Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1OL callsign genealogy
Currently held by Szabo, Carol
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 K1OL's current licensee, walking backwards.
- Blouse, Stacey JMAgranted 2026-03-11cancelled 2026-06-13
Successor callsigns
Callsigns held now by people who previously held K1OL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1OL, oldest first.
- HARPER, ROBERT J AL2002-05-04 → cancelled 2014-05-06
- Szabo, Carol MA2014-05-23 → cancelled 2026-05-27
- Blouse, Stacey J MA2026-06-13 active