Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ERD callsign genealogy
Currently held by LEARY, DOUGLAS T
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 K4ERD's current licensee, walking backwards.
- LEARY, DOUGLAS TNCgranted 2022-04-12cancelled 2022-05-06
Successor callsigns
Callsigns held now by people who previously held K4ERD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4ERD, oldest first.
- JOHNSON, JIMMIE AL2004-08-24 → cancelled 2006-12-26
- LEARY, DOUGLAS T NC2022-05-06 active