Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9YDD callsign genealogy
Currently held by Adams, Fred M
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 K9YDD's current licensee, walking backwards.
- Adams, Fred MILgranted 2010-07-13cancelled 2011-10-15
Successor callsigns
Callsigns held now by people who previously held K9YDD.
No current licensee on record previously held this callsign.