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
857-224 A BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128      
857-224 0 BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128   2010-02-07   
857-224 1 BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128   2010-02-07   
857-224 2 BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128   2010-02-07   
857-224 3 BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128   2010-02-07   
857-224 4 BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128   2010-02-07   
857-224 5 BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128   2010-02-07   
857-224 6 BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128   2010-02-07   
857-224 7 BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128   2010-02-07   
857-224 8 BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128   2010-02-07   
857-224 9 BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128   2010-02-07   
857-233 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-233 0 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-04-10   
857-233 1 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-06   
857-233 2 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-06-02   
857-233 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-07-13   
857-233 4 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-06-02   
857-233 5 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-06-02   
857-233 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-07-02   
857-233 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-07-02   
857-233 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-05-16   
857-233 9 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-04-10   
857-236 A NRTNMAAACM4  5562 METROPCS, INC. 128      
857-236 0 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-236 1 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-236 2 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-236 3 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-236 4 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-236 5 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-236 6 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-236 7 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-236 8 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-236 9 NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-237 A NRTNMAAACM4  5562 METROPCS, INC. 128      
857-237 0 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-08-03   
857-237 1 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-08-03   
857-237 2 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-08-03   
857-237 3 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-08-03   
857-237 4 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-08-03   
857-237 5 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-08-03   
857-237 6 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-08-03   
857-237 7 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-08-03   
857-237 8 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-08-03   
857-237 9 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-08-03   
857-238 A BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
857-238 0   9102 VERIZON NEW ENGLAND INC. 128   2008-01-05   
857-238 1   9102 VERIZON NEW ENGLAND INC. 128   2008-01-05   
857-238 2   9102 VERIZON NEW ENGLAND INC. 128   2008-01-05   
857-238 3   9102 VERIZON NEW ENGLAND INC. 128   2008-01-05   
857-238 4   9102 VERIZON NEW ENGLAND INC. 128   2008-01-05   
857-238 5   9102 VERIZON NEW ENGLAND INC. 128   2008-01-05   
857-238 6   9102 VERIZON NEW ENGLAND INC. 128   2008-01-05   
857-238 7   9102 VERIZON NEW ENGLAND INC. 128   2008-01-05   
857-238 8   9102 VERIZON NEW ENGLAND INC. 128   2008-01-05   
857-238 9   9102 VERIZON NEW ENGLAND INC. 128   2008-01-05   
857-239 A BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-239 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-06-19   
857-239 1 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-03-01   
857-239 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-03-01   
857-239 3 BSTNMABODS2  9102 VERIZON NEW ENGLAND INC. 128   2010-06-15   
857-239 4 BSTNMABODS2  9102 VERIZON NEW ENGLAND INC. 128   2010-06-15   
857-239 5   829J PAETEC ITEL, LLC 128   2010-06-09   
857-239 6 BSTNMABODS2  9102 VERIZON NEW ENGLAND INC. 128   2010-06-15   
857-239 7   829J PAETEC ITEL, LLC 128   2010-03-24   
857-239 8 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2010-09-22   
857-239 9 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2010-09-22   
857-241 A CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-241 0 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-04-07   
857-241 1 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-06-08   
857-241 2   829J PAETEC ITEL, LLC 128   2007-09-28   
857-241 3 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-12-18   
857-241 4 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-12-18   
857-241 5 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-06-08   
857-241 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-10-03   
857-241 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-11-12   
857-241 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-04-19   
857-241 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-04-19   
857-243 A BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-243 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-07-18   
857-243 1 NRTNMAAACM4  5562 METROPCS, INC. 128   2010-06-19   
857-243 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2009-12-27   
857-243 3 NRTNMAAACM4  5562 METROPCS, INC. 128   2010-06-19   
857-243 4 NRTNMAAACM4  5562 METROPCS, INC. 128   2010-06-19   
857-243 5 NRTNMAAACM4  5562 METROPCS, INC. 128   2010-06-19   
857-243 6   829J PAETEC ITEL, LLC 128   2009-12-29   
857-243 7 NRTNMAAACM4  5562 METROPCS, INC. 128   2010-06-19   
857-243 8 CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128   2010-05-03   
857-243 9 CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128   2010-05-03   
857-244 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-244 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-08-15   
857-244 1 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-07   
857-244 2   829J PAETEC ITEL, LLC 128   2009-01-05   
857-244 3 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-20   
857-244 4 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-20   
857-244 5 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-06   
857-244 6 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2009-05-15   
857-244 7 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2024-09-11   
857-244 8   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2025-02-06   
857-244 9 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-06   
857-246 A NRTNMAAACM4  5562 METROPCS, INC. 128      

<< 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: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.