Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4BOB callsign genealogy
Currently held by MARSH, WARD 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 K4BOB's current licensee, walking backwards.
- Schoonover, Bob LFLgranted 2008-07-01cancelled 2008-08-09
Successor callsigns
Callsigns held now by people who previously held K4BOB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4BOB, oldest first.
- MARSH, WARD L TN1996-07-17 → cancelled 2008-07-18
- Schoonover, Bob L FL2018-07-18 active