Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN7P callsign genealogy
Currently held by KEEN, WALTER 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 KN7P's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KN7P.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KN7P, oldest first.
- KOITO, HIKARU WA2005-10-20 → cancelled 2017-12-01
- KEEN, WALTER C WA2017-12-19 active