Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9NWN callsign genealogy
Currently held by Obenchain, Robert 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 W9NWN's current licensee, walking backwards.
- Obenchain, Robert DINgranted 2007-11-07cancelled 2008-07-25
Successor callsigns
Callsigns held now by people who previously held W9NWN.
- BRAYSHAW, DAVID ETXgranted 2006-08-08cancelled 2018-11-06