Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1UMH callsign genealogy
Currently held by SENYKOFF JR, RONALD S
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 KB1UMH's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB1UMH.
- SENYKOFF JR, RONALD SMAgranted 2024-07-31