Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4ZJK callsign genealogy
Currently held by Schulz, Erik A
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 W4ZJK's current licensee, walking backwards.
- Schulz, Erik ACOgranted 2022-02-22cancelled 2026-02-20
Successor callsigns
Callsigns held now by people who previously held W4ZJK.
- STRANGE, ARTHUR DNCgranted 2019-07-12
All historical holders
Every license row we've seen with the callsign W4ZJK, oldest first.
- STRANGE, ARTHUR D VA2007-10-10 → cancelled 2009-08-22
- Schulz, Erik A CO2026-02-20 active