Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JUM callsign genealogy
Currently held by PHIFER, ORIS
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 W4JUM's current licensee, walking backwards.
- Miller, Joseph SVAgranted 2008-04-14cancelled 2015-02-10
Successor callsigns
Callsigns held now by people who previously held W4JUM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JUM, oldest first.
- PHIFER, ORIS TN2002-02-13 → cancelled 2014-05-13
- Miller, Joseph S TN2025-04-12 active