Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KH6CTR callsign genealogy
Currently held by WATANABE, MARK S
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 KH6CTR's current licensee, walking backwards.
- Watanabe, Mark SCAgranted 2001-09-26cancelled 2002-04-03
Successor callsigns
Callsigns held now by people who previously held KH6CTR.
No current licensee on record previously held this callsign.