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: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 791

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-791 A Reed City MI GDRPMIBL54Z  0975 LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI 348      
231-791 0 Reed City MI GDRPMIBL54Z  0975 LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI 348      
231-791 2 Reed City MI GDRPMIBL54Z  0975 LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI 348   2004-02-12   
231-791 3 Reed City MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2016-03-22   
231-791 4 Reed City MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2016-03-22   
231-791 5 Reed City MI MSKGMIXKFMD  691A DAYSTARR, LLC DBA DAYSTARR COMMUNICATIONS - MI 348   2014-07-15   
231-791 7 Reed City MI GDRPMIBLX8Z  2550 123.NET, INC. 348   2009-02-27   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.