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

KO4RXH

Cancelled

HELLER SR, MICHAEL K

Location: KERNERSVILLE, NC
Class: Technician
Granted: 2021-07-15
Expires: 2031-07-15
FRN: 0031097967

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Vanity availability

Available

Available now

KO4RXH cleared its 2-year hold on 2024-11-07. Eligible for vanity application.

Last held by HELLER SR, MICHAEL 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

KT5JXPactive· T
HELLER SR, MICHAEL KNCgranted 2022-11-08

License history

0 events

No recorded events.

More vanity slots coming available

From North Carolina

All →

K4LWW 2026-09-10
K4ONS 2026-09-10
KG4TPH 2026-09-10
KK4LNB 2026-09-10
KK4LND 2026-09-10

Starting with KO4

All →

KO4UTL FL · 2026-09-13
KO4PTL KY · 2026-09-17
KO4OSB VA · 2026-09-21
KO4TMC FL · 2026-09-21
KO4YVJ FL · 2026-09-24

Full history → Vanity availability → Callsign genealogy →