Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: DLLSTX97DSV

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-238 A Dallas TX 184H T2 COMMUNICATIONS L.L.C. - TX 552      
214-238 1 Dallas TX 184H T2 COMMUNICATIONS L.L.C. - TX 552   2014-03-08   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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