Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7AOB callsign genealogy
Currently held by NELSON, JOHN 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 W7AOB's current licensee, walking backwards.
- Nikolaus, Storch MWAgranted 2013-12-17cancelled 2015-11-10
Successor callsigns
Callsigns held now by people who previously held W7AOB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7AOB, oldest first.
- NELSON, JOHN A WA1998-07-30 → cancelled 2003-09-21
- STORCH, NIKOLAUS WA2015-11-10 active