Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5IDX callsign genealogy
Currently held by BLAIR JR, HERBERT W
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K5IDX's current licensee, walking backwards.
- KD5SDVcancelledLone Star DX AssociationTXgranted 2002-04-23cancelled 2002-07-30
Successor callsigns
Callsigns held now by people who previously held K5IDX.
- BLAIR JR, HERBERT WTXgranted 2020-05-13cancelled 2024-08-13
All historical holders
Every license row we've seen with the callsign K5IDX, oldest first.
- BLAIR JR, HERBERT W TX1997-10-01 → cancelled 2000-07-11
- Lone Star DX Association TX2013-10-26 → cancelled 2026-03-07