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: CMBRMAORDSG

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
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   
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      
617-544 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   
617-600 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   
617-607 3 Watertown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-06-24   
617-607 4 Watertown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-03-16   
617-612 4 Watertown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-05-23   
617-622 0 South Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-639 A Quincy MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-639 0 Quincy MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-11-14   
617-639 5 Quincy MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-648 2 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-648 4 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-648 5 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-648 7 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-05-23   
617-648 8 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-648 9 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-655 5 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2020-04-08   
617-671 0 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-01-07   
617-671 1 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-01-07   
617-674 0 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-14   
617-674 1 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-14   
617-674 2 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-07-04   
617-674 3 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-08-05   
617-674 6 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-05   
617-674 7 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-05   
617-676 4 Jamaica Plain MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-681 7 Charlestown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-05-16   
617-729 2 Quincy MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-729 3 Quincy MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-729 4 Quincy MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-741 4 Somerville MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-741 6 Somerville MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-751 6 Brookline MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-751 7 Brookline MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-762 0 Newton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-762 5 Newton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-765 A South Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-765 0 South Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-01-18   
617-765 2 South Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2013-09-01   
617-765 4 South Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-798 8 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2020-01-09   
617-800 0 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-29   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >>

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.