Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1FRQ callsign genealogy
Currently held by AMBRISCO JR, STEPHEN G
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 N1FRQ's current licensee, walking backwards.
- AMBRISCO, STEPHEN GVTgranted 2004-03-03cancelled 2004-03-31
Successor callsigns
Callsigns held now by people who previously held N1FRQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1FRQ, oldest first.
- AMBRISCO JR, STEPHEN G CT1988-05-10 → cancelled 2000-05-11
- AMBRISCO JR, STEPHEN G VT2024-04-12 active