Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JDO callsign genealogy
Currently held by LINCOLN, FLOYD W M
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 W4JDO's current licensee, walking backwards.
- Ogle, Jonathan DNCgranted 2026-03-06cancelled 2026-03-24
Successor callsigns
Callsigns held now by people who previously held W4JDO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JDO, oldest first.
- LINCOLN, FLOYD W M VA1997-09-24 → cancelled 2009-09-25
- Ogle, Jonathan D NC2026-03-24 active