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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
413-239 A Northfield MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-251 A Hinsdale MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-306 A Springfield MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-320 A Northampton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-338 A Warren MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-340 A Williamsburg MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-341 A Northampton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-349 A Hatfield MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-412 A North Adams MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-459 A Chicopee MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-461 A Amherst MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-471 A Chesterfield MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-497 A Gilbertville MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-591 A Great Barrington MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-650 A Holyoke MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-728 A Lenox MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-729 A Westfield MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-849 A Charlemont MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-853 A Ashfield MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-994 A Charlemont MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      

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

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