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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-368 A Dale City VA   6664 SPRINT SPECTRUM L.P. 236      
571-368 0 Dale City VA   6664 SPRINT SPECTRUM L.P. 236   2017-09-14   
571-368 1 Dale City VA   6664 SPRINT SPECTRUM L.P. 236   2018-01-27   
571-368 2 Dale City VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-12-28   
571-368 3 Dale City VA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2017-11-21   
571-368 4 Dale City VA   138E ONVOY, LLC VA 236   2018-01-12   
571-368 5 Dale City VA   138E ONVOY, LLC VA 236   2018-01-12   
571-368 6 Dale City VA   138E ONVOY, LLC VA 236   2018-01-12   
571-368 7 Dale City VA   6664 SPRINT SPECTRUM L.P. 236   2018-07-30   
571-368 8 Dale City VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-04-08   
571-368 9 Dale City VA   6664 SPRINT SPECTRUM L.P. 236   2018-07-23   

Last updated: Sat, 08 Jun 2019 01:52:21 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.