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.

Boston, MA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
857-302 5 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-10-16   
857-302 6 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2014-12-27   
857-302 7 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-05-15   
857-302 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-11-08   
857-302 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-11-08   
857-303 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2013-04-01   
857-303 1 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2013-04-01   
857-303 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2013-12-15   
857-303 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-11-01   
857-303 4 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-06-19   
857-303 5 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-06-19   
857-303 6 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-05-01   
857-303 7 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-05-01   
857-303 8 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-05-01   
857-303 9 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-05-01   
857-305 A CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-305 0 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-05-23   
857-305 1   829J PAETEC ITEL, LLC 128   2014-04-17   
857-305 2 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2013-09-19   
857-305 3 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2013-10-31   
857-305 4   829J PAETEC ITEL, LLC 128   2013-11-14   
857-305 5   829J PAETEC ITEL, LLC 128   2013-11-14   
857-305 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-09-26   
857-305 7 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-09-26   
857-305 8 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-05-09   
857-305 9 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-05-09   
857-306 A BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128      
857-306 0 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-306 1 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-306 2 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-306 3 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-306 4 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-306 5 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-306 6 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-306 7 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-306 8 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-306 9 BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2017-12-08   
857-310 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-310 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-02-01   
857-310 1 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-02-01   
857-310 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-02-01   
857-310 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-02-01   
857-310 4 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-03-01   
857-310 5 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2015-01-12   
857-310 6 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-03-15   
857-310 7 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-03-15   
857-310 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-12-13   
857-310 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-12-13   
857-312 A NRTNMAAACM4  5562 METROPCS, INC. 128      
857-312 0 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-312 1 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-312 2 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-312 3 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-312 4 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-312 5 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-312 6 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-312 7 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-312 8 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-312 9 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-313 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-313 0 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-04-16   
857-313 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-04-16   
857-313 2 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-04-16   
857-313 3 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2013-01-27   
857-313 4 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-04-16   
857-313 5 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-04-16   
857-313 6   829J PAETEC ITEL, LLC 128   2013-02-06   
857-313 7 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2014-02-11   
857-313 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2012-12-21   
857-313 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2012-12-21   
857-315 A BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128      
857-315 0 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-315 1 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-315 2 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-315 3 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-315 4 BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2017-12-08   
857-315 5 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2017-12-09   
857-315 6 CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-10-11   
857-315 7 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-12-11   
857-315 8 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-12-11   
857-315 9 CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-10-11   
857-317 A BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128      
857-317 0 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-10-11   
857-317 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-10-11   
857-317 2 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2014-05-29   
857-317 3 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2014-05-29   
857-317 4 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2014-05-29   
857-317 5 CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2015-01-14   
857-317 6 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2014-04-12   
857-317 7 BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2013-05-31   
857-317 8 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-10-24   
857-317 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-08-23   
857-318 A CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-318 0 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-12-10   
857-318 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-04-24   
857-318 2 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-06   
857-318 3 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-06   
857-318 4 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-06   
857-318 5 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-06   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 >>

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.