Local Calling Guide

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NPA: 903 [Rate centres in NPA 903] [Dial plan for NPA 903]

NXX: 548

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-548 A Denison TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2024-01-09   

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

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