Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3PO callsign genealogy
Currently held by WATANABE, EUGENE 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 K3PO's current licensee, walking backwards.
- Kindred, David AMDgranted 2006-01-17cancelled 2008-11-25
Successor callsigns
Callsigns held now by people who previously held K3PO.
- WATANABE, EUGENE MUTgranted 2016-09-17
All historical holders
Every license row we've seen with the callsign K3PO, oldest first.
- WATANABE, EUGENE M UT1996-11-04 → cancelled 2006-10-11
- Kindred, David A MD2018-09-19 active