Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4LER callsign genealogy
Currently held by ROBERTS, LARRY 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 K4LER's current licensee, walking backwards.
- RUIZ, LARRY EFLgranted 2014-05-08cancelled 2022-01-07
Successor callsigns
Callsigns held now by people who previously held K4LER.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4LER, oldest first.
- ROBERTS, LARRY E SC2009-08-25 → cancelled 2021-08-26
- Ruiz, Larry E FL2022-01-07 active