Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
617-340 8 Newton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-14   
617-360 8 Hyde Park MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-04   
617-370 3 Chelsea MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-01-27   
617-377 6 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-01-13   
617-377 7 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-01-13   
617-379 0 Dorchester MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-01   
617-379 1 Dorchester MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-05-24   
617-379 2 Dorchester MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-07-14   
617-379 3 Dorchester MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-01-29   
617-379 6 Dorchester MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-15   
617-379 7 Dorchester MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-15   
617-380 A Charlestown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-380 5 Charlestown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-381 4 Everett MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-10   
617-390 7 Jamaica Plain MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-19   
617-390 8 Jamaica Plain MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-19   
617-391 0 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-06-16   
617-395 A Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-395 0 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-395 1 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-395 2 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-395 4 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-395 5 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-395 6 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-395 7 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-395 8 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-395 9 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-401 A Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-401 0 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-02-07   
617-401 7 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-17   
617-401 8 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-17   
617-401 9 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-01-03   
617-409 0 Chelsea MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-01   
617-409 2 Chelsea MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-01-29   
617-409 6 Chelsea MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-12   
617-409 7 Chelsea MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-12   
617-415 1 Brighton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-30   
617-415 5 Brighton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-11-18   
617-418 1 East Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-11-13   
617-418 2 East Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-03-08   
617-418 3 East Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-12   
617-418 4 East Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-11-13   
617-431 1 Newton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-06-20   
617-431 2 Newton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-01-29   
617-431 4 Newton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2003-03-24   
617-431 5 Newton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-10-01   
617-440 3 Somerville MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-04   
617-440 4 Somerville MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-18   
617-440 5 Somerville MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-04-27   
617-440 7 Somerville MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-08-15   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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