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: SPFDMAWOXXY

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
413-579 A Westfield MA 7135 TC SYSTEMS, INC. 126      
413-579 0 Westfield MA 7135 TC SYSTEMS, INC. 126      
413-588 A Northampton MA 7135 TC SYSTEMS, INC. 126      
413-588 0 Northampton MA 7135 TC SYSTEMS, INC. 126      
413-631 A Ludlow MA 7135 TC SYSTEMS, INC. 126      
413-631 0 Ludlow MA 7135 TC SYSTEMS, INC. 126      
413-666 9 Granville MA 7135 TC SYSTEMS, INC. 126   2023-04-21   
413-672 A North Adams MA 7135 TC SYSTEMS, INC. 126      
413-672 5 North Adams MA 7135 TC SYSTEMS, INC. 126      
413-672 6 North Adams MA 7135 TC SYSTEMS, INC. 126      
413-676 6 Turners Falls MA 7135 TC SYSTEMS, INC. 126   2012-07-02   
413-728 6 Lenox MA 7135 TC SYSTEMS, INC. 126   2010-06-01   
413-729 5 Westfield MA 7135 TC SYSTEMS, INC. 126   2005-07-11   
413-754 7 Longmeadow MA 7135 TC SYSTEMS, INC. 126   2012-07-02   
413-758 8 Ware MA 7135 TC SYSTEMS, INC. 126   2019-04-26   
413-779 7 Easthampton MA 7135 TC SYSTEMS, INC. 126   2012-07-02   
413-846 2 Springfield MA 7135 TC SYSTEMS, INC. 126   2018-01-11   
413-937 4 Lee MA 7135 TC SYSTEMS, INC. 126   2018-03-09   
413-942 0 Colrain MA 7135 TC SYSTEMS, INC. 126   2023-02-23   
413-966 8 Northampton MA 7135 TC SYSTEMS, INC. 126   2023-05-14   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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