Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1YTB callsign genealogy
Currently held by Marshall, Ralph B
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 K1YTB's current licensee, walking backwards.
- Marshall, Ralph BFLgranted 2015-11-05cancelled 2015-11-24
Successor callsigns
Callsigns held now by people who previously held K1YTB.
No current licensee on record previously held this callsign.