Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6GDR callsign genealogy
Currently held by KOLBE, ULRICH
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 W6GDR's current licensee, walking backwards.
- KOLBE, ULRICHCAgranted 2026-08-11
Successor callsigns
Callsigns held now by people who previously held W6GDR.
- KOLBE, ULRICHCAgranted 2026-08-11