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.

NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

<< 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 31 32 33 34 35 36 37 38 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-249 0 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-249 1 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-249 2 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-249 3 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-06-29   
857-249 4 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-06-29   
857-249 5 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-06-29   
857-249 6 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-06-29   
857-249 7 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-06-29   
857-249 8 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-06-29   
857-249 9 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-06-29   
857-250 A Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-250 0 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2012-05-22   
857-250 1 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2012-08-16   
857-250 2 Boston MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2012-06-12   
857-250 3 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-06-29   
857-250 4 Boston MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2012-07-15   
857-250 5 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2011-09-05   
857-250 6 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2011-09-05   
857-250 7 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2011-09-05   
857-250 8 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2011-09-05   
857-250 9 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2011-09-05   
857-251 A Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-251 0 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-251 1 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-251 2 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-251 3 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-251 4 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-251 5 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-251 6 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-251 7 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-251 8 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-251 9 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-01   
857-252 A Quincy MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-252 0 Quincy MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-252 1 Quincy MA CMBRMABEZMD  756G WIDE VOICE, LLC - MA 128   2016-09-03   
857-252 2 Quincy MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-252 3 Quincy MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-252 4 Quincy MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-252 5 Quincy MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-252 6 Quincy MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-252 7 Quincy MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-252 8 Quincy MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-252 9 Quincy MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-253 A Cambridge MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-253 0 Cambridge MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-253 1 Cambridge MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-09-09   
857-253 2 Cambridge MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-253 3 Cambridge MA SOVLMAAB6MD  939H COMMIO, LLC 128   2024-03-04   
857-253 4 Cambridge MA SOVLMAAB6MD  939H COMMIO, LLC 128   2024-03-04   
857-253 5 Cambridge MA SOVLMAAB6MD  939H COMMIO, LLC 128   2024-03-04   
857-253 6 Cambridge MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-12-30   
857-253 7 Cambridge MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-12-30   
857-253 8 Cambridge MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-08-04   
857-253 9 Cambridge MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
857-254 A Boston MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-254 0 Boston MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-254 1 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-11-28   
857-254 2 Boston MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-254 3 Boston MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-254 4 Boston MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-254 5 Boston MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-254 6 Boston MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-254 7 Boston MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-254 8 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-11-28   
857-254 9 Boston MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128   2005-11-28   
857-255 A Newton MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-255 0 Newton MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-255 1 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2012-06-01   
857-255 2 Newton MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-255 3 Newton MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-255 4 Newton MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-255 5 Newton MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-255 6 Newton MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-255 7 Newton MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-255 8 Newton MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-255 9 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2012-06-01   
857-256 A East Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
857-256 0 East Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-02-17   
857-256 1 East Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-02-17   
857-256 2 East Boston MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2013-10-12   
857-256 3 East Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-02-27   
857-256 4 East Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-05-15   
857-256 5 East Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-02-27   
857-256 6 East Boston MA CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-11   
857-256 7 East Boston MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2014-04-24   
857-256 8 East Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   
857-256 9 East Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   
857-257 A South Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-257 0 South Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-257 8 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2024-03-07   
857-258 A Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-258 0 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2010-08-27   
857-258 1 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2010-08-27   
857-258 2 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2010-08-27   
857-258 3 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2010-08-27   
857-258 4 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2010-08-27   
857-258 5 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2010-08-27   
857-258 6 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2010-08-27   
857-258 7 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2010-08-27   
857-258 8 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2010-08-27   

<< 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 31 32 33 34 35 36 37 38 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.