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: 396

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-396 A Washington Zone 19 VA WASHDCDP8MD  079F BANDWIDTH.COM CLEC, LLC - VA 236      
571-396 0 Washington Zone 19 VA WASHDCDP8MD  079F BANDWIDTH.COM CLEC, LLC - VA 236   2018-11-23   
571-396 1 Washington Zone 19 VA BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-12-15   
571-396 2 Washington Zone 19 VA BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-12-15   
571-396 3 Washington Zone 19 VA WASHDC125MD  197D VONAGE AMERICA LLC 236   2018-12-20   
571-396 4 Washington Zone 19 VA WASHDC125MD  197D VONAGE AMERICA LLC 236   2018-12-20   
571-396 5 Washington Zone 19 VA WASHDC125MD  197D VONAGE AMERICA LLC 236   2018-12-20   
571-396 6 Washington Zone 19 VA WASHDC125MD  197D VONAGE AMERICA LLC 236   2018-12-20   
571-396 7 Washington Zone 19 VA WASHDC125MD  197D VONAGE AMERICA LLC 236   2018-12-20   
571-396 8 Washington Zone 19 VA WASHDC125MD  197D VONAGE AMERICA LLC 236   2018-12-20   
571-396 9 Washington Zone 19 VA WASHDC125MD  197D VONAGE AMERICA LLC 236   2018-12-20   

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.