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

KB1UOI

Cancelled

Donchev, Mladen D

Location: Flower Mound, TX
Class: Amateur Extra
Granted: 2020-07-03
Expires: 2030-07-20
FRN: 0019489152

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Vanity availability

Available

Available now

KB1UOI cleared its 2-year hold on 2026-03-26. Eligible for vanity application.

Last held by Donchev, Mladen D (TX).

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

K1ILZactive· E
Donchev, Mladen DMEgranted 2024-03-26

License history

0 events

No recorded events.

More vanity slots coming available

From Texas

All →

K2UMA 2026-09-10
K9CWO 2026-09-10
KB5SLO 2026-09-10
KD5C 2026-09-10
KD5TUE 2026-09-10

Starting with KB1

All →

KB1ICB ME · 2026-09-10
KB1YQB NH · 2026-09-10
KB1YQC NH · 2026-09-10
KB1YQD NH · 2026-09-10
KB1HYE FL · 2026-09-12

Full history → Vanity availability → Callsign genealogy →