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: 768

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-768 A Le Roy MI LROYMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-768 0 Le Roy MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2016-04-14   
231-768 1 Le Roy MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348   2005-02-11   
231-768 2 Le Roy MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2016-04-14   
231-768 3 Le Roy MI GDRPMIBLCM5  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2011-05-14   
231-768 4 Le Roy MI LROYMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-768 5 Le Roy MI LROYMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-768 6 Le Roy MI   508J CENTURYLINK COMMUNICATIONS LLC 348   2015-09-15   
231-768 7 Le Roy MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2013-03-18   
231-768 8 Le Roy MI GDRPMIBLY4X  0975 LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI 348   2004-02-03   
231-768 9 Le Roy MI BRSPMI096MD  145J TERRA NOVA TELECOM INC. 348   2021-01-19   

Last updated: Fri, 10 Sep 2021 12:38:21 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.