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.

Warren Center, PA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
570-395 A WRCTPAXWRS1  0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-395 0   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-395 2   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 232   2018-04-22   
570-395 3   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-395 4   145J TERRA NOVA TELECOM INC. 232   2025-07-21   
570-395 5   6921 LIMITLESS MOBILE, LLC 232   2018-02-12   
570-395 7   508J CENTURYLINK COMMUNICATIONS, LLC 232   2016-02-12   
570-395 8   8320 SERVICE ELECTRIC TELEPHONE COMPANY, LLC 232   2012-04-09   
570-395 9   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-684 A WLBRPA04GT0  3806 CORE COMMUNICATIONS, INC. - PA 232      
570-684 0   3806 CORE COMMUNICATIONS, INC. - PA 232   2009-05-17   
570-684 1   3806 CORE COMMUNICATIONS, INC. - PA 232   2018-06-14   
570-684 2   3806 CORE COMMUNICATIONS, INC. - PA 232   2018-06-14   
570-684 3   3806 CORE COMMUNICATIONS, INC. - PA 232   2018-06-14   
570-684 4   547E ONVOY, LLC - PA 232   2021-04-04   
570-684 5   547E ONVOY, LLC - PA 232   2021-04-04   
570-684 6   547E ONVOY, LLC - PA 232   2019-12-18   
570-684 7   624H ONVOY SPECTRUM, LLC 232   2023-11-27   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.