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

KK4MMX

Cancelled

Kirby, Heather C

Location: Palatka, FL
Class: Technician
Granted: 2012-11-08
Expires: 2022-11-08
FRN: 0022173397

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Vanity availability

Available

Available now

KK4MMX cleared its 2-year hold on 2017-05-26. Eligible for vanity application.

Last held by Kirby, Heather C (FL).

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

W4MDXactive· T
Kirby, Heather CFLgranted 2025-05-30

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

K4CYG 2026-09-10
K4YDD 2026-09-10
KG4QXI 2026-09-10
KG4RVV 2026-09-10
KG4VAB 2026-09-10

Starting with KK4

All →

KK4LMT KY · 2026-09-10
KK4LMV FL · 2026-09-10
KK4LMX VA · 2026-09-10
KK4LMZ FL · 2026-09-10
KK4LNB NC · 2026-09-10

Full history → Vanity availability → Callsign genealogy →