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.

Winthrop, MA

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
617-207 A NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-207 0 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
617-207 1 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-207 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-207 3 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-207 4 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-207 5 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-207 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-207 7 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-207 8 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
617-207 9 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-329 A STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-329 0 CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128      
617-329 1 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-329 2 STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-329 3 CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
617-329 4 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
617-329 5 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-329 6 CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
617-329 7 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-329 8 STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-329 9 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-539 A WNTHMAMADS0  9102 VERIZON NEW ENGLAND INC. 128      
617-539 0 WNTHMAMADS0  9102 VERIZON NEW ENGLAND INC. 128      
617-539 1 WNTHMAMADS0  9102 VERIZON NEW ENGLAND INC. 128      
617-539 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-539 3 WNTHMAMADS0  9102 VERIZON NEW ENGLAND INC. 128      
617-539 4   145J TERRA NOVA TELECOM INC. 128      
617-539 5   145J TERRA NOVA TELECOM INC. 128      
617-539 6 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-539 7 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-539 8 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-539 9 WNTHMAMADS0  9102 VERIZON NEW ENGLAND INC. 128      
617-841 A BSTPMALLRMD  8345 GLOBAL CROSSING LOCAL SERVICES, INC. - MA 128      
617-841 0 BSTPMALLRMD  8345 GLOBAL CROSSING LOCAL SERVICES, INC. - MA 128      
617-841 1   145J TERRA NOVA TELECOM INC. 128      
617-841 2 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
617-841 3 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-841 4 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-841 5 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
617-841 6   145J TERRA NOVA TELECOM INC. 128      
617-841 7 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-841 8 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-841 9 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
617-846 A WNTHMAMADS0  9102 VERIZON NEW ENGLAND INC. 128      
857-201 A   5562 METROPCS, INC. 128      
857-201 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-201 1 NRTNMAAACM4  5562 METROPCS, INC. 128      
857-201 2 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-201 3 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-201 4 BSTPMALLOMD  073H TELNYX LLC 128      
857-201 5 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-201 6 NRTNMAAACM4  5562 METROPCS, INC. 128      
857-201 7 BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128      
857-201 8   515J IP HORIZON LLC 128      
857-201 9   5562 METROPCS, INC. 128      
857-336 A BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-336 0 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-336 1 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-336 2 CMBRMABEQMD  321J HD CARRIER LLC 128      
857-336 3 CMBRMABEQMD  321J HD CARRIER LLC 128      
857-336 4 CMBRMABEQMD  321J HD CARRIER LLC 128      
857-336 5 CMBRMABEQMD  321J HD CARRIER LLC 128      
857-336 6 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-336 8   515J IP HORIZON LLC 128      
857-336 9   321J HD CARRIER LLC 128      
857-349 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-349 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-349 1 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
857-349 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-349 4 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-349 5 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-349 6 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-349 7 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-349 8 BSTPMALLOMD  073H TELNYX LLC 128      
857-349 9 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-597 A BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-597 0 BSTPMALLOMD  073H TELNYX LLC 128      
857-597 1 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-597 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-597 3 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-597 4   145J TERRA NOVA TELECOM INC. 128      
857-597 5 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-597 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-597 7 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-597 8 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-597 9 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
857-816 A CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-816 0 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-816 1 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-816 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-816 3 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-816 4 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-816 5 CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
857-816 6 WRCSMA02DS1  7135 TC SYSTEMS, INC. 128      
857-816 7 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-816 8 BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-816 9 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-833 A   624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-833 7   624H ONVOY SPECTRUM, LLC 128      

1 2 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.