Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4TKP callsign genealogy
Currently held by CLARK, STEPHEN L
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 N4TKP's current licensee, walking backwards.
- PHILLIPS, TAMA KKYgranted 2025-02-19cancelled 2025-04-18
Successor callsigns
Callsigns held now by people who previously held N4TKP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4TKP, oldest first.
- CLARK, STEPHEN L FL2008-02-01 → cancelled 2020-04-10
- PHILLIPS, TAMA K KY2025-04-18 active