Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ7LK callsign genealogy
Currently held by BUMKE, ROBERT A
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 AJ7LK's current licensee, walking backwards.
- BUMKE, ROBERT AMTgranted 2019-02-14cancelled 2026-07-20
Successor callsigns
Callsigns held now by people who previously held AJ7LK.
No current licensee on record previously held this callsign.