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

KC1OOS

Cancelled

Shell, Martin

Location: Somerville, MA
Class: Amateur Extra
Granted: 2021-04-16
Expires: 2031-04-16
Previous call: WZ1MCS
FRN: 0013984950

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Vanity availability

Available

Available now

KC1OOS cleared its 2-year hold on 2023-05-27. Eligible for vanity application.

Last held by Shell, Martin (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

WZ1MCScancelled· G
Shell, MartinMAgranted 2021-03-23cancelled 2021-04-16

Prior holders later became

AC1LLactive· E
Shell, MartinMEgranted 2021-04-16
WZ1MCScancelled· G
Shell, MartinMAgranted 2021-03-23cancelled 2021-04-16

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 KC1

All →

KC1SDV MA · 2026-09-10
KC1VGT CT · 2026-09-10
KC1UNR NH · 2026-09-13
KC1VEC ME · 2026-09-17
KC1VEL CT · 2026-09-17

Full history → Vanity availability → Callsign genealogy →