Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SB callsign genealogy
Currently held by Rumley, Patrick V
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 K4SB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4SB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4SB, oldest first.
- Sleight, Edward W GA2007-05-30 → cancelled 2012-12-16
- Rumley, Patrick V FL2024-10-12 active