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

W3SR

Cancelled

THYBERG, ROBERT C

Location: ANNAPOLIS, MD
Class: Amateur Extra
Granted: 2008-02-29
Expires: 2018-05-29
FRN: 0004129151

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Vanity availability

Unknown

Status unknown

No vanity-slot record on file for W3SR. Either it has never been issued, is currently held by an active license, or hasn't been re-computed since its last freeing event.

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

W4QPactive· E
Crepeau, Andrew DALgranted 2026-02-12
KW4RWcancelled· E
Crepeau, Andrew DALgranted 2011-12-23cancelled 2016-04-30
KG4RWDcancelled· E
Crepeau, Andrew DALgranted 2011-12-23cancelled 2016-03-14

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 W3

All →

W3IFX NY · 2026-09-10
W3AHR PA · 2026-09-20
W3YMB PA · 2026-09-21
W3TAL MD · 2026-09-28
W3EOP PA · 2026-10-07

Full history → Vanity availability → Callsign genealogy →