Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0HNK callsign genealogy
Currently held by CITRO, PHILIP M
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 N0HNK's current licensee, walking backwards.
- KATZ, HENRYFLgranted 2024-12-07cancelled 2024-12-27
Successor callsigns
Callsigns held now by people who previously held N0HNK.
- Citro, Philip MCOgranted 2017-08-14
All historical holders
Every license row we've seen with the callsign N0HNK, oldest first.
- CITRO, PHILIP M CO1997-11-10 → cancelled 2000-08-30
- KATZ, HENRY FL2024-12-27 active