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: 241

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-241 A Pentwater MI MSKGMIXKFMD  691A DAYSTARR, LLC DBA DAYSTARR COMMUNICATIONS - MI 348      
231-241 0 Pentwater MI MSKGMIXKFMD  691A DAYSTARR, LLC DBA DAYSTARR COMMUNICATIONS - MI 348   2006-12-10   
231-241 1 Pentwater MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2013-03-18   
231-241 2 Pentwater MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2017-05-26   
231-241 3 Pentwater MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-10   
231-241 4 Pentwater MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-10   
231-241 5 Pentwater MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-10   
231-241 6 Pentwater MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-10   
231-241 7 Pentwater MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348   2017-10-05   
231-241 8 Pentwater MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-09-12   
231-241 9 Pentwater MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-09-12   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.