Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB4P callsign genealogy
Currently held by SANTIFF, WILLIAM F
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 KB4P's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KB4P.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4P, oldest first.
- SANTIFF, WILLIAM F MD2015-12-24 → cancelled 2022-07-15
- WIZEMAN, BURTON D FL2024-08-03 active