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.

Switch: CMBRMABEDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
617-225 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-252 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-253 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-258 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-324 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-374 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-444 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-452 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-494 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-551 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-577 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-679 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-693 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-866 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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