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: 570 [Rate centres in NPA 570] [Dial plan for NPA 570]

NXX: 392

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
570-392 A Wyoming PA SCTNPASCX1Y  4024 CHOICE ONE COMMUNICATIONS, INC. - PA 232      
570-392 0 Wyoming PA SCTNPASCX1Y  4024 CHOICE ONE COMMUNICATIONS, INC. - PA 232      
570-392 1 Wyoming PA SCTNPASCX1Y  4024 CHOICE ONE COMMUNICATIONS, INC. - PA 232      
570-392 2 Wyoming PA   3806 CORE COMMUNICATIONS, INC. - PA 232   2009-03-25   
570-392 3 Wyoming PA SCTNPASCXBY  002F BANDWIDTH.COM CLEC, LLC - PA 232   2012-06-18   
570-392 4 Wyoming PA SCTNPASCXDX  2514 US LEC OF PENNSYLVANIA, INC. 232   2012-10-15   
570-392 6 Wyoming PA SCTNPASCXBY  002F BANDWIDTH.COM CLEC, LLC - PA 232   2014-02-27   
570-392 7 Wyoming PA SCTNPASCX8Z  508J CENTURYLINK COMMUNICATIONS, LLC 232   2016-02-13   
570-392 9 Wyoming PA SCTNPASCXBY  002F BANDWIDTH.COM CLEC, LLC - PA 232   2008-12-19   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.