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: 892

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-892 A Boston MA CMBRMAORDS0  7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-892 0 Boston MA   6664 SPRINT SPECTRUM L.P. 128   2003-08-20   
617-892 1 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2013-12-09   
617-892 2 Boston MA   6664 SPRINT SPECTRUM L.P. 128   2003-08-20   
617-892 3 Boston MA   6664 SPRINT SPECTRUM L.P. 128   2003-08-20   
617-892 4 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2003-01-12   
617-892 5 Boston MA   6664 SPRINT SPECTRUM L.P. 128   2003-08-20   
617-892 6 Boston MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-892 7 Boston MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-892 8 Boston MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-892 9 Boston MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.