Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9PGM callsign genealogy
Currently held by MAGNER III, PHILIP G
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 W9PGM's current licensee, walking backwards.
- KNITTER, MICHAEL RILgranted 2026-04-07cancelled 2026-05-27
Successor callsigns
Callsigns held now by people who previously held W9PGM.
- KNITTER, MICHAEL RILgranted 2026-04-07cancelled 2026-05-27
All historical holders
Every license row we've seen with the callsign W9PGM, oldest first.
- MAGNER III, PHILIP G IN2007-06-09 → cancelled 2019-06-11
- KNITTER, MICHAEL R IL2025-09-03 → cancelled 2026-04-07
- KNITTER, MICHAEL R TX2026-05-27 active