Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0MDF callsign genealogy
Currently held by HARRINGTON, DAREL P
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 K0MDF's current licensee, walking backwards.
- KF0KSQcancelledDarel Harrington Memorial Radio StationNDgranted 2022-11-04cancelled 2024-09-17
Successor callsigns
Callsigns held now by people who previously held K0MDF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0MDF, oldest first.
- HARRINGTON, DAREL P ND2016-06-13 → cancelled 2022-06-08
- Darel Harrington Memorial Radio Station ND2024-09-17 active