Confidence: Medium · Source: FCC ULS · As of 2026-09-11

KN6FXX

Cancelled

Treffert, Thomas

Location: San Francisco, CA
Class: Amateur Extra
Granted: 2019-11-22
Expires: 2029-11-22
FRN: 0028982866

Get notified about status changes and vanity availability for this callsign.

Vanity availability

Available

Available now

KN6FXX cleared its 2-year hold on 2022-01-23. Eligible for vanity application.

Last held by Treffert, Thomas (CA).

Confidence: High

Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.

Callsign genealogy

Full chain →

Prior holders later became

KZ9Tactive· E
Treffert, ThomasTXgranted 2020-01-24

License history

0 events

No recorded events.

More vanity slots coming available

From California

All →

AG6QB 2026-09-11
KC6OMJ 2026-09-11
KG6NES 2026-09-11
KG6NET 2026-09-11
KJ6ZPK 2026-09-11

Starting with KN6

All →

KN6AU CA · 2026-09-21
KN6AW LA · 2026-09-21
KN6DOQ CA · 2026-09-27
KN6KEY CA · 2026-09-27
KN6WSE CA · 2026-09-27

Full history → Vanity availability → Callsign genealogy →