Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9FDM callsign genealogy
Currently held by Modesitt, Fritz 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 K9FDM's current licensee, walking backwards.
- Modesitt, Fritz DINgranted 2008-02-15cancelled 2008-03-08
Successor callsigns
Callsigns held now by people who previously held K9FDM.
No current licensee on record previously held this callsign.