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

KB1UMU

Cancelled

Caswell, Benson T

Location: Cumberland Foreside, ME
Class: Technician
Granted: 2020-03-28
Expires: 2030-06-25
FRN: 0019974054

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Vanity availability

Available

Available now

KB1UMU cleared its 2-year hold on 2022-10-31. Eligible for vanity application.

Last held by Caswell, Benson T (ME).

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 →

Prior holders later became

K1BECactive· T
Caswell, Benson TMEgranted 2020-10-31

License history

0 events

No recorded events.

More vanity slots coming available

From Maine

All →

KB1ICB 2026-09-10
KB1YQF 2026-09-13
KB1YQH 2026-09-13
KC1VEC 2026-09-17
KD4TCW 2026-09-21

Starting with KB1

All →

KB1ICB ME · 2026-09-10
KB1YQB NH · 2026-09-10
KB1YQC NH · 2026-09-10
KB1YQD NH · 2026-09-10
KB1HYE FL · 2026-09-12

Full history → Vanity availability → Callsign genealogy →