Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9TCH callsign genealogy
Currently held by HALL, THOMAS C
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 K9TCH's current licensee, walking backwards.
- Hall, Thomas CILgranted 2013-08-16cancelled 2013-11-09
Successor callsigns
Callsigns held now by people who previously held K9TCH.
- SHERIDAN, GAIL FWYgranted 2010-05-28cancelled 2019-04-26
All historical holders
Every license row we've seen with the callsign K9TCH, oldest first.
- SHERIDAN, GAIL F WY2004-11-23 → cancelled 2010-05-28
- HALL, THOMAS C IL2025-08-07 active