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: 921

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
724-921 A Imperial PA MPTSPA020MD  422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 234      
724-921 0 Imperial PA MPTSPA020MD  422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 234   2006-08-11   
724-921 1 Imperial PA PITBPADTX7X  073H TELNYX LLC 234   2017-08-03   
724-921 2 Imperial PA PITBPAOKXUX  145J TERRA NOVA TELECOM INC. 234   2024-02-16   

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

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