Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RTS callsign genealogy
Currently held by SEAL, RICHARD T
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 K4RTS's current licensee, walking backwards.
- KD4UPFcancelledcancelled 1998-01-08
Successor callsigns
Callsigns held now by people who previously held K4RTS.
No current licensee on record previously held this callsign.