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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: SPFDMAWOZMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
413-853 7 Ashfield MA 508J CENTURYLINK COMMUNICATIONS, LLC 126   2015-04-17   
413-862 6 Russell MA 508J CENTURYLINK COMMUNICATIONS, LLC 126   2015-04-21   
413-865 7 Lee MA 508J CENTURYLINK COMMUNICATIONS, LLC 126   2015-04-17   
413-889 6 West Stockbridge MA 508J CENTURYLINK COMMUNICATIONS, LLC 126   2015-04-21   
413-893 7 Monson MA 508J CENTURYLINK COMMUNICATIONS, LLC 126   2015-04-21   
413-931 9 Stockbridge MA 508J CENTURYLINK COMMUNICATIONS, LLC 126   2015-04-21   
413-944 7 Blandford MA 508J CENTURYLINK COMMUNICATIONS, LLC 126   2015-04-17   

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

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