Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1JSK callsign genealogy
Currently held by Kalil, John A
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 K1JSK's current licensee, walking backwards.
- Kalil, John AMAgranted 2016-08-18cancelled 2016-10-18
Successor callsigns
Callsigns held now by people who previously held K1JSK.
- Kalil, John AMAgranted 2021-07-07