Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0TTY callsign genealogy
Currently held by HIRSCH, JEFF B
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 K0TTY's current licensee, walking backwards.
- HIRSCH, JEFF BMOgranted 2021-01-09cancelled 2021-02-17
Successor callsigns
Callsigns held now by people who previously held K0TTY.
- HART JR, JOHN PNYgranted 2015-11-07
All historical holders
Every license row we've seen with the callsign K0TTY, oldest first.
- JONES, HAROLD L KS1998-02-05 → cancelled 2001-10-20
- HART JR, JOHN P MO2008-06-10 → cancelled 2015-11-07
- HIRSCH, JEFF B MO2021-02-17 active