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: 519

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-519 A Gladwin MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344      
989-519 0 Gladwin MI   624H ONVOY SPECTRUM, LLC 344   2024-08-11   
989-519 2 Gladwin MI   543C ONVOY, LLCV - MI 344   2023-09-30   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.