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: NRBOMASCRS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
508-351 A Northboro MA 9102 VERIZON NEW ENGLAND INC. 128      
508-351 1 Northboro MA 9102 VERIZON NEW ENGLAND INC. 128      
508-351 2 Northboro MA 9102 VERIZON NEW ENGLAND INC. 128      
508-351 3 Northboro MA 9102 VERIZON NEW ENGLAND INC. 128      
508-351 4 Northboro MA 9102 VERIZON NEW ENGLAND INC. 128      
508-351 6 Northboro MA 9102 VERIZON NEW ENGLAND INC. 128      
508-351 7 Northboro MA 9102 VERIZON NEW ENGLAND INC. 128      
508-351 8 Northboro MA 9102 VERIZON NEW ENGLAND INC. 128      
508-351 9 Northboro MA 9102 VERIZON NEW ENGLAND INC. 128      
508-393 A Northboro MA 9102 VERIZON NEW ENGLAND INC. 128      

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

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