Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4SP callsign genealogy
Currently held by Penick, Scott W
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 AB4SP's current licensee, walking backwards.
- Penick, Scott WKYgranted 2025-03-04cancelled 2025-06-14
Successor callsigns
Callsigns held now by people who previously held AB4SP.
- W4DHDcancelledSouth Louisville Amateur GroupKYgranted 2010-02-02cancelled 2018-07-31
All historical holders
Every license row we've seen with the callsign AB4SP, oldest first.
- EASLEY JR, WILLIAM A AL1990-01-02 → cancelled 2002-03-07
- South Louisville Amateur Group KY2006-04-18 → cancelled 2010-02-02
- Penick, Scott W KY2025-06-14 active