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: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

NXX: 200

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-200 A Arlington TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
817-200 0 Arlington TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
817-200 1 Arlington TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
817-200 2 Arlington TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
817-200 3 Arlington TX FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552   2017-02-25   
817-200 4 Arlington TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-01-20   
817-200 5 Arlington TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
817-200 6 Arlington TX   793K TWC IP ENABLED SERVICES, LLC 552   2007-06-25   
817-200 7 Arlington TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-07-18   
817-200 8 Arlington TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2008-11-17   
817-200 9 Arlington TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.