Confidence: Medium · Source: FCC ULS · As of 2026-09-18
KE4IQI callsign genealogy
Currently held by STEFFEN, JOHN C
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 KE4IQI's current licensee, walking backwards.
- Steffen, Barbara AFLgranted 1999-01-29cancelled 2004-08-03
Successor callsigns
Callsigns held now by people who previously held KE4IQI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KE4IQI, oldest first.
- STEFFEN, JOHN C FL2003-10-15 → cancelled 2004-04-26
- Steffen, Barbara A FL2014-07-03 → cancelled 2026-08-06