Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6UDK callsign genealogy
Currently held by POLLARD, WILLIAM A
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 K6UDK's current licensee, walking backwards.
- POLLARD, ROBERT JCAgranted 2016-01-20cancelled 2016-02-17
Successor callsigns
Callsigns held now by people who previously held K6UDK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6UDK, oldest first.
- POLLARD, WILLIAM A CA1987-09-01 → cancelled 1999-09-02
- Hess, Ulla NV2000-06-24 → cancelled 2012-06-26
- POLLARD, ROBERT J CA2026-02-04 active