Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4COH callsign genealogy
Currently held by O'Connell, Sean D
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 KJ4COH's current licensee, walking backwards.
- O CONNELL, SEAN DNCgranted 2008-02-28cancelled 2008-03-10
Successor callsigns
Callsigns held now by people who previously held KJ4COH.
- O'Connell, Sean DSDgranted 2020-01-28