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: 235

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-235 A Crystal MI CRYSMIXIDS0  0702 BRIGHTSPEED OF MICHIGAN, LLC 344      
989-235 0 Crystal MI   145J TERRA NOVA TELECOM INC. 344   2025-06-06   
989-235 1 Crystal MI CRYSMIXIDS0  0702 BRIGHTSPEED OF MICHIGAN, LLC 344      
989-235 2 Crystal MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2023-03-12   
989-235 3 Crystal MI CRYSMIXIDS0  0702 BRIGHTSPEED OF MICHIGAN, LLC 344      
989-235 4 Crystal MI CRYSMIXIDS0  0702 BRIGHTSPEED OF MICHIGAN, LLC 344      
989-235 5 Crystal MI CRYSMIXIDS0  0702 BRIGHTSPEED OF MICHIGAN, LLC 344      
989-235 6 Crystal MI CRYSMIXIDS0  0702 BRIGHTSPEED OF MICHIGAN, LLC 344      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.