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
571-758 A Dulles VA   5562 METRO PCS, INC. 236      
571-758 0 Dulles VA   5562 METRO PCS, INC. 236   2013-07-20   
571-758 1 Dulles VA   5562 METRO PCS, INC. 236   2013-07-23   
571-758 2 Dulles VA   079F BANDWIDTH.COM CLEC, LLC - VA 236   2014-03-26   
571-758 3 Dulles VA   079F BANDWIDTH.COM CLEC, LLC - VA 236   2014-06-02   
571-758 4 Dulles VA   079F BANDWIDTH.COM CLEC, LLC - VA 236   2014-07-17   
571-758 5 Dulles VA   079F BANDWIDTH.COM CLEC, LLC - VA 236   2013-08-16   
571-758 6 Dulles VA   102H LOCAL ACCESS LLC - VA 236   2015-03-21   
571-758 7 Dulles VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2015-05-18   
571-758 8 Dulles VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2014-08-20   
571-758 9 Dulles VA   5562 METRO PCS, INC. 236   2013-07-20   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.