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

KB1HDO

Cancelled

Griswold, John A

Location: Ayer, MA
Class: Amateur Extra
Granted: 2001-08-23
Expires: 2011-08-23
FRN: 0005201736

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Vanity availability

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Available now

KB1HDO cleared its 2-year hold on 2008-01-10. Eligible for vanity application.

Last held by Griswold, John A (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 →

Prior holders later became

KK1Xactive· E
Griswold, John AMAgranted 2025-12-06

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 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 →