Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0PH callsign genealogy
Currently held by Seibold, Donna L
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 AB0PH's current licensee, walking backwards.
- SEIBOLD, DONNA LMOgranted 1997-06-17cancelled 2000-10-17
Successor callsigns
Callsigns held now by people who previously held AB0PH.
No current licensee on record previously held this callsign.