Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7TWN callsign genealogy
Currently held by Chen, Teng F
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 K7TWN's current licensee, walking backwards.
- Chen, Teng FAKgranted 2022-12-08cancelled 2022-12-30
Successor callsigns
Callsigns held now by people who previously held K7TWN.
No current licensee on record previously held this callsign.