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.

Busby, MT

NPA-NXX BLOCK Switch OCN LATA Eff date Disc date
406-592 A BSBYMTXCRS1  2251 RANGE TELEPHONE COOPERATIVE, INC. 650    
406-592 0   682H COMMNET WIRELESS SUBCO, LLC 650 2016-01-10   
406-592 3   2251 RANGE TELEPHONE COOPERATIVE, INC. 650    
406-592 4   2251 RANGE TELEPHONE COOPERATIVE, INC. 650    
406-592 5   2251 RANGE TELEPHONE COOPERATIVE, INC. 650    
406-592 6   2251 RANGE TELEPHONE COOPERATIVE, INC. 650    
406-592 7   2251 RANGE TELEPHONE COOPERATIVE, INC. 650    
406-592 8   2251 RANGE TELEPHONE COOPERATIVE, INC. 650    
406-592 9   2251 RANGE TELEPHONE COOPERATIVE, INC. 650    

Last updated: Fri, 07 Sep 2018 02:13:12 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.