Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC5UBL callsign genealogy
Currently held by PALERMO, TODD S
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 KC5UBL's current licensee, walking backwards.
- Palermo, Todd SOHgranted 2014-01-10cancelled 2014-01-31
Successor callsigns
Callsigns held now by people who previously held KC5UBL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC5UBL, oldest first.
- PALERMO, TODD S TX1998-12-28 → cancelled 2008-04-22
- Palermo, Todd S OH2024-04-09 active