Local Calling Guide

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NPA: 281 [Rate centres in NPA 281] [Dial plan for NPA 281]

NXX: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
281-374 A Tomball EMS TX TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 0 Tomball EMS TX TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 1 Tomball EMS TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2009-01-05   
281-374 2 Tomball EMS TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-09-16   
281-374 3 Tomball EMS TX TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 4 Tomball EMS TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-09-16   
281-374 5 Tomball EMS TX TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 6 Tomball EMS TX TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 7 Tomball EMS TX TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 8 Tomball EMS TX TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 9 Tomball EMS TX TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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