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: 376

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-376 A Atlanta MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344      
989-376 0 Atlanta MI SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2021-08-27   
989-376 1 Atlanta MI OWTPMI020MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 344   2022-06-19   
989-376 2 Atlanta MI ALMAMIXGOMD  624H ONVOY SPECTRUM, LLC 344   2023-05-30   
989-376 6 Atlanta MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2021-08-26   
989-376 8 Atlanta MI ALMAMIXGFMD  543C ONVOY, LLCV - MI 344   2023-08-26   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.