Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ4TD callsign genealogy
Currently held by CALVO, YLDELISA
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 AJ4TD's current licensee, walking backwards.
- CALVO, YLDELISAFLgranted 2009-08-07cancelled 2009-10-06
Successor callsigns
Callsigns held now by people who previously held AJ4TD.
No current licensee on record previously held this callsign.