Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0RM callsign genealogy
Currently held by Ratzlaff, Daniel 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 AB0RM's current licensee, walking backwards.
- Ratzlaff, Daniel DKSgranted 1994-06-08cancelled 2001-07-02
Successor callsigns
Callsigns held now by people who previously held AB0RM.
- Ratzlaff, Daniel DKSgranted 2012-04-25cancelled 2023-07-27