Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NO7F callsign genealogy
Currently held by Yuen, Paula E
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 NO7F's current licensee, walking backwards.
- Yuen, Paula EWAgranted 2003-06-26cancelled 2007-03-24
Successor callsigns
Callsigns held now by people who previously held NO7F.
- TILLEMAN, TIMOTHY JAKgranted 2024-03-26
All historical holders
Every license row we've seen with the callsign NO7F, oldest first.
- TILLEMAN, TIMOTHY J AK1994-08-19 → cancelled 2004-06-19
- Yuen, Paula E UT2017-01-05 active