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.

Concord, MA

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
978-202 A CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-202 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-202 1 FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128      
978-202 2 NRTNMAAACM4  5562 METROPCS, INC. 128      
978-202 3 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-202 4 CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
978-202 5 CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128      
978-202 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
978-202 7 CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128      
978-202 8 NRTNMAAACM4  5562 METROPCS, INC. 128      
978-202 9 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-245 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-245 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-245 1 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-245 2 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-245 3 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-245 4 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-245 5 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-245 6 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-245 7 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-245 8 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-245 9 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
978-254 A CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
978-254 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-254 1 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-254 2 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-254 3 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-254 4 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-254 5 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
978-254 6 CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
978-254 7 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-254 8 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
978-254 9 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
978-280 A CNCRMAWADS0  9102 VERIZON NEW ENGLAND INC. 128      
978-287 A CNCRMAWADS0  9102 VERIZON NEW ENGLAND INC. 128      
978-316 A BSTNMABLOMD  9748 AMERICAN MESSAGING SERVICES, LLC 128      
978-318 A CNCRMAWADS0  9102 VERIZON NEW ENGLAND INC. 128      
978-341 A   145J TERRA NOVA TELECOM INC. 128      
978-341 0 SOVLMAABBMD  145J TERRA NOVA TELECOM INC. 128      
978-341 1   145J TERRA NOVA TELECOM INC. 128      
978-341 2 FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128      
978-341 3 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
978-341 4 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-341 5 CHTWMABF2MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128      
978-341 6   145J TERRA NOVA TELECOM INC. 128      
978-341 8 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
978-341 9 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
978-369 A CNCRMAWADS0  9102 VERIZON NEW ENGLAND INC. 128      
978-371 A CNCRMAWADS0  9102 VERIZON NEW ENGLAND INC. 128      
978-402 A MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-402 0 MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-402 1 MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-402 2 MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-402 3 MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-402 4 CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128      
978-402 5 CMBSMA01GT3  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
978-402 6 CMBSMA01GT3  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
978-402 7 BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128      
978-402 8 FRMNMAUNX0X  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
978-405 A BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
978-405 0 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
978-405 1 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
978-405 2 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
978-405 3 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
978-405 4 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-405 5 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
978-405 6 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
978-405 7 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
978-405 8   515J IP HORIZON LLC 128      
978-405 9 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
978-451 A CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-451 0 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-451 1 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
978-451 3 CNCRMAWADS0  9102 VERIZON NEW ENGLAND INC. 128      
978-451 4 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-451 5 SOVLMAABDMD  490J DISH WIRELESS, LLC 128      
978-451 6 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-451 7 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-451 8   515J IP HORIZON LLC 128      
978-451 9 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
978-472 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-472 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-472 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
978-472 4 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-472 5 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-472 9 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-505 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-505 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-505 1 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-505 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-505 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-505 4 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-505 5 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-505 6 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-505 7 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-505 8 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-505 9 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-576 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-576 5 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
978-580 A NRTNMAAACM4  5562 METROPCS, INC. 128      

1 2 >>

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.