Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ODU callsign genealogy
Currently held by COSEGLIA, FRANK 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 K4ODU's current licensee, walking backwards.
- DEAL III, WALTER FVAgranted 2021-06-07cancelled 2021-12-21
Successor callsigns
Callsigns held now by people who previously held K4ODU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4ODU, oldest first.
- COSEGLIA, FRANK W AL2005-04-13 → cancelled 2017-04-25
- Deal III, Walter F VA2021-12-21 active