Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3HRT callsign genealogy
Currently held by Prettyman, William J
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 W3HRT's current licensee, walking backwards.
- Robinson, Marcus LOKgranted 2022-09-13cancelled 2022-10-01
Successor callsigns
Callsigns held now by people who previously held W3HRT.
- Prettyman, William JDEgranted 2026-05-12
All historical holders
Every license row we've seen with the callsign W3HRT, oldest first.
- Prettyman, William J DE2005-04-26 → cancelled 2006-07-28
- Robinson, Marcus L OK2022-10-01 active