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.

NPA: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 345

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-345 A Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 0 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 1 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 2 Boston MA CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
617-345 3 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 4 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 5 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 6 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 7 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 8 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 9 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.