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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-870 A Brighton MA CMBRMAAWRS0  8924 BROADWING COMMUNICATIONS, LLC - MA 128      
617-870 0 Brighton MA   892D ONVOY, LLC - MA 128   2014-09-19   
617-870 1 Brighton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2014-11-08   
617-870 2 Brighton MA   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-12-17   
617-870 3 Brighton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-09-10   
617-870 4 Brighton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-01-02   
617-870 5 Brighton MA   8924 BROADWING COMMUNICATIONS, LLC - MA 128      
617-870 6 Brighton MA   892D ONVOY, LLC - MA 128   2014-09-19   
617-870 7 Brighton MA   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128   2013-10-12   
617-870 8 Brighton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2014-08-09   
617-870 9 Brighton MA   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-12-17   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.