Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA3ROL callsign genealogy
Currently held by Karol, Matthew 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 KA3ROL's current licensee, walking backwards.
- Karol, Matthew SDEgranted 2006-04-14cancelled 2006-12-05
Successor callsigns
Callsigns held now by people who previously held KA3ROL.
No current licensee on record previously held this callsign.