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

KM4ZRX

Cancelled

Harper, Michael S

Location: Vienna, VA
Class: General
Granted: 2016-12-16
Expires: 2026-12-16
FRN: 0026115832

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Vanity availability

Available

Available now

KM4ZRX cleared its 2-year hold on 2019-02-11. Eligible for vanity application.

Last held by Harper, Michael S (VA).

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

W1APMactive· G
Harper, Michael STXgranted 2017-02-11

License history

0 events

No recorded events.

More vanity slots coming available

From Virginia

All →

KG4VBI 2026-09-12
W4CVH 2026-09-12
KQ4URY 2026-09-13
KD4SUS 2026-09-14
KD4SVO 2026-09-14

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 →