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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
617-252 7 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-252 8 CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128      
617-252 9 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-253 A CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-256 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
617-256 0 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-256 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-256 2 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-256 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-256 4 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-256 5 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-256 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-256 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-256 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-256 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-258 A CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-280 A WOBNMADW2MD  174A NEP, LLC 128      
617-290 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
617-290 0 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 2 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 4 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 5 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-299 A CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
617-299 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-299 1 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-299 2 CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
617-299 3 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-299 4 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-299 5 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
617-299 6 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-299 7 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-299 8 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-299 9 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-300 A FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-300 0 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-300 1 FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-300 2 FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-300 3 FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-300 4 FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-300 5 FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-300 6 FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-300 7 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
617-300 8 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-300 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-301 A CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-301 0 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-301 1 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-301 2 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-301 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-301 4 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
617-301 5 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-301 6 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-301 7 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
617-301 8 BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
617-301 9 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-308 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
617-308 0 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 2 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 4 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 5 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-324 A CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-324 0 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-324 1 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-324 2 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-324 3 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-324 4 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-324 5 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-324 6 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-324 7 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-324 8 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-324 9 CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-335 A CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-339 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-349 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-354 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      
617-359 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
617-359 0 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-359 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-359 2 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-359 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-359 4 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-359 5 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-359 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-359 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-359 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-359 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-374 A CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-384 A CMBRMAWADS2  9102 VERIZON NEW ENGLAND INC. 128      

<< 1 2 3 4 5 6 7 8 9 10 11 >>

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.