Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1LU callsign genealogy
Currently held by Mc Cobb Jr, James 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 K1LU's current licensee, walking backwards.
- Mc Cobb Jr, James EMAgranted 1998-08-31cancelled 2006-01-07
Successor callsigns
Callsigns held now by people who previously held K1LU.
- UMINA, LEONARD JAZgranted 2003-09-20cancelled 2011-08-16
All historical holders
Every license row we've seen with the callsign K1LU, oldest first.
- UMINA, LEONARD J CA1997-07-15 → cancelled 2003-09-20
- Mc Cobb Jr, James E MA2015-10-13 active