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: 254 [Rate centres in NPA 254] [Dial plan for NPA 254]

NXX: 434

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
254-434 A Stephenville TX STVLTXXBDS0  2084 BRIGHTSPEED OF EASTERN TEXAS, INC. 552      
254-434 0 Stephenville TX STVLTXXBDS0  2084 BRIGHTSPEED OF EASTERN TEXAS, INC. 552      
254-434 1 Stephenville TX DCTRTXXAUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2008-02-04   
254-434 2 Stephenville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-11-13   
254-434 3 Stephenville TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2009-11-20   
254-434 4 Stephenville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-09-25   
254-434 5 Stephenville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2021-11-06   
254-434 6 Stephenville TX STVLTXXBQMD  903C ONVOY, LLC - TX 552   2013-02-03   
254-434 7 Stephenville TX DCTRTXXAUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2010-06-05   
254-434 8 Stephenville TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2011-02-12   
254-434 9 Stephenville TX DLLTTX01GMD  6529 T-MOBILE USA, INC. 552   2007-10-31   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.