Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4UIE callsign genealogy
Currently held by CALLAHAN, JEFFERY W
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 K4UIE's current licensee, walking backwards.
- CALLAHAN, JEFFERY WGAgranted 1997-10-21cancelled 2000-08-11
Successor callsigns
Callsigns held now by people who previously held K4UIE.
No current licensee on record previously held this callsign.