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      
617-252 0 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-252 1 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-252 2 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-252 3 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-252 4 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-252 5 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-252 6 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-252 7 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-252 9 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      
617-324 0 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-09-08   
617-324 1 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-09-08   
617-324 2 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-09-08   
617-324 3 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-09-08   
617-324 4 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-09-08   
617-324 5 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-09-08   
617-324 6 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-09-08   
617-324 7 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-09-08   
617-324 8 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-09-08   
617-324 9 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-09-08   
617-374 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-444 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-444 0 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-444 1 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-444 2 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-444 3 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-444 4 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-444 5 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-444 8 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      
617-583 4 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 0 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 1 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 2 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 3 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 5 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 6 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 7 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 8 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-621 9 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-679 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-682 3 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 0 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 1 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 2 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 3 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 4 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 5 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 6 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 8 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-761 9 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 0 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 1 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 2 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 3 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 4 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 5 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 6 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 8 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-768 9 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-866 A Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-866 4 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-866 6 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128      
617-871 3 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-11-25   
617-871 4 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-11-19   
617-871 5 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-11-19   
617-871 7 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-11-19   
617-871 8 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2002-11-19   
857-235 0 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2009-01-02   
857-235 1 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2009-01-02   
857-235 2 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2009-01-02   
857-235 3 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2009-01-02   
857-235 4 Cambridge MA 9102 VERIZON NEW ENGLAND INC. 128   2009-01-02   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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