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

K3OSO

Cancelled

Grachev, Aleksey

Location: Westminster, CO
Class: Amateur Extra
Granted: 2009-05-05
Expires: 2019-05-05
Previous call: KD0HHE
FRN: 0018686162

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Vanity availability

Available

Available now

K3OSO cleared its 2-year hold on 2013-01-31. Eligible for vanity application.

Last held by Grachev, Aleksey (CO).

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 →

Previously held by current licensee

KD0HHEcancelled· T
Grachev, Aleksey GCOgranted 2009-04-13cancelled 2009-05-05

Prior holders later became

AF0Eactive· E
Grachev, AlekseyCOgranted 2021-01-06

License history

0 events

No recorded events.

More vanity slots coming available

From Colorado

All →

KB7PWB 2026-09-10
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KD0TBW 2026-09-11

Starting with K3

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K3VJP PA · 2026-10-09

Full history → Vanity availability → Callsign genealogy →