Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0JCK callsign genealogy
Currently held by KEEFE, JOSEPH C
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 N0JCK's current licensee, walking backwards.
- KEEFE, JOSEPH CFLgranted 1996-03-29cancelled 2001-06-01
Successor callsigns
Callsigns held now by people who previously held N0JCK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0JCK, oldest first.
- ELLING, LYNN M MN1988-03-29 → cancelled 2000-03-30
- KEEFE, JOSEPH C NM2011-06-14 → cancelled 2023-07-12