Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7JAM callsign genealogy
Currently held by MEISTER, JOHN 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 W7JAM's current licensee, walking backwards.
- Moore, James AORgranted 2019-02-05cancelled 2020-01-28
Successor callsigns
Callsigns held now by people who previously held W7JAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7JAM, oldest first.
- MEISTER, JOHN A WA2007-10-24 → cancelled 2020-01-08
- Moore, James A OR2020-01-28 active