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.

Switch: FTWQTXFH0MD

<< 1 2 3 4 5

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
972-431 3 Plano TX 508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 4 Plano TX 508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 5 Plano TX 508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 6 Plano TX 508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 7 Plano TX 508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 8 Plano TX 508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 9 Plano TX 508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-452 7 Scurry TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-12-22   
972-457 9 Irving TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-02-18   
972-472 6 Crandall TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-14   
972-493 7 Milford TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-12-22   
972-597 6 Italy TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2015-10-08   
972-637 2 Cedar Hill TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-14   
972-833 3 Ferris TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-15   
972-845 6 Palmer EMS TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-15   
972-846 5 Bristol EMS TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-14   
972-848 2 Wilmer TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-16   
972-903 0 Waxahachie TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2017-09-05   
972-962 1 Kaufman EMS TX 508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-06-17   

<< 1 2 3 4 5

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.