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: 290

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
870-290 A Delight AR LTRKARWTBMD  5179 LEVEL 3 COMMUNICATIONS, LLC - AR 528      
870-290 0 Delight AR   348F ONVOY, LLC - AR 528   2023-08-18   
870-290 1 Delight AR   624H ONVOY SPECTRUM, LLC 528   2025-01-07   
870-290 2 Delight AR   5179 LEVEL 3 COMMUNICATIONS, LLC - AR 528   2017-10-28   
870-290 3 Delight AR   348F ONVOY, LLC - AR 528   2021-12-02   
870-290 4 Delight AR   348F ONVOY, LLC - AR 528   2022-11-28   
870-290 6 Delight AR   802C TELEPORT COMMUNICATIONS AMERICA, LLC - AR 528   2020-11-13   
870-290 7 Delight AR   348F ONVOY, LLC - AR 528   2021-06-25   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.