Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB9SKY callsign genealogy
Currently held by Adler Planetarium Radio Club
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 WB9SKY's current licensee, walking backwards.
- WB9OKEcancelledAdler Planetarium Radio ClubILgranted 1997-05-01cancelled 2003-03-11
Successor callsigns
Callsigns held now by people who previously held WB9SKY.
No current licensee on record previously held this callsign.