Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0ZWH callsign genealogy
Currently held by REIFSCHNEIDER, SEAN 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 N0ZWH's current licensee, walking backwards.
- Reifschneider, SeanCOgranted 2025-07-02cancelled 2025-07-22
Successor callsigns
Callsigns held now by people who previously held N0ZWH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0ZWH, oldest first.
- REIFSCHNEIDER, SEAN M CO1994-01-04 → cancelled 2006-01-05
- Reifschneider, Sean CO2025-07-22 active