Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1DH callsign genealogy
Currently held by Mikulla, Dirk
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 K1DH's current licensee, walking backwards.
- POWELL JR, BILLY LTXgranted 2019-11-21cancelled 2021-03-09
Successor callsigns
Callsigns held now by people who previously held K1DH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1DH, oldest first.
- Huntington, Donald E CT2007-01-03 → cancelled 2013-10-21
- Mikulla, Dirk MD2015-11-10 → cancelled 2019-02-12
- POWELL JR, BILLY L TX2021-03-09 active