Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0MTN callsign genealogy
Currently held by MOLBERG, MARK A
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 N0MTN's current licensee, walking backwards.
- MOLBERG, MARK ACOgranted 2014-12-01cancelled 2015-09-15
Successor callsigns
Callsigns held now by people who previously held N0MTN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0MTN, oldest first.
- ARNOLD, DAVID B MO1990-12-24 → cancelled 2002-12-25
- MOLBERG, MARK A CO2025-08-05 active