Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0FO callsign genealogy
Currently held by KALINA, JOHN C
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 AD0FO's current licensee, walking backwards.
- KALINA, JOHN CMNgranted 2012-05-12cancelled 2013-10-18
Successor callsigns
Callsigns held now by people who previously held AD0FO.
No current licensee on record previously held this callsign.