Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC5JKN callsign genealogy
Currently held by SIMS, DAVID L
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 KC5JKN's current licensee, walking backwards.
- Sims, DavidCOgranted 2023-11-21cancelled 2023-12-09
Successor callsigns
Callsigns held now by people who previously held KC5JKN.
- Sims, DavidCOgranted 2025-05-06
All historical holders
Every license row we've seen with the callsign KC5JKN, oldest first.
- SIMS, DAVID L NM1994-09-09 → cancelled 2006-09-12
- Sims, David CO2023-12-09 → cancelled 2025-05-06