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: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-255 A Tooele UT DRPRUTKJ0MD  5562 METROPCS, INC. 660      
435-255 0 Tooele UT DRPRUTKJ0MD  5562 METROPCS, INC. 660   2014-08-29   
435-255 1 Tooele UT SLKCUTMAX9X  117F BANDWIDTH.COM CLEC, LLC - UT 660   2015-01-10   
435-255 2 Tooele UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2015-03-13   
435-255 3 Tooele UT SLKCUTMAX9X  117F BANDWIDTH.COM CLEC, LLC - UT 660   2015-01-10   
435-255 4 Tooele UT DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2014-09-25   
435-255 5 Tooele UT SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2015-08-10   
435-255 6 Tooele UT SLKCUTMAX9X  117F BANDWIDTH.COM CLEC, LLC - UT 660   2015-03-14   
435-255 7 Tooele UT SLKCUTMAX9X  117F BANDWIDTH.COM CLEC, LLC - UT 660   2015-03-14   
435-255 8 Tooele UT SLKCUTMAX9X  117F BANDWIDTH.COM CLEC, LLC - UT 660   2015-03-14   
435-255 9 Tooele UT DRPRUTKJ0MD  5562 METROPCS, INC. 660   2014-08-29   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.