Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4LY callsign genealogy
Currently held by ALLEN, DOUGLASS 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 K4LY's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4LY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4LY, oldest first.
- THOMPSON, JOHN W GA1999-05-05 → cancelled 1991-11-30
- ALLEN, DOUGLASS M SC2017-03-29 active