Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N7WTR callsign genealogy
Currently held by Mahin, Donald A
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 N7WTR's current licensee, walking backwards.
- Mahin, Donald ANVgranted 2013-02-27cancelled 2014-07-01
Successor callsigns
Callsigns held now by people who previously held N7WTR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7WTR, oldest first.
- WELLENSTEIN, THOMAS R AZ1992-03-03 → cancelled 2004-03-04
- Mahin, Donald A NV2024-04-16 active