Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1SFO callsign genealogy
Currently held by Fong, Nicholas
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 N1SFO's current licensee, walking backwards.
- Fong, NicholasCAgranted 2016-08-02cancelled 2016-08-20
Successor callsigns
Callsigns held now by people who previously held N1SFO.
- Meredith, Irving PNHgranted 2007-01-23cancelled 2019-03-21