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: 870 [Rate centres in NPA 870] [Dial plan for NPA 870]

NXX: 580

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
870-580 A Mountain Home AR RLVLARXANMD  048G TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 528      
870-580 0 Mountain Home AR RLVLARXANMD  048G TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 528      
870-580 1 Mountain Home AR RLVLARXANMD  048G TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 528      
870-580 5 Mountain Home AR LTRKARWTBMD  5179 LEVEL 3 COMMUNICATIONS, LLC - AR 528   2018-12-14   
870-580 6 Mountain Home AR LTRKARFRXPY  802C TELEPORT COMMUNICATIONS AMERICA, LLC - AR 528   2019-09-16   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.