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: 989 [Rate centres in NPA 989] [Dial plan for NPA 989]

NXX: 983

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-983 A Vanderbilt MI VNDRMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-983 2 Vanderbilt MI VNDRMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-983 3 Vanderbilt MI VNDRMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-983 4 Vanderbilt MI VNDRMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-983 5 Vanderbilt MI ALPEMIXG9MD  116F PENINSULA FIBER NETWORK, LLC - MI 344   2023-07-09   
989-983 9 Vanderbilt MI VNDRMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.