Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NF0O callsign genealogy
Currently held by Christopherson, Dale 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 NF0O's current licensee, walking backwards.
- Christopherson, Dale ASDgranted 2014-09-17cancelled 2021-11-19
Successor callsigns
Callsigns held now by people who previously held NF0O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NF0O, oldest first.
- PANUSKA, HAROLD J MN2009-04-24 → cancelled 2021-07-20
- Christopherson, Dale A SD2021-11-19 active