uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-11

KO6OQI

Cancelled

Mak, Shum Yi Henry

Location
Torrance, CA
Class
Amateur Extra
Granted
2026-07-29
Expires
2036-07-29
FRN
0038708582
Sign in to watch

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

Vanity availability

717d

Available on 2028-08-28

KO6OQI cancelled on 2026-08-29. Hold ends in 717 days.

Last held by Mak, Shum Yi Henry (CA).

Confidence: High

Cancelled licenses begin the 2-year hold immediately on the cancellation date, so this is the firm release date per §97.19.

Callsign genealogy

Full chain →

Prior holders later became

  1. AK6VZactive· E
    Mak, Shum Yi HenryCAgranted 2026-07-29

License history

4 events
  1. Cancelled
    LICAN
    [LICAN]
  2. Modified
    LIMOD
    [LIMOD]
  3. Systematic grant
    SYSGRT
    [SYSGRT]
  4. License granted
    LIISS
    [LIISS]

More vanity slots coming available

From California

All →

Starting with KO6

All →
Full history → Vanity availability → Callsign genealogy →