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.
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Switch: CHLSMACHDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
617-634 A East Boston MA 9102 VERIZON NEW ENGLAND INC. 128      
617-634 1 East Boston MA 9102 VERIZON NEW ENGLAND INC. 128      
617-634 7 East Boston MA 9102 VERIZON NEW ENGLAND INC. 128      
617-660 A Chelsea MA 9102 VERIZON NEW ENGLAND INC. 128      
617-884 A Chelsea MA 9102 VERIZON NEW ENGLAND INC. 128      
617-887 A Chelsea MA 9102 VERIZON NEW ENGLAND INC. 128      
617-889 A Chelsea MA 9102 VERIZON NEW ENGLAND INC. 128      
857-323 A Chelsea MA 9102 VERIZON NEW ENGLAND INC. 128      
857-323 8 Chelsea MA 9102 VERIZON NEW ENGLAND INC. 128   2013-03-15   
857-386 A Chelsea MA 9102 VERIZON NEW ENGLAND INC. 128      
857-386 2 Chelsea MA 9102 VERIZON NEW ENGLAND INC. 128   2016-09-03   
857-386 3 Chelsea MA 9102 VERIZON NEW ENGLAND INC. 128   2016-09-03   

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

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