Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5RFV callsign genealogy
Currently held by MOHNKERN, LEONARD C
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 W5RFV's current licensee, walking backwards.
- MOHNKERN, CHARLES JTXgranted 2007-04-18cancelled 2008-11-29
Successor callsigns
Callsigns held now by people who previously held W5RFV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5RFV, oldest first.
- MOHNKERN, LEONARD C TX2005-09-07 → cancelled 2006-11-18
- MOHNKERN, CHARLES J TX2018-10-10 active