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: 501 [Rate centres in NPA 501] [Dial plan for NPA 501]

NXX: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
501-597 A Hot Springs AR   515J IP HORIZON LLC 528   2026-07-31   
501-597 0 Hot Springs AR   348F ONVOY, LLC - AR 528   2026-09-17   
501-597 1 Hot Springs AR   515J IP HORIZON LLC 528   2026-07-31   
501-597 2 Hot Springs AR   515J IP HORIZON LLC 528   2026-07-31   
501-597 6 Hot Springs AR   348F ONVOY, LLC - AR 528   2026-09-17   
501-597 7 Hot Springs AR   9556 INTRADO COMMUNICATIONS, LLC 528   2026-10-16   
501-597 8 Hot Springs AR   196F BANDWIDTH.COM CLEC, LLC - AR 528   2026-10-02   

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.