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: 893

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
501-893 A Center Ridge AR CNRGARMARS2  9533 SOUTHWESTERN BELL 528      
501-893 0 Center Ridge AR   073H TELNYX LLC 528   2018-11-14   
501-893 1 Center Ridge AR   9533 SOUTHWESTERN BELL 528      
501-893 2 Center Ridge AR   9533 SOUTHWESTERN BELL 528      
501-893 3 Center Ridge AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2020-05-30   
501-893 4 Center Ridge AR   516C AT&T CORP. 528   2011-04-15   
501-893 5 Center Ridge AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2020-05-30   
501-893 6 Center Ridge AR   9533 SOUTHWESTERN BELL 528      
501-893 7 Center Ridge AR   348F ONVOY, LLC - AR 528   2016-03-25   
501-893 8 Center Ridge AR   348F ONVOY, LLC - AR 528   2016-03-25   
501-893 9 Center Ridge AR   9533 SOUTHWESTERN BELL 528      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.