Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9OFU callsign genealogy
Currently held by Lieber, William F
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 N9OFU's current licensee, walking backwards.
- Lieber, William FAZgranted 2022-08-30cancelled 2024-03-26
Successor callsigns
Callsigns held now by people who previously held N9OFU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9OFU, oldest first.
- MORTON, PAUL D TX2012-02-04 → cancelled 2024-02-16
- Lieber, William F AZ2024-03-26 active