Local Calling Guide

Area code/prefix search

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Cambridge, MA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
508-878 A CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-201 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
617-201 0   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 1   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 2   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 3   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 4   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 5   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 6   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 7   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 8   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 9   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
617-216 0   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 1   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 2   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 3   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 4   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 5   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 6   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 7   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 8   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 9   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-218 A CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-218 0   7135 TC SYSTEMS, INC. 128      
617-218 1   7135 TC SYSTEMS, INC. 128      
617-218 2   7135 TC SYSTEMS, INC. 128      
617-218 3   7135 TC SYSTEMS, INC. 128      
617-218 4   7135 TC SYSTEMS, INC. 128      
617-218 5   7135 TC SYSTEMS, INC. 128      
617-218 6   7135 TC SYSTEMS, INC. 128      
617-218 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2003-07-27   
617-218 8   7135 TC SYSTEMS, INC. 128      
617-218 9   7135 TC SYSTEMS, INC. 128      
617-225 A CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-229 A CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 5   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-08   
617-229 6   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-08   
617-229 7   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-08   
617-229 8   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-02-19   
617-229 9   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-04-24   
617-230 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-233 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
617-233 0   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-233 1   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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