Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7OZH callsign genealogy
Currently held by SCHUMACHER, LAWRENCE R
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 W7OZH's current licensee, walking backwards.
- Kirkland, Johnathan DAZgranted 2011-04-08cancelled 2014-01-14
Successor callsigns
Callsigns held now by people who previously held W7OZH.
- Kirkland, Johnathan DAZgranted 2024-09-04
All historical holders
Every license row we've seen with the callsign W7OZH, oldest first.
- SCHUMACHER, LAWRENCE R MT1998-07-17 → cancelled 2010-07-20
- Kirkland, Johnathan D AZ2014-01-14 → cancelled 2014-09-23