Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC1NF callsign genealogy
Currently held by KRELLENSTEIN, ADAM
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 AC1NF's current licensee, walking backwards.
- KRELLENSTEIN, ADAMNHgranted 2022-05-18cancelled 2022-06-06
Successor callsigns
Callsigns held now by people who previously held AC1NF.
No current licensee on record previously held this callsign.