Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD6WWW callsign genealogy
Currently held by Leingang III, William 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 KD6WWW's current licensee, walking backwards.
- Leingang III, William MCAgranted 2022-03-08cancelled 2022-04-01
Successor callsigns
Callsigns held now by people who previously held KD6WWW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD6WWW, oldest first.
- O CONNOR, PATRICK R AP1993-06-08 → cancelled 2005-06-09
- Leingang III, William M IN2022-04-01 active