Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5UMS callsign genealogy
Currently held by BENEFIEL, BILLY 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 N5UMS's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held N5UMS.
- BENEFIEL, BILLY JTXgranted 2004-05-04cancelled 2006-11-30