Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB8UUM callsign genealogy
Currently held by STORCHAN, GEOFFREY 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 KB8UUM'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 KB8UUM.
- STORCHAN, GEOFFREY BDCgranted 2011-04-05cancelled 2020-05-29