Confidence: Medium · Source: FCC ULS · As of 2026-09-10

KM4ZMV

Cancelled

Helbling, John K

Location: Hendersonville, NC
Class: Amateur Extra
Granted: 2016-12-09
Expires: 2026-12-09
FRN: 0026083139

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Vanity availability

Available

Available now

KM4ZMV cleared its 2-year hold on 2019-03-28. Eligible for vanity application.

Last held by Helbling, John K (NC).

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

K4JKHactive· E
Helbling, John KearnsNCgranted 2017-03-28

License history

0 events

No recorded events.

More vanity slots coming available

From North Carolina

All →

KG4ULQ 2026-09-11
KG4VAK 2026-09-11
KG4VAL 2026-09-11
KG4VAO 2026-09-11
KG4VAP 2026-09-11

Starting with KM4

All →

KM4AHK PA · 2026-09-21
KM4JCT GA · 2026-09-28
KM4FBY SC · 2026-10-01
KM4IS NC · 2026-10-03
KM4NGF AL · 2026-10-07

Full history → Vanity availability → Callsign genealogy →