Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA0CBH callsign genealogy
Currently held by Hatfield, Christopher 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 KA0CBH's current licensee, walking backwards.
- Hatfield, Christopher BCOgranted 2016-09-14cancelled 2016-12-20
Successor callsigns
Callsigns held now by people who previously held KA0CBH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA0CBH, oldest first.
- MARIN, HELEN G MO1989-08-15 → cancelled 2001-08-16
- Hatfield, Christopher B CO2016-12-20 active