Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7WO callsign genealogy
Currently held by Kramer, Harry S
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 AD7WO's current licensee, walking backwards.
- Kramer, Harry SWAgranted 2008-06-30cancelled 2008-09-29
Successor callsigns
Callsigns held now by people who previously held AD7WO.
No current licensee on record previously held this callsign.