Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7WJP callsign genealogy
Currently held by Piippo, Walter 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 K7WJP's current licensee, walking backwards.
- Piippo, Walter JMTgranted 2006-12-12cancelled 2012-02-22
Successor callsigns
Callsigns held now by people who previously held K7WJP.
- PALMER JR, WILLIAM JALgranted 2001-05-30cancelled 2002-03-29
All historical holders
Every license row we've seen with the callsign K7WJP, oldest first.
- PALMER JR, WILLIAM J AL1998-12-30 → cancelled 2001-05-30
- Piippo, Walter J MT2022-01-29 active