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: BRTNMACOVMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
508-501 A New Bedford MA 7135 TC SYSTEMS, INC. 128      
508-591 A Plymouth MA 7135 TC SYSTEMS, INC. 128      
508-744 A Barnstable MA 7135 TC SYSTEMS, INC. 128      
774-226 A Taunton MA 7135 TC SYSTEMS, INC. 128      
774-376 A Carver MA 7135 TC SYSTEMS, INC. 128      
774-702 A Vineyard Haven MA 7135 TC SYSTEMS, INC. 128      
781-678 A Hull MA 7135 TC SYSTEMS, INC. 128      

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

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