Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0OTF callsign genealogy
Currently held by STIVER, HAROLD G
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 N0OTF's current licensee, walking backwards.
- Freund, FrederickCOgranted 2016-06-20cancelled 2016-07-09
Successor callsigns
Callsigns held now by people who previously held N0OTF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0OTF, oldest first.
- STIVER, HAROLD G KS1996-04-01 → cancelled 2003-07-18
- Freund, Frederick CO2016-07-09 active