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: EBSTMASADS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
617-455 3 East Boston MA 9102 VERIZON NEW ENGLAND INC. 128   2006-02-01   
617-561 A East Boston MA 9102 VERIZON NEW ENGLAND INC. 128      
617-567 A East Boston MA 9102 VERIZON NEW ENGLAND INC. 128      
617-568 A East Boston MA 9102 VERIZON NEW ENGLAND INC. 128      
617-569 A East Boston MA 9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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