Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6WPT callsign genealogy
Currently held by SULLIVAN, RONOLD E
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 K6WPT's current licensee, walking backwards.
- Mattos, WilsonCAgranted 2018-09-19cancelled 2018-10-10
Successor callsigns
Callsigns held now by people who previously held K6WPT.
- SULLIVAN, RONOLD ENVgranted 2015-09-15cancelled 2016-03-25
All historical holders
Every license row we've seen with the callsign K6WPT, oldest first.
- SULLIVAN, RONOLD E NV2015-08-08 → cancelled 2015-09-15
- Mattos, Wilson FL2018-10-10 active