Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD6DT callsign genealogy
Currently held by DE GUZMAN, TERESA L
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 AD6DT's current licensee, walking backwards.
- DE GUZMAN, TERESA Lcancelled 1997-11-12
Successor callsigns
Callsigns held now by people who previously held AD6DT.
No current licensee on record previously held this callsign.