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Belmont, MA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
617-209 A STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-209 0   7619 RCN TELECOM SERVICES, INC. - MA 128      
617-209 1 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-14   
617-209 2 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-03-25   
617-209 3 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-04   
617-209 4 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-01   
617-209 5 CHTWMABF2MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2005-04-10   
617-209 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2017-05-27   
617-209 7 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2006-11-10   
617-209 8 STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-209 9 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-08-13   
617-484 A BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-486 A BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-489 A BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-826 A   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-826 0 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-826 1 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-01   
617-826 2 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-826 3   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-826 4 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2024-12-06   
617-826 5   829J PAETEC ITEL, LLC 128   2005-07-13   
617-826 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2006-06-09   
617-826 7 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-826 8 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-03-25   
617-826 9 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
617-855 A BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-855 0 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-02-25   
617-855 1 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-02-25   
617-855 2 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-855 3 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-855 4 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-855 5 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-19   
617-855 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-04-07   
617-855 7 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-10-21   
617-855 8 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-03-19   
617-855 9 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-27   
617-883 A BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-883 0 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-883 1 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-883 2 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-883 3 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-883 4 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-883 5 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-883 6 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-883 7   145J TERRA NOVA TELECOM INC. 128   2020-11-20   
617-883 8 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-883 9 BLMTMALERP0  9102 VERIZON NEW ENGLAND INC. 128      
617-932 A CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-932 0   515J IP HORIZON LLC 128   2016-07-01   
617-932 1 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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