Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DPC callsign genealogy
Currently held by HAGERBAUMER, MYRON A
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 W9DPC's current licensee, walking backwards.
- CLAYTON, DONALD PILgranted 2015-03-24cancelled 2016-04-22
Successor callsigns
Callsigns held now by people who previously held W9DPC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9DPC, oldest first.
- HAGERBAUMER, MYRON A IL1988-07-19 → cancelled 2000-07-20
- CLAYTON, DONALD P IL2026-03-17 active