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: 781 [Rate centres in NPA 781] [Dial plan for NPA 781]

NXX: 317

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-317 A Waltham MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-317 0 Waltham MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-317 1 Waltham MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-317 2 Waltham MA CMBRMA01MMD  5562 METROPCS, INC. 128      
781-317 3 Waltham MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
781-317 4 Waltham MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-317 5 Waltham MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-317 6 Waltham MA   892D ONVOY, LLC - MA 128      
781-317 7 Waltham MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
781-317 8 Waltham MA SOVLMAAB6MD  939H COMMIO, LLC 128      
781-317 9 Waltham MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 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.