Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6TFR callsign genealogy
Currently held by DI PAOLO, OSVALDO R
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 N6TFR's current licensee, walking backwards.
- Dipaolo, Osvaldo RCAgranted 2013-01-17cancelled 2013-02-09
Successor callsigns
Callsigns held now by people who previously held N6TFR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6TFR, oldest first.
- DI PAOLO, OSVALDO R CA1999-06-30 → cancelled 2011-07-01
- Dipaolo, Osvaldo R CA2023-05-13 active