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

N6MMK

Cancelled

HOLDENER, DONALD K

Location: MILPITAS, CA
Class: Amateur Extra
Granted: 2004-01-12
Expires: 2014-01-04
Previous call: KB6HEM
FRN: 0001904481

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Vanity availability

Available

Available now

N6MMK cleared its 2-year hold on 2009-03-19. Eligible for vanity application.

Last held by HOLDENER, DONALD K (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 →

Previously held by current licensee

KB6HEM
no FCC ULS record on file

Prior holders later became

K6ATFactive· E
HOLDENER, DONALD KCAgranted 2017-01-31

License history

0 events

No recorded events.

More vanity slots coming available

From California

All →

AC2TX 2026-09-10
K6DJM 2026-09-10
KC6JGS 2026-09-10
KC6KGL 2026-09-10
KC6VEU 2026-09-10

Starting with N6

All →

N6SDC CA · 2026-09-14
N6TOE WA · 2026-10-01
N6SLW CA · 2026-10-03
N6ZH NC · 2026-10-04
N6EIS CA · 2026-10-05

Full history → Vanity availability → Callsign genealogy →