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
857-295 5 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-295 6 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-295 7 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-295 8 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-295 9 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-296 A Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-296 0 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-296 1 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-296 2 Boston MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-296 3 Boston MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-296 4 Boston MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-296 5 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-296 6 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-296 7 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-296 8 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-296 9 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-297 A Newton MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-297 0 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-297 1 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-297 2 Newton MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-297 3 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-297 4 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-297 5 Newton MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-297 6 Newton MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-297 7 Newton MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-297 8 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-297 9 Newton MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
857-298 A Cambridge MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-298 0 Cambridge MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-298 1 Cambridge MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-298 2 Cambridge MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-298 3 Cambridge MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-298 4 Cambridge MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-298 5 Cambridge MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-298 6 Cambridge MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-298 7 Cambridge MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-298 8 Cambridge MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-298 9 Cambridge MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-299 A Belmont MA   892D ONVOY, LLC - MA 128      
857-299 0 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-299 1 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-299 2 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-299 3 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-299 4 Belmont MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-299 5 Belmont MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-299 6 Belmont MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-299 7 Belmont MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-299 8 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-299 9 Belmont MA   624H ONVOY SPECTRUM, LLC 128      
857-300 A Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-300 0 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-300 1 Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-300 2 Boston MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-300 3 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-300 4 Boston MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-300 5 Boston MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-300 6 Boston MA CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
857-300 7 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-300 8 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-300 9 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-301 A Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-301 0 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-301 1 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-301 2 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-301 3 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-301 4 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-301 5 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-301 6 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-301 7 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-301 8 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-301 9 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-302 A Boston MA CMBSMA013MD  428H AIRUS, INC. - MA 128      
857-302 0 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-302 1 Boston MA CMBSMA013MD  428H AIRUS, INC. - MA 128      
857-302 2 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-302 3 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-302 4 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-302 5 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-302 6 Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
857-302 7 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-302 8 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-302 9 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-303 A Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 0 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 1 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 2 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 3 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 4 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 5 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 6 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 7 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 8 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-303 9 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-304 A Watertown MA CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
857-304 0 Watertown MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-304 1 Watertown MA   515J IP HORIZON LLC 128      
857-304 2 Watertown MA WSBOMAGO0MD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-304 3 Watertown MA CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
857-304 4 Watertown MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-304 5 Watertown MA CMBRMA01DS5  7135 TC SYSTEMS, 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 31 32 33 34 35 36 37 38 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.