Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1NNR callsign genealogy
Currently held by ROSARIO, NIKKI N
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 N1NNR's current licensee, walking backwards.
- ROSARIO, NIKKI NMAgranted 2012-12-14cancelled 2015-01-21
Successor callsigns
Callsigns held now by people who previously held N1NNR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1NNR, oldest first.
- CROWLEY, MICHAEL A RI1992-09-29 → cancelled 2004-09-30
- ROSARIO, NIKKI N AL2025-04-08 active