Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8DIY callsign genealogy
Currently held by Monson Waldrup, Donna J
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 W8DIY's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W8DIY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8DIY, oldest first.
- BOLLES, REUBEN K OH1994-03-29 → cancelled 2006-03-30
- Monson Waldrup, Donna J MI2025-01-04 active