Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0SMS callsign genealogy
Currently held by MONDT, FRANK D
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 N0SMS's current licensee, walking backwards.
- Sparks, Sarah MCOgranted 2016-03-10cancelled 2016-04-01
Successor callsigns
Callsigns held now by people who previously held N0SMS.
- Sparks, Sarah MCOgranted 2024-03-22
All historical holders
Every license row we've seen with the callsign N0SMS, oldest first.
- MONDT, FRANK D MO2002-04-23 → cancelled 2014-05-13
- Sparks, Sarah M CO2016-04-01 → cancelled 2024-03-22