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: 351

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-351 A Boston MA BSTNMABEDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-351 0 Boston MA BSTNMABEDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-351 1 Boston MA BSTNMABEDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-351 2 Boston MA BSTNMABEDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-351 3 Boston MA BSTNMABEDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-351 4 Boston MA BSTNMABEDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-351 5 Boston MA BSTNMABEDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-351 6 Boston MA BSTNMABEDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-351 7 Boston MA BSTNMABEDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-351 8 Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-351 9 Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.