Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KV4TP callsign genealogy
Currently held by Penley PhD, Michael O
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 KV4TP's current licensee, walking backwards.
- Penley, Michael OTNgranted 2013-06-07cancelled 2013-12-20
Successor callsigns
Callsigns held now by people who previously held KV4TP.
- Penley PhD, Dr Michael OTNgranted 2014-01-25cancelled 2026-03-07