Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KE7FFK callsign genealogy
Currently held by Singleton Jr, John O
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 KE7FFK's current licensee, walking backwards.
- SINGLETON JR, JOHN OUTgranted 1995-11-28cancelled 2005-10-27
Successor callsigns
Callsigns held now by people who previously held KE7FFK.
- Singleton Jr, John OUTgranted 2026-05-30