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: CMBRMA01DS5

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
617-218 A Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-250 A Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-431 A Newton MA 7135 TC SYSTEMS, INC. 128      
617-454 A Newton MA 7135 TC SYSTEMS, INC. 128      
617-528 A Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-612 A Watertown MA 7135 TC SYSTEMS, INC. 128      
617-613 A Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-616 A Somerville MA 7135 TC SYSTEMS, INC. 128      
617-663 A Newton MA 7135 TC SYSTEMS, INC. 128      
617-932 A Belmont MA 7135 TC SYSTEMS, INC. 128      
781-205 A Reading MA 7135 TC SYSTEMS, INC. 128      
781-218 A Winchester MA 7135 TC SYSTEMS, INC. 128      
781-225 A Lexington MA 7135 TC SYSTEMS, INC. 128      
781-266 A Lexington MA 7135 TC SYSTEMS, INC. 128      
781-350 A Medford MA 7135 TC SYSTEMS, INC. 128      
781-370 A Waltham MA 7135 TC SYSTEMS, INC. 128      
781-406 A Lynnfield MA 7135 TC SYSTEMS, INC. 128      
781-417 A Saugus MA 7135 TC SYSTEMS, INC. 128      
781-429 A Needham MA 7135 TC SYSTEMS, INC. 128      
781-430 A Lexington MA 7135 TC SYSTEMS, INC. 128      
781-434 A Waltham MA 7135 TC SYSTEMS, INC. 128      
781-443 A Arlington MA 7135 TC SYSTEMS, INC. 128      
781-462 A Melrose MA 7135 TC SYSTEMS, INC. 128      
781-464 A Waltham MA 7135 TC SYSTEMS, INC. 128      
781-530 A Waltham MA 7135 TC SYSTEMS, INC. 128      
781-557 A Wakefield MA 7135 TC SYSTEMS, INC. 128      
781-560 A Revere MA 7135 TC SYSTEMS, INC. 128      
781-565 A Burlington MA 7135 TC SYSTEMS, INC. 128      
781-584 A Lynn MA 7135 TC SYSTEMS, INC. 128      
781-594 A Lynn MA 7135 TC SYSTEMS, INC. 128      
781-638 A Woburn MA 7135 TC SYSTEMS, INC. 128      
781-653 A Burlington MA 7135 TC SYSTEMS, INC. 128      
781-685 A Burlington MA 7135 TC SYSTEMS, INC. 128      
781-707 A Needham MA 7135 TC SYSTEMS, INC. 128      
781-835 A Stoneham MA 7135 TC SYSTEMS, INC. 128      
781-869 A Lexington MA 7135 TC SYSTEMS, INC. 128      
781-870 A Malden MA 7135 TC SYSTEMS, INC. 128      
781-918 A Lexington MA 7135 TC SYSTEMS, INC. 128      
781-943 A Wellesley MA 7135 TC SYSTEMS, INC. 128      
781-994 A Woburn MA 7135 TC SYSTEMS, INC. 128      
857-304 A Watertown MA 7135 TC SYSTEMS, INC. 128      
857-367 A Watertown MA 7135 TC SYSTEMS, INC. 128   2020-12-15   

Last updated: Mon, 24 May 2021 01:28:43 UTC

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