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: 343

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
501-343 A Little Rock AR LTRKARFRXFY  624H ONVOY SPECTRUM, LLC 528      
501-343 0 Little Rock AR LTRKARFRXFY  624H ONVOY SPECTRUM, LLC 528   2022-08-15   
501-343 1 Little Rock AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2024-05-25   
501-343 2 Little Rock AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2024-05-25   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.