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: 746

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-746 A Cheboygan MI BRSPMI097MD  516J TON80 COMMUNICATIONS, LLC 348      
231-746 0 Cheboygan MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-746 2 Cheboygan MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-746 3 Cheboygan MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-746 4 Cheboygan MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-746 5 Cheboygan MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-746 7 Cheboygan MI BRSPMI097MD  516J TON80 COMMUNICATIONS, LLC 348      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.