Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1DNH callsign genealogy
Currently held by Hallbach, David K
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 K1DNH's current licensee, walking backwards.
- Hallbach, David KNHgranted 2022-03-08cancelled 2022-04-01
Successor callsigns
Callsigns held now by people who previously held K1DNH.
No current licensee on record previously held this callsign.