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: 291

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
570-291 A Olyphant PA   829J PAETEC ITEL, LLC 232   2025-03-04   
570-291 0 Olyphant PA   829J PAETEC ITEL, LLC 232      
570-291 1 Olyphant PA   829J PAETEC ITEL, LLC 232      
570-291 2 Olyphant PA   3806 CORE COMMUNICATIONS, INC. - PA 232   2009-03-25   
570-291 3 Olyphant PA   829J PAETEC ITEL, LLC 232      
570-291 4 Olyphant PA   318J COMCAST IP PHONE, LLC 232   2016-08-04   
570-291 5 Olyphant PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 232   2007-09-07   
570-291 6 Olyphant PA   7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 232   2009-06-25   
570-291 7 Olyphant PA   002F BANDWIDTH.COM CLEC, LLC - PA 232   2012-07-06   
570-291 8 Olyphant PA   002F BANDWIDTH.COM CLEC, LLC - PA 232   2013-12-26   
570-291 9 Olyphant PA   829J PAETEC ITEL, LLC 232      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.