Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC2ADK callsign genealogy
Currently held by Harkness, Jonathan 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 KC2ADK's current licensee, walking backwards.
- Harkness, Jonathan MNYgranted 2023-04-28cancelled 2023-05-16
Successor callsigns
Callsigns held now by people who previously held KC2ADK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC2ADK, oldest first.
- GARCIA, RICHARD R NY2006-08-21 → cancelled 2018-11-14
- Harkness, Jonathan M NY2023-05-16 active