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.

Charlestown, MA

1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
617-241 A BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-242 A BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-286 A CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128      
617-286 0 CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128      
617-286 1 CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128      
617-286 2 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-286 3 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-286 4 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-286 5 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-286 6 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-286 7 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-286 8 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
617-286 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-337 A STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-337 0 STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-337 1 STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-337 2 CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
617-337 3 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-337 4 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
617-337 5 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-337 6   145J TERRA NOVA TELECOM INC. 128      
617-337 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-337 8 STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-337 9 CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
617-380 A BSTPMALLRMD  8345 GLOBAL CROSSING LOCAL SERVICES, INC. - MA 128      
617-380 0 BSTPMALLRMD  8345 GLOBAL CROSSING LOCAL SERVICES, INC. - MA 128      
617-380 1 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-380 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-380 3 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-380 4 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-380 5 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-380 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-380 7 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-380 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-380 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-398 A FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-398 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-398 1 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
617-398 2 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
617-398 3 CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128      
617-398 4 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-398 5 CHTWMABF2MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128      
617-398 6 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-398 7 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-398 8   515J IP HORIZON LLC 128      
617-398 9 FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-518 A BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-518 0 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-518 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-518 2 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
617-518 3 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
617-518 4 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-518 5 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-518 6 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
617-518 7 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
617-518 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-518 9 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
617-580 A CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-580 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-580 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-580 2 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-580 3 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-580 4 BSTNMACODS2  7135 TC SYSTEMS, INC. 128      
617-580 5 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-580 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-580 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-580 8 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-580 9 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-669 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-681 A CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-681 0 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-681 1 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-681 2 CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128      
617-681 3 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-681 4 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-681 5 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-681 6 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-681 7 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-681 8 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-681 9 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-712 A CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
617-712 0 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-712 1 CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
617-712 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-712 3 CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
617-712 4   316E YMAX COMMUNICATIONS CORP. - MA 128      
617-712 5 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-712 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-712 7 BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128      
617-712 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-712 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-886 A BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-952 A CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
617-952 0 CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
617-952 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-952 2 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-952 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-952 4   515J IP HORIZON LLC 128      
617-952 5 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
617-952 6 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      

1 2 3 >>

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.