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: 263

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-263 A Boston MA BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-263 0 Boston MA BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-263 1 Boston MA BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-263 2 Boston MA BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-263 3 Boston MA BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-263 4 Boston MA BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-263 5 Boston MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
617-263 6 Boston MA BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-263 7 Boston MA BSTNMABODS9  9102 VERIZON NEW ENGLAND INC. 128      
617-263 8 Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-263 9 Boston MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.