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: 303

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
570-303 A Thompson PA WLBRPA04GT0  3806 CORE COMMUNICATIONS, INC. - PA 232      
570-303 0 Thompson PA WLBRPA04GT0  3806 CORE COMMUNICATIONS, INC. - PA 232      
570-303 1 Thompson PA LWBGPAXL1MD  6921 LIMITLESS MOBILE, LLC 232      
570-303 2 Thompson PA SCTNPASCX4Y  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 232      
570-303 3 Thompson PA   3806 CORE COMMUNICATIONS, INC. - PA 232      
570-303 4 Thompson PA   3806 CORE COMMUNICATIONS, INC. - PA 232      
570-303 5 Thompson PA   3806 CORE COMMUNICATIONS, INC. - PA 232      
570-303 6 Thompson PA   3806 CORE COMMUNICATIONS, INC. - PA 232      
570-303 7 Thompson PA   3806 CORE COMMUNICATIONS, INC. - PA 232      
570-303 8 Thompson PA   3806 CORE COMMUNICATIONS, INC. - PA 232      
570-303 9 Thompson PA   3806 CORE COMMUNICATIONS, INC. - PA 232      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.