Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4FOO callsign genealogy
Currently held by ADCOCK JR, ALVIN N
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 W4FOO's current licensee, walking backwards.
- Fuster, Joel JVAgranted 2017-04-28cancelled 2017-05-31
Successor callsigns
Callsigns held now by people who previously held W4FOO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4FOO, oldest first.
- ADCOCK JR, ALVIN N GA2003-11-03 → cancelled 2016-01-19
- Fuster, Joel J FL2017-05-31 active