Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1FRK callsign genealogy
Currently held by Sedlik, Frank
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 W1FRK's current licensee, walking backwards.
- Sedlik, FrankCTgranted 2014-01-21cancelled 2017-06-06
Successor callsigns
Callsigns held now by people who previously held W1FRK.
No current licensee on record previously held this callsign.