Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3GM callsign genealogy
Currently held by KLIMCHENKO, SERGEY B
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 AB3GM's current licensee, walking backwards.
- KLIMCHENKO, SERGEY BMDgranted 2007-10-19cancelled 2007-11-13
Successor callsigns
Callsigns held now by people who previously held AB3GM.
- KLIMCHENKO, SERGEY BMDgranted 2017-10-05