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.

Switch: SXFLSDCOXXX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
605-709 A Harrisburg-Tea SD 495J STRATUS NETWORKS 640      
605-709 1 Harrisburg-Tea SD 495J STRATUS NETWORKS 640   2021-05-16   
605-981 1 Rapid City SD 495J STRATUS NETWORKS 640   2021-06-26   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.