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: 353

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-353 A Chester MI   792K CHARTER IP ENABLED SERVICES, LLC 344      
989-353 0 Chester MI   792K CHARTER IP ENABLED SERVICES, LLC 344   2020-09-03   
989-353 3 Chester MI   145J TERRA NOVA TELECOM INC. 344   2025-05-28   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.