Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0CTT callsign genealogy
Currently held by Frenzel, Shawn
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 W0CTT's current licensee, walking backwards.
- Frenzel, ShawnARgranted 2020-10-09cancelled 2021-01-30
Successor callsigns
Callsigns held now by people who previously held W0CTT.
No current licensee on record previously held this callsign.