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

KC3UBK

Cancelled

PROSTKO, DOUGLAS

Location: DOWNINGTOWN, PA
Class: General
Granted: 2022-04-18
Expires: 2032-04-18
FRN: 0032265720

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Vanity availability

Available

Available now

KC3UBK cleared its 2-year hold on 2024-05-08. Eligible for vanity application.

Last held by PROSTKO, DOUGLAS (PA).

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

KC3UCPcancelled· G
PROSTKO, DOUGLASPAgranted 2022-04-18cancelled 2022-05-28

License history

0 events

No recorded events.

More vanity slots coming available

From Pennsylvania

All →

KB3HBB 2026-09-10
KB3ZFA 2026-09-10
KB3ZFB 2026-09-10
KC3ZNR 2026-09-10
KC3ZQJ 2026-09-10

Starting with KC3

All →

KC3ZNR PA · 2026-09-10
KC3ZQJ PA · 2026-09-10
KC3MJH MD · 2026-09-13
KC3WYD PA · 2026-09-13
KC3ZPN MD · 2026-09-13

Full history → Vanity availability → Callsign genealogy →