Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB0ETM callsign genealogy
Currently held by BOETTLER, TIMOTHY M
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 KB0ETM's current licensee, walking backwards.
- BOETTLER, TIMOTHY MMOgranted 2008-04-23cancelled 2008-05-13
Successor callsigns
Callsigns held now by people who previously held KB0ETM.
- BOETTLER, TIMOTHY MMOgranted 2020-06-18
All historical holders
Every license row we've seen with the callsign KB0ETM, oldest first.
- MULLIS, LEONARD M CO1989-06-06 → cancelled 1998-10-21
- BOETTLER, TIMOTHY M MO2008-05-13 → cancelled 2010-07-07