Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 413 [Rate centres in NPA 413] [Dial plan for NPA 413]

NXX: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
413-501 A Sheffield MA SPFDMAOI0MD  939H COMMIO, LLC 126      
413-501 0 Sheffield MA SPFDMAOI0MD  939H COMMIO, LLC 126   2023-11-26   
413-501 1 Sheffield MA SPFDMAOI0MD  939H COMMIO, LLC 126   2023-11-26   
413-501 2 Sheffield MA SPFDMAOI0MD  939H COMMIO, LLC 126   2023-11-26   
413-501 3 Sheffield MA SPFDMAOI0MD  939H COMMIO, LLC 126   2023-11-26   
413-501 4 Sheffield MA SPFDMAOI0MD  939H COMMIO, LLC 126   2023-11-26   

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

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