Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1AAF callsign genealogy
Currently held by GROFF, RICHARD R
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 K1AAF's current licensee, walking backwards.
- FOLEY, SEAN MRIgranted 2023-10-04cancelled 2024-05-11
Successor callsigns
Callsigns held now by people who previously held K1AAF.
All historical holders
Every license row we've seen with the callsign K1AAF, oldest first.
- GROFF, RICHARD R CT1997-02-14 → cancelled 2009-02-18
- BLACKSTOCK, MICHAEL K MS2015-09-29 → cancelled 2017-08-18
- FOLEY, SEAN M RI2024-05-11 → cancelled 2024-08-30