Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N2UD callsign genealogy
Currently held by Whelan, Daniel W
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 N2UD's current licensee, walking backwards.
- Zirolli, Thomas AFLgranted 2018-12-28cancelled 2019-04-09
Successor callsigns
Callsigns held now by people who previously held N2UD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N2UD, oldest first.
- Whelan, Daniel W NY2001-05-22 → cancelled 2013-05-23
- Handy, Brian N MT2013-06-15 → cancelled 2016-11-29
- Zirolli, Thomas A FL2019-04-09 active