Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7SIL callsign genealogy
Currently held by O'Brien, Gerry A
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 K7SIL's current licensee, walking backwards.
- O'Brien, Gerry AWAgranted 2012-04-05cancelled 2014-04-15
Successor callsigns
Callsigns held now by people who previously held K7SIL.
- O'Brien, Gerry AWAgranted 2024-02-10