Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5ZSU callsign genealogy
Currently held by HUMPHREYS JR, JAMES T
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 K5ZSU's current licensee, walking backwards.
- HUMPHREYS JR, JAMES TMSgranted 1994-03-01cancelled 2001-07-06
Successor callsigns
Callsigns held now by people who previously held K5ZSU.
No current licensee on record previously held this callsign.