Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7BUM callsign genealogy
Currently held by CRAIG, JACK
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 W7BUM's current licensee, walking backwards.
- Schenck III, Julius PWAgranted 2017-01-31cancelled 2017-02-22
Successor callsigns
Callsigns held now by people who previously held W7BUM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7BUM, oldest first.
- CRAIG, JACK OR1994-01-04 → cancelled 2006-01-05
- Schenck III, Julius P WA2017-02-22 active