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: 435 [Rate centres in NPA 435] [Dial plan for NPA 435]

NXX: 571

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-571 A Park City UT SLKDUTYI3MD  3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660      
435-571 0 Park City UT SLKDUTYI3MD  3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660      
435-571 1 Park City UT DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 2 Park City UT DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 3 Park City UT DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 4 Park City UT DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 5 Park City UT DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 6 Park City UT DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 7 Park City UT DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 8 Park City UT DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 9 Park City UT DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2010-04-13   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.