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: 558

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
870-558 A Jonesboro AR LTRKARGGX4Y  732J NUSO, LLC 528      
870-558 0 Jonesboro AR   578H AIRUS, INC. - AR 528   2023-05-05   
870-558 1 Jonesboro AR   732J NUSO, LLC 528   2023-03-30   
870-558 2 Jonesboro AR   5179 LEVEL 3 COMMUNICATIONS, LLC - AR 528   2020-07-03   
870-558 4 Jonesboro AR   073H TELNYX LLC 528   2022-09-24   
870-558 5 Jonesboro AR   348F ONVOY, LLC - AR 528   2020-10-17   
870-558 6 Jonesboro AR   348F ONVOY, LLC - AR 528   2020-10-17   
870-558 7 Jonesboro AR   490J DISH WIRELESS, LLC 528   2023-07-09   
870-558 8 Jonesboro AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2020-05-23   
870-558 9 Jonesboro AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2020-05-23   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.