Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5XRF callsign genealogy
Currently held by Jacobson Jr, Jon H
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 K5XRF's current licensee, walking backwards.
- Jacobson Jr, Jon HTXgranted 2007-09-20cancelled 2007-10-30
Successor callsigns
Callsigns held now by people who previously held K5XRF.
- Jacobson Jr, Jon HTXgranted 2021-11-17