Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 329 [Rate centres in NPA 329] [Dial plan for NPA 329]

NXX: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
329-400 A Monroe NY   124L BARR TELL USA, INC. 133   2025-12-15   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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