Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AD0AO callsign genealogy
Currently held by OLASOV, ALVIN 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 AD0AO's current licensee, walking backwards.
- OLASOV, ALVIN DSCgranted 1999-02-18cancelled 2000-06-13
Successor callsigns
Callsigns held now by people who previously held AD0AO.
No current licensee on record previously held this callsign.