Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5MUS callsign genealogy
Currently held by MANNION, ROBERT J
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 N5MUS's current licensee, walking backwards.
- Mannion, Robert JTNgranted 2006-01-12cancelled 2006-02-28
Successor callsigns
Callsigns held now by people who previously held N5MUS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5MUS, oldest first.
- MANNION, ROBERT J TX1988-07-05 → cancelled 2000-07-06
- Mannion, Robert J MI2015-12-29 active