Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9RDH callsign genealogy
Currently held by Harrison, R Daniel
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 K9RDH's current licensee, walking backwards.
- Harrison, R DanielINgranted 2014-11-07cancelled 2021-03-23
Successor callsigns
Callsigns held now by people who previously held K9RDH.
No current licensee on record previously held this callsign.