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
617-459 4 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-01-17   
617-475 3 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-11-18   
617-475 5 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-10-11   
617-477 8 Jamaica Plain MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-05-19   
617-487 4 Brookline MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2003-01-12   
617-488 9 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-11-02   
617-500 A Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-500 0 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-10-19   
617-500 1 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-03-04   
617-500 2 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-02-25   
617-500 3 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-05-23   
617-500 4 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-500 5 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-10-25   
617-500 6 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-03-04   
617-500 7 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-05-16   
617-500 8 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-03-04   
617-505 A Brookline MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-505 1 Brookline MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-16   
617-505 4 Brookline MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-517 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-517 0 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-517 2 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-517 3 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-517 4 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-517 5 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-517 6 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-517 7 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-517 9 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-544 3 Everett MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-04   
617-544 8 Everett MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2011-08-27   
617-553 1 Jamaica Plain MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-01-12   
617-553 4 Jamaica Plain MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2003-08-20   
617-553 9 Jamaica Plain MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2011-11-12   
617-580 3 Charlestown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-04   
617-580 5 Charlestown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-07-14   
617-583 A Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-583 8 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-600 0 Watertown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2011-11-19   
617-600 3 Watertown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-04   
617-600 4 Watertown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-18   
617-600 5 Watertown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2010-02-14   
617-600 6 Watertown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2011-03-20   
617-600 7 Watertown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-17   
617-606 A Roxbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-606 3 Roxbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-01-15   
617-606 4 Roxbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-606 5 Roxbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-16   
617-606 6 Roxbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-16   
617-606 7 Roxbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-16   
617-606 9 Roxbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-16   

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

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