Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4PDH callsign genealogy
Currently held by COCHRAN, HOWARD E
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 K4PDH's current licensee, walking backwards.
- Cochran, Scott DILgranted 2018-04-03cancelled 2020-03-17
Successor callsigns
Callsigns held now by people who previously held K4PDH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4PDH, oldest first.
- COCHRAN, HOWARD E MO2007-12-18 → cancelled 2018-03-28
- Cochran, Scott D IL2020-03-17 active