Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KU4YY callsign genealogy
Currently held by CALHOUN, TIMOTHY 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 KU4YY's current licensee, walking backwards.
- CALHOUN, TIMOTHY Ecancelled 1999-03-29
Successor callsigns
Callsigns held now by people who previously held KU4YY.
No current licensee on record previously held this callsign.