5 Houston TX   9533 SOUTHWESTERN BELL 560      
832-251 6 Houston TX   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-11   
832-251 7 Houston TX   903C ONVOY, LLC - TX 560   2014-10-15   
832-251 8 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2025-01-01   
832-251 9 Houston TX   9533 SOUTHWESTERN BELL 560      

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

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