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: AMRLTX02X4Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
806-415 A Channing TX 508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-501 A Boys Ranch TX 508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-504 A Adrian TX 508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-505 A Estelline TX 508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-506 A Dodson TX 508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-519 A Lakeview TX 508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-526 A Groom TX 508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-529 A Wildorado TX 508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-563 A Sunray TX 508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-639 A Amarillo TX 508J CENTURYLINK COMMUNICATIONS, LLC 546      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.