Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9ZP callsign genealogy
Currently held by Eichman Jr, Thomas E
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 AC9ZP's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AC9ZP.
- Eichman Jr, Thomas EWIgranted 2022-03-26