Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0RTO callsign genealogy
Currently held by Collins, Richard W
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 W0RTO's current licensee, walking backwards.
- Menchak, William KMOgranted 2022-04-04cancelled 2024-10-16
Successor callsigns
Callsigns held now by people who previously held W0RTO.
- Collins, Richard WMSgranted 2020-12-15
All historical holders
Every license row we've seen with the callsign W0RTO, oldest first.
- LUEDERS, LOWELL G MO1999-06-15 → cancelled 2011-06-16
- Collins, Richard W MN2020-10-14 → cancelled 2020-12-15
- Menchak, William K MO2024-10-16 active