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: 903

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-903 A Brighton MA   829J PAETEC ITEL, LLC 128      
617-903 0 Brighton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
617-903 1 Brighton MA   829J PAETEC ITEL, LLC 128   2002-10-13   
617-903 2 Brighton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2005-10-03   
617-903 3 Brighton MA   318J COMCAST IP PHONE, LLC 128   2006-11-02   
617-903 4 Brighton MA   318J COMCAST IP PHONE, LLC 128   2006-11-02   
617-903 5 Brighton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-27   
617-903 6 Brighton MA   829J PAETEC ITEL, LLC 128      
617-903 7 Brighton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-18   
617-903 8 Brighton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-18   
617-903 9 Brighton MA   829J PAETEC ITEL, LLC 128      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.