Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NO5S callsign genealogy
Currently held by Fitzgerald, Mark P
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 NO5S's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NO5S.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NO5S, oldest first.
- BENTON, WILLIAM H NM1998-12-10 → cancelled 2005-04-14
- Cataouatche District BSA LA2006-10-03 → cancelled 2018-10-04
- Fitzgerald, Mark P OK2018-10-23 active