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: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-600 A Parowan UT SLKCUT26BMD  965H FRACTEL, LLC 660      
435-600 0 Parowan UT SLKCUT26BMD  965H FRACTEL, LLC 660      
435-600 1 Parowan UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-600 3 Parowan UT SLKCUT268MD  197D VONAGE AMERICA LLC 660      
435-600 6 Parowan UT SLKCUT26BMD  965H FRACTEL, LLC 660      
435-600 8 Parowan UT   6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-600 9 Parowan UT   515J IP HORIZON LLC 660      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.