Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KM4NLM callsign genealogy
Currently held by CONE, 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 KM4NLM's current licensee, walking backwards.
- Michael, Nicholas LALgranted 2026-07-14cancelled 2026-08-01
Successor callsigns
Callsigns held now by people who previously held KM4NLM.
- CONE, DAVID LSCgranted 2015-09-24cancelled 2021-03-16
All historical holders
Every license row we've seen with the callsign KM4NLM, oldest first.
- CONE, DAVID L SC2015-09-24 → cancelled 2015-10-13
- MICHAEL, NICHOLAS L AL2026-08-01 active