Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RYY callsign genealogy
Currently held by MILLS, DONALD L
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 K4RYY's current licensee, walking backwards.
- MILLS, DONALD LKYgranted 1994-12-12cancelled 2002-03-07
Successor callsigns
Callsigns held now by people who previously held K4RYY.
- MILLS, DONALD LTNgranted 2019-12-27