Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR7U callsign genealogy
Currently held by HUMPHREY, JERRY 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 KR7U's current licensee, walking backwards.
- HUMPHREY, JERRY LOKgranted 2006-01-10cancelled 2008-03-18
Successor callsigns
Callsigns held now by people who previously held KR7U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KR7U, oldest first.
- PERROTTA, JOHN AZ1996-07-15 → cancelled 2004-01-18
- HUMPHREY, JERRY L WA2018-01-09 active