Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3BLK callsign genealogy
Currently held by Klimes, Benjamin L
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 W3BLK's current licensee, walking backwards.
- Klimes, Benjamin LPAgranted 2016-04-13cancelled 2016-05-03
Successor callsigns
Callsigns held now by people who previously held W3BLK.
No current licensee on record previously held this callsign.