Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WU2FAN callsign genealogy
Currently held by Castillo, Jesse
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 WU2FAN's current licensee, walking backwards.
- Castillo, JesseIAgranted 2015-03-06cancelled 2015-07-24
Successor callsigns
Callsigns held now by people who previously held WU2FAN.
- Castillo, JesseIAgranted 2026-01-29