Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KV4JL callsign genealogy
Currently held by WHITMER, MARK
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 KV4JL's current licensee, walking backwards.
- WHITMER, MARKGAgranted 2012-12-19cancelled 2012-12-21
Successor callsigns
Callsigns held now by people who previously held KV4JL.
No current licensee on record previously held this callsign.