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.

Cambridge, MA

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
508-878 A CMBSMA01GT4  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 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 2 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 4 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 5 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-201 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
617-216 0 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 2 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 4 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 5 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-216 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-218 A CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-218 0 CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-218 1 CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-218 2 CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-218 3 CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-218 4 CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-218 5 CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-218 6 CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-218 7 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2003-07-27   
617-218 8 CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-218 9 CMBRMA01DS5  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 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 1 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 2 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 3 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 4 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-229 5 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-08   
617-229 6 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-08   
617-229 7 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-08   
617-229 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-02-19   
617-229 9 NRTNMAAACM4  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 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-233 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.