Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Terminal 640, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
432-640 A TRMNTXTERS0  9533 SOUTHWESTERN BELL 542      
432-640 0   9533 SOUTHWESTERN BELL 542      
432-640 1   9533 SOUTHWESTERN BELL 542      
432-640 2   9533 SOUTHWESTERN BELL 542      
432-640 3   9533 SOUTHWESTERN BELL 542      
432-640 4   9533 SOUTHWESTERN BELL 542      
432-640 5   9533 SOUTHWESTERN BELL 542      
432-640 6   9533 SOUTHWESTERN BELL 542      
432-640 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 542   2013-03-23   
432-640 8   9533 SOUTHWESTERN BELL 542      
432-640 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 542   2006-10-12   

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

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