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: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
501-600 A Pleasant Plains AR LTRKARFRXLY  348F ONVOY, LLC - AR 528      
501-600 0 Pleasant Plains AR LTRKARFRXLY  348F ONVOY, LLC - AR 528   2019-01-07   
501-600 1 Pleasant Plains AR LTRKARFRX7Y  073H TELNYX LLC 528   2020-05-22   
501-600 2 Pleasant Plains AR LTRKARFRXLY  348F ONVOY, LLC - AR 528   2020-02-06   
501-600 3 Pleasant Plains AR LTRKARFRXLY  348F ONVOY, LLC - AR 528   2020-02-06   
501-600 4 Pleasant Plains AR LTRKARFRXLY  348F ONVOY, LLC - AR 528   2021-08-08   
501-600 5 Pleasant Plains AR JNBOARDSDS0  095A E. RITTER COMMS DBA RITTER COMMUNICATIONS, INC. AR 528   2022-06-23   
501-600 6 Pleasant Plains AR LTRKARFRXLY  348F ONVOY, LLC - AR 528   2018-11-22   
501-600 7 Pleasant Plains AR LTRKARFRXFY  624H ONVOY SPECTRUM, LLC 528   2024-05-20   
501-600 8 Pleasant Plains AR JNBOARMAXMD  048G TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 528   2022-12-09   
501-600 9 Pleasant Plains AR LTRKARFRXKY  196F BANDWIDTH.COM CLEC, LLC - AR 528   2021-09-06   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.