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: WRCSMA02DS1

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
781-566 6 Marshfield MA 7135 TC SYSTEMS, INC. 128      
781-728 7 Lincoln MA 7135 TC SYSTEMS, INC. 128      
781-936 7 Kingston MA 7135 TC SYSTEMS, INC. 128      
857-342 6 Hyde Park MA 7135 TC SYSTEMS, INC. 128      
857-816 6 Winthrop MA 7135 TC SYSTEMS, INC. 128      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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