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: 401

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
501-401 A Little Rock AR LTRKARFRXZY  197D VONAGE AMERICA LLC 528      
501-401 0 Little Rock AR LTRKARFRXZY  197D VONAGE AMERICA LLC 528      
501-401 1 Little Rock AR LTRKARFRXPY  802C TELEPORT COMMUNICATIONS AMERICA, LLC - AR 528   2022-06-20   
501-401 2 Little Rock AR LTRKARFRXFY  624H ONVOY SPECTRUM, LLC 528   2022-08-15   
501-401 3 Little Rock AR LTRKARFRXZY  197D VONAGE AMERICA LLC 528      
501-401 4 Little Rock AR LTRKARFRXFY  624H ONVOY SPECTRUM, LLC 528   2022-06-25   
501-401 5 Little Rock AR LTRKARFRXFY  624H ONVOY SPECTRUM, LLC 528   2022-06-25   
501-401 6 Little Rock AR LTRKARZODS0  7277 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 528   2022-05-16   
501-401 8 Little Rock AR LTRKARFRXFY  624H ONVOY SPECTRUM, LLC 528   2023-03-02   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.