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
857-354 3 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2019-09-08   
857-354 8 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2019-09-23   
857-362 0 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-12-09   
857-362 7 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-12-09   
857-362 8 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-12-09   
857-362 9 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-12-09   
857-363 2 Everett MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-03-24   
857-363 3 Everett MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-03-24   
857-366 4 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-04-10   
857-366 5 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-30   
857-366 6 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-30   
857-366 7 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-12-03   
857-369 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-369 0 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-02-23   
857-369 1 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-02-23   
857-369 2 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-02-23   
857-369 3 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-02-23   
857-369 4 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-02-23   
857-369 5 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-02-23   
857-369 6 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-02-23   
857-369 7 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-02-23   
857-369 8 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-02-23   
857-369 9 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-02-23   
857-413 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-413 2 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-11-10   
857-413 3 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-11-10   
857-445 0 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-05-01   
857-445 4 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-05-01   
857-453 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-453 1 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-07-10   
857-453 4 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-15   
857-453 6 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-07-10   
857-453 7 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-07-10   
857-453 8 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-07-10   
857-488 3 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-08-30   
857-488 4 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-08-05   
857-504 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2024-01-03   
857-504 2 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2016-02-19   
857-504 6 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2016-02-19   
857-559 4 Brighton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-06-20   
857-598 2 Milton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-02-10   
857-598 4 Milton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2003-09-10   
857-598 5 Milton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-01-04   
857-598 6 Milton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2011-08-27   
857-598 9 Milton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-03-24   
857-702 0 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-08-08   
857-706 A Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-706 2 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-04-25   
857-706 6 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-08-07   
857-770 2 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-05-16   
857-776 A Chelsea MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-776 3 Chelsea MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-04   
857-776 7 Chelsea MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-03-25   
857-777 5 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-08-03   
857-816 3 Winthrop MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-04   
857-880 2 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2016-03-26   
857-972 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-972 7 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-09-26   
857-972 8 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-09-19   
857-972 9 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-09-19   
857-990 4 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-12-13   
857-990 5 Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-12-13   
857-998 4 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-07   
857-998 6 Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-07   
978-203 4 Wilmington MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-19   
978-203 5 Wilmington MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-19   
978-203 6 Wilmington MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-31   
978-203 9 Wilmington MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-31   
978-207 3 North Reading MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-05-15   
978-208 2 Lawrence MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-19   
978-208 3 Lawrence MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-19   
978-208 4 Lawrence MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-05-13   
978-212 0 Hudson MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-04-07   
978-212 2 Hudson MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-19   
978-212 3 Hudson MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-01-31   
978-212 6 Hudson MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-14   
978-218 2 Sudbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-19   
978-218 7 Sudbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-07-13   
978-219 A Salem MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-219 8 Salem MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-12-19   
978-221 2 Lowell MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-02-11   
978-226 1 Tyngsboro MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-02-19   
978-229 A Wilmington MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-229 2 Wilmington MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-233 A Hamilton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-233 2 Hamilton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-234 A Georgetown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-234 0 Georgetown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-234 1 Georgetown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-234 7 Georgetown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-234 9 Georgetown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-237 A Lawrence MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-237 5 Lawrence MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-13   
978-241 7 Haverhill MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-19   
978-248 0 Athol MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-04-07   
978-248 7 Athol MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2010-09-04   
978-252 A Ashburnham MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-252 1 Ashburnham MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-01-06   
978-252 7 Ashburnham MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-02   
978-253 0 Wilmington MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-02-14   

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

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.