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

KC3TNI

Cancelled

OBrien, Patrick J

Location: Oakland, MD
Class: Technician
Granted: 2022-02-22
Expires: 2032-02-22
FRN: 0031982838

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Vanity availability

Available

Available now

KC3TNI cleared its 2-year hold on 2024-03-14. Eligible for vanity application.

Last held by OBrien, Patrick J (MD).

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

N3OKSactive· T
OBrien, Patrick JMDgranted 2022-03-15

License history

0 events

No recorded events.

More vanity slots coming available

From Maryland

All →

N3JTJ 2026-09-12
KB3ZFH 2026-09-13
KC3MJH 2026-09-13
KC3ZPN 2026-09-13
KB3HRU 2026-09-18

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 →