Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4BOH callsign genealogy
Currently held by HAMM, ROBERT C
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 K4BOH's current licensee, walking backwards.
- HAMM, ROBERT CSCgranted 2015-09-14cancelled 2015-10-06
Successor callsigns
Callsigns held now by people who previously held K4BOH.
No current licensee on record previously held this callsign.