Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9JON callsign genealogy
Currently held by ANDERSON, FRANK P
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 W9JON's current licensee, walking backwards.
- Robinson, Jonathan CNMgranted 2011-08-23cancelled 2011-09-16
Successor callsigns
Callsigns held now by people who previously held W9JON.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9JON, oldest first.
- ANDERSON, FRANK P GA1999-03-03 → cancelled 2011-03-04
- Robinson, Jonathan C FL2022-03-04 active