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
857-318 5 NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-06   
857-318 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-05-01   
857-318 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-05-01   
857-318 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-05-01   
857-318 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-05-01   
857-319 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-319 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-08-03   
857-319 1 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-08-03   
857-319 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-09-01   
857-319 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-09-01   
857-319 4 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-09-01   
857-319 5 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-09-01   
857-319 6 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-09-01   
857-319 7 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-09-01   
857-319 8 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-08-15   
857-319 9 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-08-15   
857-321 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-321 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-05-06   
857-321 1 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-05-09   
857-321 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-06-02   
857-321 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-06-20   
857-321 4 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2011-06-09   
857-321 5 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2011-06-09   
857-321 6 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2011-06-09   
857-321 7   829J PAETEC ITEL, LLC 128   2011-06-23   
857-321 8 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2012-01-31   
857-321 9 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-06-26   
857-324 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-324 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-02-26   
857-324 1 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-02-26   
857-324 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-02-26   
857-324 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-02-26   
857-324 4 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-02-26   
857-324 5 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-02-26   
857-324 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-11-13   
857-324 7 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-02-26   
857-324 8 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-02-26   
857-324 9 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-02-26   
857-326 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-326 0 NRTNMAAACM4  5562 METROPCS, INC. 128   2020-06-06   
857-326 1 NRTNMAAACM4  5562 METROPCS, INC. 128   2018-11-07   
857-326 2 NRTNMAAACM4  5562 METROPCS, INC. 128   2018-11-07   
857-326 3 NRTNMAAACM4  5562 METROPCS, INC. 128   2018-11-07   
857-326 4 NRTNMAAACM4  5562 METROPCS, INC. 128   2018-11-07   
857-326 5 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2018-03-06   
857-326 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2018-03-06   
857-326 7 NRTNMAAACM4  5562 METROPCS, INC. 128   2018-11-07   
857-326 8 NRTNMAAACM4  5562 METROPCS, INC. 128   2018-11-07   
857-326 9 NRTNMAAACM4  5562 METROPCS, INC. 128   2020-06-06   
857-327 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-327 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-04-03   
857-327 1 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-04-03   
857-327 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-05-06   
857-327 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-05-06   
857-327 4   829J PAETEC ITEL, LLC 128   2015-04-27   
857-327 5 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-05-15   
857-327 6 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-04-04   
857-327 7 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-05-15   
857-327 8 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-05-15   
857-327 9 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-05-15   
857-328 A BSTPMALLXMD  597F VOIP INNOVATIONS, LLC 128      
857-328 0 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-05-18   
857-328 1 BSTPMALLXMD  597F VOIP INNOVATIONS, LLC 128   2019-08-16   
857-328 2 CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2019-08-17   
857-328 3 CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2019-08-17   
857-328 4 CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2019-08-17   
857-328 5 CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2019-08-17   
857-328 6 CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2019-08-17   
857-328 7 CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2019-08-17   
857-328 8 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-05-18   
857-328 9 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-05-18   
857-329 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-329 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-02   
857-329 1 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-02   
857-329 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-02   
857-329 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-02   
857-329 4 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-02   
857-329 5 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-02   
857-329 6 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-02   
857-329 7 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-02   
857-329 8 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-02   
857-329 9 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-02   
857-330 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-330 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-11-15   
857-330 1 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-11-15   
857-330 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-11-15   
857-330 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-07-08   
857-330 4 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-12-12   
857-330 5 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-12-12   
857-330 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-12-12   
857-330 7 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-02-01   
857-330 8 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-08-24   
857-330 9 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-08-24   
857-332 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-332 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-16   
857-332 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2018-11-14   
857-332 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-11-14   
857-332 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-11-14   
857-332 4 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-11-14   
857-332 5 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-11-14   

<< 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: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.