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

KB3DFI

Cancelled

UNDERWOOD, THOMAS C

Location: SAINT MICHAELS, MD
Class: General
Granted: 1998-11-25
Expires: 2008-11-25
Previous call: N3OLN
FRN: 0017892548

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Vanity availability

Available

Available now

KB3DFI cleared its 2-year hold on 2010-07-11. Eligible for vanity application.

Last held by UNDERWOOD, THOMAS C (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 →

Previously held by current licensee

N3OLNcancelled
cancelled 1998-11-25

Prior holders later became

W3TCUactive· G
UNDERWOOD, THOMAS CMDgranted 2018-04-20

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 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 →