Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5YAK callsign genealogy
Currently held by DENMAN JR, JAMES 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 W5YAK's current licensee, walking backwards.
- Yakubovsky, Mark LTXgranted 2007-05-15cancelled 2011-04-30
Successor callsigns
Callsigns held now by people who previously held W5YAK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5YAK, oldest first.
- DENMAN JR, JAMES B TX1998-04-16 → cancelled 2010-04-17
- Yakubovsky, Mark L TX2021-03-10 active