Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5YUM callsign genealogy
Currently held by Miller, Jacob T
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 W5YUM's current licensee, walking backwards.
- Miller, Jacob TLAgranted 2018-04-02cancelled 2018-05-08
Successor callsigns
Callsigns held now by people who previously held W5YUM.
No current licensee on record previously held this callsign.