Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5UH callsign genealogy
Currently held by COOK, PHILIP D
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 N5UH's current licensee, walking backwards.
- COOK, PHILIP DTXgranted 2016-08-16cancelled 2019-04-16
Successor callsigns
Callsigns held now by people who previously held N5UH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5UH, oldest first.
- UNIVERSITY OF HOUSTON ARC TX2007-04-12 → cancelled 2019-03-28
- COOK, PHILIP D TX2019-04-16 active