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

KB3MRT

Cancelled

SLEEMAN, SEAN T

Location: Pittsburgh, PA
Class: Technician
Granted: 2002-12-18
Expires: 2013-01-12
Previous call: N3NWR
FRN: 0007824485

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Vanity availability

Available

Available now

KB3MRT cleared its 2-year hold on 2011-03-20. Eligible for vanity application.

Last held by SLEEMAN, SEAN T (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 →

Previously held by current licensee

N3NWRactive· G
SLEEMAN, SEAN TPAgranted 2019-02-15

Prior holders later became

N3NWRactive· G
SLEEMAN, SEAN TPAgranted 2019-02-15

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 KB3

All →

KB3HBB PA · 2026-09-10
KB3ZFA PA · 2026-09-10
KB3ZFB PA · 2026-09-10
KB3ZFD PA · 2026-09-11
KB3ZFE PA · 2026-09-13

Full history → Vanity availability → Callsign genealogy →