Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5EFS callsign genealogy
Currently held by Soldevilla, Eric F
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 K5EFS's current licensee, walking backwards.
- Soldevilla, Eric FTXgranted 2018-07-12cancelled 2018-08-07
Successor callsigns
Callsigns held now by people who previously held K5EFS.
No current licensee on record previously held this callsign.