Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WW9K callsign genealogy
Currently held by ROBINSON, 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 WW9K's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WW9K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WW9K, oldest first.
- ROBINSON, JOHN A IL2010-08-13 → cancelled 2022-10-18
- Robertson, Eric TX2022-11-04 active