Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0USG callsign genealogy
Currently held by Mallon, Paul 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 KC0USG's current licensee, walking backwards.
- Mallon, Paul ECOgranted 2024-07-17cancelled 2024-08-06
Successor callsigns
Callsigns held now by people who previously held KC0USG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC0USG, oldest first.
- Mallon, Paul E CO2005-06-17 → cancelled 2017-06-20
- Mallon, Paul E CO2024-08-06 active