Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: DLLSTXHWDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
817-289 A Fort Worth TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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