Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4CAF callsign genealogy
Currently held by FREDERICKSON, CHARLES A
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 W4CAF's current licensee, walking backwards.
- Kelliher, BenjaminVAgranted 2022-04-12cancelled 2022-06-01
Successor callsigns
Callsigns held now by people who previously held W4CAF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4CAF, oldest first.
- FREDERICKSON, CHARLES A VA2006-11-18 → cancelled 2019-02-13
- Kelliher, Benjamin VA2022-06-01 active