Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ0MBY callsign genealogy
Currently held by Marr, Stephen P
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 KZ0MBY's current licensee, walking backwards.
- Fairbanks, NicolasMOgranted 2025-08-06cancelled 2025-08-26
Successor callsigns
Callsigns held now by people who previously held KZ0MBY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KZ0MBY, oldest first.
- Marr, Stephen P CA2013-06-15 → cancelled 2025-06-17
- Fairbanks, Nicolas MO2025-08-26 active