Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0TH callsign genealogy
Currently held by HOBBY, THOMAS K
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 K0TH's current licensee, walking backwards.
- Hemphill - Hantuba, Jason RMNgranted 2018-02-14cancelled 2018-11-24
Successor callsigns
Callsigns held now by people who previously held K0TH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0TH, oldest first.
- HOBBY, THOMAS K NM2006-08-16 → cancelled 2018-11-06
- Hemphill - Hantuba, Jason R MN2018-11-24 active