Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 940 [Rate centres in NPA 940] [Dial plan for NPA 940]

NXX: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
940-538 A Henrietta TX HNRTTXBRRS0  9533 SOUTHWESTERN BELL 548      
940-538 0 Henrietta TX   9533 SOUTHWESTERN BELL 548      
940-538 1 Henrietta TX   9533 SOUTHWESTERN BELL 548      
940-538 2 Henrietta TX   073H TELNYX LLC 548   2021-03-19   
940-538 3 Henrietta TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 548   2017-04-24   
940-538 4 Henrietta TX   9533 SOUTHWESTERN BELL 548      
940-538 5 Henrietta TX   9533 SOUTHWESTERN BELL 548      
940-538 6 Henrietta TX   9533 SOUTHWESTERN BELL 548      
940-538 7 Henrietta TX   793K TWC IP ENABLED SERVICES, LLC 548   2022-02-27   
940-538 8 Henrietta TX   903C ONVOY, LLC - TX 548   2018-10-03   
940-538 9 Henrietta TX   162J COMCELL, INC. - TX 548   2018-09-13   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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