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

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
617-218 A Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-218 0 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-218 1 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-218 2 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-218 3 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-218 4 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-218 5 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-218 6 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-218 8 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-218 9 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-250 A Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-250 1 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-250 2 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-250 3 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-250 4 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-250 5 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-250 6 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-250 9 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-409 4 Chelsea MA 7135 TC SYSTEMS, INC. 128      
617-431 A Newton MA 7135 TC SYSTEMS, INC. 128      
617-431 9 Newton MA 7135 TC SYSTEMS, INC. 128      
617-454 A Newton MA 7135 TC SYSTEMS, INC. 128      
617-454 0 Newton MA 7135 TC SYSTEMS, INC. 128      
617-454 1 Newton MA 7135 TC SYSTEMS, INC. 128      
617-454 2 Newton MA 7135 TC SYSTEMS, INC. 128      
617-454 3 Newton MA 7135 TC SYSTEMS, INC. 128      
617-454 6 Newton MA 7135 TC SYSTEMS, INC. 128      
617-454 9 Newton MA 7135 TC SYSTEMS, INC. 128      
617-528 A Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-528 1 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-528 2 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-528 3 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-528 4 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-528 5 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-528 6 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-528 7 Cambridge MA 7135 TC SYSTEMS, INC. 128      
617-544 4 Everett MA 7135 TC SYSTEMS, INC. 128      
617-612 A Watertown MA 7135 TC SYSTEMS, INC. 128      
617-612 1 Watertown MA 7135 TC SYSTEMS, INC. 128      
617-612 2 Watertown MA 7135 TC SYSTEMS, INC. 128      
617-612 7 Watertown MA 7135 TC SYSTEMS, INC. 128      
617-612 9 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      
617-616 1 Somerville MA 7135 TC SYSTEMS, INC. 128      
617-616 4 Somerville MA 7135 TC SYSTEMS, INC. 128      
617-616 6 Somerville MA 7135 TC SYSTEMS, INC. 128      
617-616 7 Somerville MA 7135 TC SYSTEMS, INC. 128      
617-663 A Newton MA 7135 TC SYSTEMS, INC. 128      
617-663 1 Newton MA 7135 TC SYSTEMS, INC. 128      
617-663 2 Newton MA 7135 TC SYSTEMS, INC. 128      
617-663 3 Newton MA 7135 TC SYSTEMS, INC. 128      
617-663 4 Newton MA 7135 TC SYSTEMS, INC. 128      
617-663 5 Newton MA 7135 TC SYSTEMS, INC. 128      
617-663 7 Newton MA 7135 TC SYSTEMS, INC. 128      
617-663 9 Newton MA 7135 TC SYSTEMS, INC. 128      
617-668 5 Watertown MA 7135 TC SYSTEMS, INC. 128      
617-932 A Belmont MA 7135 TC SYSTEMS, INC. 128      
617-932 4 Belmont MA 7135 TC SYSTEMS, INC. 128      
781-205 A Reading MA 7135 TC SYSTEMS, INC. 128      
781-205 5 Reading MA 7135 TC SYSTEMS, INC. 128      
781-218 A Winchester MA 7135 TC SYSTEMS, INC. 128      
781-218 0 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      
781-266 0 Lexington MA 7135 TC SYSTEMS, INC. 128      
781-266 1 Lexington MA 7135 TC SYSTEMS, INC. 128      
781-266 2 Lexington MA 7135 TC SYSTEMS, INC. 128      
781-266 3 Lexington MA 7135 TC SYSTEMS, INC. 128      
781-266 4 Lexington MA 7135 TC SYSTEMS, INC. 128      
781-266 5 Lexington MA 7135 TC SYSTEMS, INC. 128      
781-266 9 Lexington MA 7135 TC SYSTEMS, INC. 128      
781-350 A Medford MA 7135 TC SYSTEMS, INC. 128      
781-350 1 Medford MA 7135 TC SYSTEMS, INC. 128      
781-350 7 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      
781-406 1 Lynnfield MA 7135 TC SYSTEMS, INC. 128      
781-406 2 Lynnfield MA 7135 TC SYSTEMS, INC. 128      
781-417 A Saugus MA 7135 TC SYSTEMS, INC. 128      
781-417 1 Saugus MA 7135 TC SYSTEMS, INC. 128      
781-429 A Needham MA 7135 TC SYSTEMS, INC. 128      
781-429 4 Needham MA 7135 TC SYSTEMS, INC. 128      
781-430 A Lexington MA 7135 TC SYSTEMS, INC. 128      
781-430 1 Lexington MA 7135 TC SYSTEMS, INC. 128      
781-430 2 Lexington MA 7135 TC SYSTEMS, INC. 128      
781-434 A Waltham MA 7135 TC SYSTEMS, INC. 128      
781-434 0 Waltham MA 7135 TC SYSTEMS, INC. 128      
781-434 1 Waltham MA 7135 TC SYSTEMS, INC. 128      
781-434 2 Waltham MA 7135 TC SYSTEMS, INC. 128      
781-434 3 Waltham MA 7135 TC SYSTEMS, INC. 128      
781-434 4 Waltham MA 7135 TC SYSTEMS, INC. 128      
781-434 5 Waltham MA 7135 TC SYSTEMS, INC. 128      
781-434 6 Waltham MA 7135 TC SYSTEMS, INC. 128      
781-434 7 Waltham MA 7135 TC SYSTEMS, INC. 128      
781-443 A Arlington MA 7135 TC SYSTEMS, INC. 128      
781-443 0 Arlington MA 7135 TC SYSTEMS, INC. 128      
781-462 A Melrose MA 7135 TC SYSTEMS, INC. 128      
781-462 0 Melrose MA 7135 TC SYSTEMS, INC. 128      
781-462 2 Melrose MA 7135 TC SYSTEMS, INC. 128      

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

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