Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0CSH callsign genealogy
Currently held by Cash, Michael 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 K0CSH's current licensee, walking backwards.
- Cash, Michael BTXgranted 2022-09-07cancelled 2022-10-14
Successor callsigns
Callsigns held now by people who previously held K0CSH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0CSH, oldest first.
- Harger, Craig S FL2002-07-26 → cancelled 2014-07-29
- Cash, Michael B TX2022-10-14 active