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.

OCN: 4009 MILLENNIUM TELCOM, LLC DBA ONESOURCE COMM. - TX

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
817-741 A Keller TX KLLRTX02DS0  552      
817-742 A Roanoke TX KLLRTX02DS0  552      
817-742 0 Roanoke TX   552      
817-742 1 Roanoke TX   552      
817-742 2 Roanoke TX   552      
817-742 3 Roanoke TX   552      
817-742 4 Roanoke TX   552      
817-742 5 Roanoke TX   552      
817-742 7 Roanoke TX   552      
817-743 A North Richland Hills TX KLLRTX02DS0  552      
817-743 0 North Richland Hills TX   552      
817-743 1 North Richland Hills TX   552      
817-744 A Fort Worth TX KLLRTX02DS0  552      
817-745 A Keller EMS TX KLLRTX02DS0  552      
817-745 0 Keller EMS TX   552      
817-745 1 Keller EMS TX   552      
817-745 3 Keller EMS TX   552      
817-745 4 Keller EMS TX   552      
817-745 8 Keller EMS TX   552      
817-747 A North Richland Hills EMS TX KLLRTX02DS0  552      
817-747 6 North Richland Hills EMS TX   552      
817-748 A Grapevine EMS TX KLLRTX02DS0  552      
817-748 0 Grapevine EMS TX   552      
817-748 1 Grapevine EMS TX   552      
817-748 4 Grapevine EMS TX   552      
817-749 A Grapevine TX KLLRTX02DS0  552      
817-749 0 Grapevine TX   552      
817-749 2 Grapevine TX   552      
817-749 3 Grapevine TX   552      
817-749 9 Grapevine TX   552      
817-750 A Fort Worth TX KLLRTX02DS0  552      
817-750 0 Fort Worth TX   552      
817-750 1 Fort Worth TX   552      
817-750 2 Fort Worth TX   552      
817-750 3 Fort Worth TX   552      
817-750 4 Fort Worth TX   552      
817-750 5 Fort Worth TX   552      
817-750 6 Fort Worth TX   552      
817-750 7 Fort Worth TX   552      
817-750 9 Fort Worth TX   552      
817-945 A Fort Worth TX KLLRTX02DS2  552      
817-945 0 Fort Worth TX KLLRTX02DS2  552   2006-03-10   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.