Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD6OTM callsign genealogy
Currently held by GUZMAN, CARLOS A
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 KD6OTM's current licensee, walking backwards.
- Kalilikani Jr, Joseph KCAgranted 2019-06-21cancelled 2020-03-03
Successor callsigns
Callsigns held now by people who previously held KD6OTM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD6OTM, oldest first.
- GUZMAN, CARLOS A CA1992-11-03 → cancelled 2004-11-04
- Kalilikani Jr, Joseph KS2020-03-03 active