Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA7RCK callsign genealogy
Currently held by KNOLL, ROBIN C
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 WA7RCK's current licensee, walking backwards.
- KNOLL, ROBIN CORgranted 2008-01-22cancelled 2008-07-12
Successor callsigns
Callsigns held now by people who previously held WA7RCK.
- KNOLL, ROBIN CORgranted 2019-08-27