Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KL7SH callsign genealogy
Currently held by DAY, RICHARD L
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 KL7SH's current licensee, walking backwards.
- Gehring, David JAKgranted 2015-04-07cancelled 2015-10-09
Successor callsigns
Callsigns held now by people who previously held KL7SH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KL7SH, oldest first.
- DAY, RICHARD L AK1988-02-02 → cancelled 2000-02-03
- Gehring, David J KS2026-04-25 active