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.

Kingsley, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
231-263 A KGSLMIXIDS0  0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 0   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 1   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 2   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 3   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 4   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 5   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 6   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 7   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 8   792K CHARTER IP ENABLED SERVICES, LLC 348   2013-03-13   
231-263 9   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2016-08-06   
231-272 A GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-272 0   543C ONVOY, LLCV - MI 348   2021-03-27   
231-272 1   543C ONVOY, LLCV - MI 348   2021-03-27   
231-272 2   543C ONVOY, LLCV - MI 348   2019-10-10   
231-272 3   543C ONVOY, LLCV - MI 348   2020-05-09   
231-272 4   543C ONVOY, LLCV - MI 348   2020-05-09   
231-272 5   543C ONVOY, LLCV - MI 348   2020-05-09   
231-272 6   543C ONVOY, LLCV - MI 348   2020-05-09   
231-272 7   543C ONVOY, LLCV - MI 348   2020-09-12   
231-272 8   543C ONVOY, LLCV - MI 348   2020-09-12   
231-272 9   624H ONVOY SPECTRUM, LLC 348   2021-06-19   
231-297 A GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-297 0   543C ONVOY, LLCV - MI 348   2023-04-06   
231-297 1   624H ONVOY SPECTRUM, LLC 348   2021-12-03   
231-297 3   624H ONVOY SPECTRUM, LLC 348   2021-12-03   
231-297 4   543C ONVOY, LLCV - MI 348   2022-04-17   
231-297 5   543C ONVOY, LLCV - MI 348   2022-12-19   
231-297 6   543C ONVOY, LLCV - MI 348   2023-08-12   
231-297 7   543C ONVOY, LLCV - MI 348   2021-08-26   
231-297 8   543C ONVOY, LLCV - MI 348   2021-08-26   
231-297 9   543C ONVOY, LLCV - MI 348   2023-07-08   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.