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: 617

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-617 A Arlington TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
817-617 0 Arlington TX DLLTTXID1MD  5562 METROPCS, INC. 552   2011-10-25   
817-617 1 Arlington TX DLLTTXID1MD  5562 METROPCS, INC. 552   2011-10-25   
817-617 2 Arlington TX   793K TWC IP ENABLED SERVICES, LLC 552   2012-01-25   
817-617 3 Arlington TX   793K TWC IP ENABLED SERVICES, LLC 552   2012-02-07   
817-617 4 Arlington TX DLLSTXHM0MD  829J PAETEC ITEL, LLC 552   2013-08-15   
817-617 5 Arlington TX DLLSTXHM0MD  829J PAETEC ITEL, LLC 552   2011-11-19   
817-617 6 Arlington TX DLLTTXID1MD  5562 METROPCS, INC. 552   2011-10-25   
817-617 7 Arlington TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2011-10-22   
817-617 8 Arlington TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2011-11-25   
817-617 9 Arlington TX ELSSTXAEGT6  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2012-03-02   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.