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: 592

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
940-592 A Iowa Park TX IWPKTXBARS0  9533 SOUTHWESTERN BELL 548      
940-592 0 Iowa Park TX DLLSTXAL0MD  515J IP HORIZON LLC 548   2021-03-18   
940-592 1 Iowa Park TX IWPKTXBARS0  9533 SOUTHWESTERN BELL 548      
940-592 2 Iowa Park TX IWPKTXBARS0  9533 SOUTHWESTERN BELL 548      
940-592 3 Iowa Park TX WCFLTXESX5Y  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 548   2014-07-11   
940-592 4 Iowa Park TX IWPKTXBARS0  9533 SOUTHWESTERN BELL 548      
940-592 5 Iowa Park TX IWPKTXBARS0  9533 SOUTHWESTERN BELL 548      
940-592 6 Iowa Park TX   145J TERRA NOVA TELECOM INC. 548   2022-04-12   
940-592 7 Iowa Park TX WCFLTXFG6MD  939H COMMIO, LLC 548   2022-08-11   
940-592 9 Iowa Park TX IWPKTXBARS0  9533 SOUTHWESTERN BELL 548      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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