Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4IGY callsign genealogy
Currently held by TEAM SEVEN TREES - ADVENTURES IN RADIO
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 KR4IGY's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KR4IGY.
- N1TSTactiveTEAM SEVEN TREES - ADVENTURES IN RADIOFLgranted 2026-01-21