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

W1MSW

Cancelled

Wilhelm, Matthew S

Location: Williamsburg, MA
Class: Amateur Extra
Granted: 2010-02-19
Expires: 2020-02-19
Previous call: KB1TCL
FRN: 0019208073

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Vanity availability

Available

Available now

W1MSW cleared its 2-year hold on 2019-09-01. Eligible for vanity application.

Last held by Wilhelm, Matthew S (MA).

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

KB1TCLcancelled· G
Wilhelm, Matthew SMAgranted 2009-10-22cancelled 2010-02-19

Prior holders later became

W1PYactive· E
Wilhelm, Matthew SMAgranted 2017-09-01

License history

0 events

No recorded events.

More vanity slots coming available

From Massachusetts

All →

K1AFR 2026-09-10
KC1SDV 2026-09-10
W1RLJ 2026-09-10
KB1ITH 2026-09-12
KB1YQO 2026-09-13

Starting with W1

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W1RLJ MA · 2026-09-10
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W1GOU NH · 2026-09-21
W1PVC MA · 2026-10-04
W1CEF RI · 2026-10-12

Full history → Vanity availability → Callsign genealogy →