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

KM4OIO

Cancelled

Stewart, Robert R

Location: Columbia, AL
Class: Amateur Extra
Granted: 2015-10-22
Expires: 2025-10-22
FRN: 0024990103

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Vanity availability

Available

Available now

KM4OIO cleared its 2-year hold on 2025-04-07. Eligible for vanity application.

Last held by Stewart, Robert R (AL).

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

N4JVactive· E
Stewart, Robert RALgranted 2023-04-08

License history

0 events

No recorded events.

More vanity slots coming available

From Alabama

All →

KG4SUF 2026-09-10
KQ4TEB 2026-09-10
KQ4UQY 2026-09-10
KQ4UVF 2026-09-10
KZ4KU 2026-09-10

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 →