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

W3DDF

Active

WIRTH JR, CHARLES F

Location: SILVER SPRING, MD
Class: Amateur Extra
Granted: 2018-11-20
Expires: 2029-02-13
Previous call: WB3DDF
FRN: 0011502788

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Vanity availability

Held

Currently held

W3DDF is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

WB3DDFcancelled· A
WIRTH JR, CHARLES FMDgranted 2006-01-04cancelled 2009-02-13

License history

0 events

No recorded events.

More vanity slots coming available

From Maryland

All →

KB3INT 2026-09-09
KC3ZRU 2026-09-09
N3BYL 2026-09-09
N3JTJ 2026-09-12
KB3ZFH 2026-09-13

Starting with W3

All →

W3EFZ FL · 2026-09-09
W3IFX NY · 2026-09-10
W3AHR PA · 2026-09-20
W3YMB PA · 2026-09-21
W3TAL MD · 2026-09-28

Full history → Vanity availability → Callsign genealogy →