Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7JK callsign genealogy
Currently held by Sabelhaus, Ralph F
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 AD7JK's current licensee, walking backwards.
- Sabelhaus, Ralph FAZgranted 2006-05-31cancelled 2006-08-28
Successor callsigns
Callsigns held now by people who previously held AD7JK.
No current licensee on record previously held this callsign.