Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: MARTTNXAPS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
731-261 A Martin TN 4336 CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC 468      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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