Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 724 [Rate centres in NPA 724] [Dial plan for NPA 724]

NXX: 629

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
724-629 A Westford PA MPTSPA020MD  422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 234      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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