Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NN9T callsign genealogy
Currently held by UPPAL, SANJAY
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 NN9T's current licensee, walking backwards.
- HAAS, ROBERT CILgranted 2003-09-30cancelled 2009-05-05
Successor callsigns
Callsigns held now by people who previously held NN9T.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NN9T, oldest first.
- UPPAL, SANJAY CA1997-04-04 → cancelled 2009-04-07
- HAAS, ROBERT C IL2019-03-09 active