Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5OSO callsign genealogy
Currently held by Wheeler, James E
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 N5OSO's current licensee, walking backwards.
- Wheeler, James ETXgranted 2016-03-21cancelled 2016-04-15
Successor callsigns
Callsigns held now by people who previously held N5OSO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5OSO, oldest first.
- LIPPARD, CLARENCE M TX1989-06-27 → cancelled 2001-06-28
- Wheeler, James E TX2026-01-31 active