Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF5IR callsign genealogy
Currently held by Clausen, John K
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 AF5IR's current licensee, walking backwards.
- Clausen, John KTXgranted 2012-09-26cancelled 2013-02-27
Successor callsigns
Callsigns held now by people who previously held AF5IR.
No current licensee on record previously held this callsign.