Confidence: Medium · Source: FCC ULS · As of 2026-09-15
K1DNC callsign genealogy
Currently held by SANDERSON, JOHN R
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 K1DNC's current licensee, walking backwards.
- Walko, David BMEgranted 2017-02-22cancelled 2017-05-27
Successor callsigns
Callsigns held now by people who previously held K1DNC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1DNC, oldest first.
- SANDERSON, JOHN R MA1994-02-22 → cancelled 2006-02-23
- Walko, David B ME2017-05-27 active