Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB1NF callsign genealogy
Currently held by DeMark, Donald 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 AB1NF's current licensee, walking backwards.
- DeMark, Donald LNHgranted 2010-06-25cancelled 2010-07-14
Successor callsigns
Callsigns held now by people who previously held AB1NF.
- DeMark, Donald LNHgranted 2020-05-21