Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5MBC callsign genealogy
Currently held by WATZKE SR, LEON L
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 N5MBC's current licensee, walking backwards.
- Holmes, WilliamTXgranted 2023-10-19cancelled 2024-03-09
Successor callsigns
Callsigns held now by people who previously held N5MBC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5MBC, oldest first.
- WATZKE SR, LEON L LA1997-11-17 → cancelled 2009-11-18
- Holmes, William TX2024-03-09 active