Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4JPB callsign genealogy
Currently held by DAVIS, JOHN L
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 KD4JPB's current licensee, walking backwards.
- Bailes IV, James PSCgranted 2025-07-29cancelled 2025-08-16
Successor callsigns
Callsigns held now by people who previously held KD4JPB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4JPB, oldest first.
- DAVIS, JOHN L WV2001-12-14 → cancelled 2014-03-11
- Bailes IV, James P SC2025-08-16 active