Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7SIR callsign genealogy
Currently held by Stonecliffe, George 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 KB7SIR's current licensee, walking backwards.
- Stonecliffe, George AORgranted 2025-11-25cancelled 2026-03-07
Successor callsigns
Callsigns held now by people who previously held KB7SIR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7SIR, oldest first.
- Stonecliffe, George A OR2013-06-21 → cancelled 2025-06-24
- Stonecliffe, George A OR2026-03-07 active