Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD9DW callsign genealogy
Currently held by Cramer, Mike 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 AD9DW's current licensee, walking backwards.
- Cramer, Mike AWIgranted 2018-11-30cancelled 2024-02-26
Successor callsigns
Callsigns held now by people who previously held AD9DW.
No current licensee on record previously held this callsign.