Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5MEF callsign genealogy
Currently held by KOLB, WILLIAM E
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 W5MEF's current licensee, walking backwards.
- Flusche, Michael ETXgranted 2019-03-14cancelled 2019-12-27
Successor callsigns
Callsigns held now by people who previously held W5MEF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5MEF, oldest first.
- KOLB, WILLIAM E NM2005-10-29 → cancelled 2017-11-02
- Flusche, Michael E TX2019-12-27 active