Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WA7TPV callsign genealogy
Currently held by KNUTH, JOHN J
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 WA7TPV's current licensee, walking backwards.
- KNUTH, JOHN JWAgranted 2018-01-30cancelled 2018-02-24
Successor callsigns
Callsigns held now by people who previously held WA7TPV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA7TPV, oldest first.
- KNUTH, JOHN J WA1987-10-20 → cancelled 1999-10-21
- KNUTH, JOHN J WA2018-02-24 active