Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI7LYP callsign genealogy
Currently held by UNDERWOOD, JOHN B
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 KI7LYP's current licensee, walking backwards.
- UNDERWOOD, JOHN BORgranted 2013-09-18cancelled 2017-03-29
- WH6AVQno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KI7LYP.
No current licensee on record previously held this callsign.