Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ0J callsign genealogy
Currently held by Nichols Sr, Dan
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 KZ0J's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KZ0J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KZ0J, oldest first.
- JARSTAD, MARK A MN1999-10-20 → cancelled 2011-10-21
- ZFRC WI2012-01-24 → cancelled 2024-01-25
- Nichols Sr, Dan FL2024-05-10 active