Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0WH callsign genealogy
Currently held by Madigan, Thomas E
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 N0WH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N0WH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0WH, oldest first.
- WESTSIDE HAMSTERS AMATEUR RADIO CLUB MO2011-06-04 → cancelled 2023-06-06
- Madigan, Thomas E MN2023-06-23 active