Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9USA callsign genealogy
Currently held by Teng, Marcus 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 KC9USA's current licensee, walking backwards.
- Teng, Marcus SINgranted 2005-04-05cancelled 2005-04-29
Successor callsigns
Callsigns held now by people who previously held KC9USA.
No current licensee on record previously held this callsign.