Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9RDM callsign genealogy
Currently held by Mann, Robert D
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 K9RDM's current licensee, walking backwards.
- Mann, Robert DCAgranted 2019-05-29cancelled 2019-06-18
Successor callsigns
Callsigns held now by people who previously held K9RDM.
- Mann, Robert DCAgranted 2022-02-12