Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DAT callsign genealogy
Currently held by TESTER, DAVID
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 N4DAT's current licensee, walking backwards.
- TESTER, DAVIDSCgranted 2016-05-19cancelled 2017-03-12
Successor callsigns
Callsigns held now by people who previously held N4DAT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4DAT, oldest first.
- ROMERO, MARIA FL2004-11-30 → cancelled 2017-01-27
- TESTER, DAVID SC2017-03-12 active