Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WR3T callsign genealogy
Currently held by PETERSON, KARL R
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 WR3T's current licensee, walking backwards.
- DeStefano, Anthony JMDgranted 2013-04-22cancelled 2013-11-09
Successor callsigns
Callsigns held now by people who previously held WR3T.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WR3T, oldest first.
- PETERSON, KARL R MD2001-06-28 → cancelled 2013-09-25
- DeStefano, Anthony J MD2023-09-23 active