Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD7ZH callsign genealogy
Currently held by BACHMANN SR, MICHAEL L
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 KD7ZH's current licensee, walking backwards.
- Egan, Adam RORgranted 2013-10-31cancelled 2019-02-05
Successor callsigns
Callsigns held now by people who previously held KD7ZH.
- Egan, Adam RORgranted 2019-05-07
All historical holders
Every license row we've seen with the callsign KD7ZH, oldest first.
- BACHMANN SR, MICHAEL L ID1993-10-05 → cancelled 2005-10-06
- Egan, Adam R OR2019-02-05 → cancelled 2019-05-07