Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N8OHO callsign genealogy
Currently held by GRIFFIN, MARK
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 N8OHO's current licensee, walking backwards.
- GRIFFIN, MARK OOHgranted 2008-10-23cancelled 2015-09-15
Successor callsigns
Callsigns held now by people who previously held N8OHO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N8OHO, oldest first.
- MULLEN III, ALVIN R OH2003-08-16 → cancelled 2015-08-18
- GRIFFIN, MARK OH2025-08-12 active