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: 479 [Rate centres in NPA 479] [Dial plan for NPA 479]

NXX: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
479-597 A Greenwood AR FTSMARHUGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 526      
479-597 0 Greenwood AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 526      
479-597 2 Greenwood AR   490J DISH WIRELESS, LLC 526   2022-11-11   
479-597 3 Greenwood AR   318J COMCAST IP PHONE, LLC 526   2018-03-27   
479-597 4 Greenwood AR   348F ONVOY, LLC - AR 526   2020-10-16   
479-597 5 Greenwood AR   348F ONVOY, LLC - AR 526   2020-10-16   
479-597 6 Greenwood AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 526      
479-597 8 Greenwood AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 526      
479-597 9 Greenwood AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 526      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.