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: 393

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-393 A Parowan UT SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-393 0 Parowan UT SLKCUTMAX9X  117F BANDWIDTH.COM CLEC, LLC - UT 660   2014-05-16   
435-393 1 Parowan UT SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-393 2 Parowan UT WVCYUT14DS1  871E ONVOY, LLC - UT 660   2012-12-20   
435-393 3 Parowan UT WVCYUT14DS1  871E ONVOY, LLC - UT 660   2012-12-20   
435-393 4 Parowan UT WVCYUT14DS1  871E ONVOY, LLC - UT 660   2012-12-20   
435-393 5 Parowan UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2012-06-21   
435-393 6 Parowan UT SLKCUTMAX9X  117F BANDWIDTH.COM CLEC, LLC - UT 660   2014-12-19   
435-393 7 Parowan UT WVCYUT14DS1  871E ONVOY, LLC - UT 660   2014-01-02   
435-393 8 Parowan UT WVCYUT14DS1  871E ONVOY, LLC - UT 660   2014-01-02   
435-393 9 Parowan UT SLKCUT266MD  073H TELNYX LLC 660   2018-09-21   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.