Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7TUM callsign genealogy
Currently held by Weisenfeld Mr, Mark 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 K7TUM's current licensee, walking backwards.
- Weisenfeld Mr, Mark EWAgranted 2017-05-25cancelled 2017-07-25
Successor callsigns
Callsigns held now by people who previously held K7TUM.
No current licensee on record previously held this callsign.