Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1DRD callsign genealogy
Currently held by Drury, David R
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 K1DRD's current licensee, walking backwards.
- Drury, David RMAgranted 2016-05-31cancelled 2016-06-18
Successor callsigns
Callsigns held now by people who previously held K1DRD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1DRD, oldest first.
- Koffman, David M MA2003-08-01 → cancelled 2015-08-04
- Drury, David R MA2026-04-08 active