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: 476

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
501-476 A Little Rock AR   348F ONVOY, LLC - AR 528   2025-04-02   
501-476 0 Little Rock AR   348F ONVOY, LLC - AR 528   2008-02-24   
501-476 3 Little Rock AR LTRKARFRXJZ  318J COMCAST IP PHONE, LLC 528   2016-03-21   
501-476 5 Little Rock AR LTRKARFRXKY  196F BANDWIDTH.COM CLEC, LLC - AR 528   2010-06-18   
501-476 6 Little Rock AR LTRKARFRXKY  196F BANDWIDTH.COM CLEC, LLC - AR 528   2010-06-18   
501-476 7 Little Rock AR LTRKARFRXKY  196F BANDWIDTH.COM CLEC, LLC - AR 528   2010-06-18   
501-476 8 Little Rock AR NLRKAR446MD  6529 T-MOBILE USA, INC. 528   2011-02-27   
501-476 9 Little Rock AR NLRKAR446MD  6529 T-MOBILE USA, INC. 528   2011-04-13   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.