Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7TTA callsign genealogy
Currently held by SHEARER, GEORGE E
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 K7TTA's current licensee, walking backwards.
- PRESTON, KARIN EIDgranted 2007-09-05cancelled 2015-12-15
Successor callsigns
Callsigns held now by people who previously held K7TTA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7TTA, oldest first.
- SHEARER, GEORGE E WA1988-04-19 → cancelled 2000-04-20
- PRESTON, KARIN E ID2015-12-15 active