Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1SK callsign genealogy
Currently held by Donovan, Peter
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 K1SK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K1SK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1SK, oldest first.
- KIMBALL, STEPHEN R FL2007-05-02 → cancelled 2019-02-13
- Donovan, Peter ME2019-03-05 active