Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: SPFDMAOI0MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
413-836 0 Great Barrington MA 939H COMMIO, LLC 126   2021-10-22   
413-836 1 Great Barrington MA 939H COMMIO, LLC 126   2021-10-22   
413-836 8 Great Barrington MA 939H COMMIO, LLC 126   2021-10-22   
413-836 9 Great Barrington MA 939H COMMIO, LLC 126   2021-10-22   
413-867 A Springfield MA 939H COMMIO, LLC 126      
413-867 5 Springfield MA 939H COMMIO, LLC 126   2021-06-05   
413-942 1 Colrain MA 939H COMMIO, LLC 126   2023-11-18   
413-942 2 Colrain MA 939H COMMIO, LLC 126   2023-11-18   
413-942 3 Colrain MA 939H COMMIO, LLC 126   2023-11-18   
413-942 4 Colrain MA 939H COMMIO, LLC 126   2023-11-18   
413-942 5 Colrain MA 939H COMMIO, LLC 126   2023-11-18   
413-946 0 Hinsdale MA 939H COMMIO, LLC 126   2023-11-18   
413-946 1 Hinsdale MA 939H COMMIO, LLC 126   2023-11-18   
413-946 2 Hinsdale MA 939H COMMIO, LLC 126   2023-11-18   
413-946 8 Hinsdale MA 939H COMMIO, LLC 126   2023-11-18   
413-946 9 Hinsdale MA 939H COMMIO, LLC 126   2023-11-18   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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