Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4UYO callsign genealogy
Currently held by ABRAMS, PHILIP H
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 KD4UYO's current licensee, walking backwards.
- ABRAMS, PHILIP HGAgranted 2013-06-25cancelled 2019-11-19
Successor callsigns
Callsigns held now by people who previously held KD4UYO.
- ABRAMS, PHILIP HGAgranted 2013-06-25cancelled 2019-11-19
All historical holders
Every license row we've seen with the callsign KD4UYO, oldest first.
- ABRAMS, PHILIP H GA2013-06-25 → cancelled 2015-02-17
- ABRAMS, PHILIP H GA2019-11-19 active