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
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   
978-253 4 Wilmington MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2003-12-08   
978-261 3 Sudbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-03   

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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