Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9JLU callsign genealogy
Currently held by KAEMPFER, CHAD
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 K9JLU's current licensee, walking backwards.
- KAEMPFER, CHADILgranted 2019-10-22cancelled 2019-11-15
Successor callsigns
Callsigns held now by people who previously held K9JLU.
- KAEMPFER, CHADILgranted 2019-12-13