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: 571 [Rate centres in NPA 571] [Dial plan for NPA 571]

NXX: 495

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-495 A Washington Zone 19 VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-495 0 Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2017-11-26   
571-495 1 Washington Zone 19 VA   138E ONVOY, LLC VA 236   2018-02-18   
571-495 2 Washington Zone 19 VA   138E ONVOY, LLC VA 236   2018-02-18   
571-495 3 Washington Zone 19 VA   138E ONVOY, LLC VA 236   2018-02-18   
571-495 4 Washington Zone 19 VA   8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2017-11-20   
571-495 5 Washington Zone 19 VA   8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2017-11-20   
571-495 6 Washington Zone 19 VA   8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2018-02-21   
571-495 7 Washington Zone 19 VA   6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2018-11-12   
571-495 8 Washington Zone 19 VA   079F BANDWIDTH.COM CLEC, LLC - VA 236   2020-08-08   
571-495 9 Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-01-21   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.