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Cambridge, MA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
617-460 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-460 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-460 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-460 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-460 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-460 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-460 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-460 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-460 8   624H ONVOY SPECTRUM, LLC 128   2024-12-06   
617-460 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-465 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-465 0   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-465 1   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-465 2   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-465 3   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-465 4   624H ONVOY SPECTRUM, LLC 128   2021-11-06   
617-465 5   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-465 6   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-465 7   624H ONVOY SPECTRUM, LLC 128   2021-11-06   
617-465 8   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-465 9   939H COMMIO, LLC 128   2021-07-15   
617-468 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-468 0   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-468 1   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-468 2   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-468 3   892D ONVOY, LLC - MA 128   2020-03-25   
617-468 4   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-468 5   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-468 6   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-468 7   892D ONVOY, LLC - MA 128   2020-03-25   
617-468 8   990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-468 9   939H COMMIO, LLC 128   2021-07-15   
617-475 A CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-475 0   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-03-24   
617-475 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-475 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-475 3   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-11-18   
617-475 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-475 5   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-10-11   
617-475 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-475 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-475 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-475 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-491 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-492 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-493 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-494 A CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-495 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-496 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-497 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-498 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-499 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-500 A CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-500 0   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-10-19   
617-500 1   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-03-04   
617-500 2   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-02-25   
617-500 3   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-05-23   
617-500 4   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-500 5   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-10-25   
617-500 6   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-03-04   
617-500 7   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-05-16   
617-500 8   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-03-04   
617-500 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-09-26   
617-503 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-503 0   145J TERRA NOVA TELECOM INC. 128   2022-05-05   
617-503 1   9102 VERIZON NEW ENGLAND INC. 128      
617-503 2   9102 VERIZON NEW ENGLAND INC. 128      
617-503 3   9102 VERIZON NEW ENGLAND INC. 128      
617-503 4   9102 VERIZON NEW ENGLAND INC. 128      
617-503 5   9102 VERIZON NEW ENGLAND INC. 128      
617-503 6   9102 VERIZON NEW ENGLAND INC. 128      
617-503 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-12-30   
617-503 8   9102 VERIZON NEW ENGLAND INC. 128      
617-503 9   9102 VERIZON NEW ENGLAND INC. 128      
617-520 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-520 0   9102 VERIZON NEW ENGLAND INC. 128      
617-520 1   9102 VERIZON NEW ENGLAND INC. 128      
617-520 2   9102 VERIZON NEW ENGLAND INC. 128      
617-520 3   9102 VERIZON NEW ENGLAND INC. 128      
617-520 4   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-03-24   
617-520 5   9102 VERIZON NEW ENGLAND INC. 128      
617-520 6   9102 VERIZON NEW ENGLAND INC. 128      
617-520 7   9102 VERIZON NEW ENGLAND INC. 128      
617-520 8   9102 VERIZON NEW ENGLAND INC. 128      
617-520 9   9102 VERIZON NEW ENGLAND INC. 128      
617-528 A CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-528 0   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-03-04   
617-528 1   7135 TC SYSTEMS, INC. 128      
617-528 2   7135 TC SYSTEMS, INC. 128      
617-528 3   7135 TC SYSTEMS, INC. 128      
617-528 4   7135 TC SYSTEMS, INC. 128      
617-528 5   7135 TC SYSTEMS, INC. 128      
617-528 6   7135 TC SYSTEMS, INC. 128      
617-528 7   7135 TC SYSTEMS, INC. 128      
617-528 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-11-11   
617-528 9   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-03-04   
617-540 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-540 0   892D ONVOY, LLC - MA 128   2021-08-14   
617-540 1   624H ONVOY SPECTRUM, LLC 128   2020-07-06   
617-540 2   624H ONVOY SPECTRUM, LLC 128   2020-07-06   

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Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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