Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KZ4P callsign genealogy
Currently held by GADEGBEKU, POLYCARP K
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 KZ4P's current licensee, walking backwards.
- Francis, Mark JPAgranted 2024-02-07cancelled 2024-04-19
Successor callsigns
Callsigns held now by people who previously held KZ4P.
- HILL, BRIAN DCAgranted 2022-03-29
All historical holders
Every license row we've seen with the callsign KZ4P, oldest first.
- GADEGBEKU, POLYCARP K SC2009-10-06 → cancelled 2015-08-26
- HILL, BRIAN D CA2017-09-15 → cancelled 2022-03-29
- Francis, Mark J PA2024-04-19 active