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

KO4JB

Cancelled

Brantley, Jeremiah R

Location: Agat, GU
Class: Amateur Extra
Granted: 2021-07-09
Expires: 2031-07-09
Previous call: KO4NJO
FRN: 0030634539

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Vanity availability

Available

Available now

KO4JB cleared its 2-year hold on 2025-07-10. Eligible for vanity application.

Last held by Brantley, Jeremiah R (GU).

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

KO4NJOcancelled· E
Brantley, Jeremiah RKYgranted 2021-03-01cancelled 2021-07-09

Prior holders later became

AH2JBactive· E
Brantley, Jeremiah RGUgranted 2023-07-11

License history

0 events

No recorded events.

More vanity slots coming available

From Guam

All →

KH2WU 2026-10-09
NH2KI 2026-10-10
NH2KJ 2026-10-10
NH2KK 2026-10-10
NH2KL 2026-10-10

Starting with KO4

All →

KO4UTL FL · 2026-09-13
KO4PTL KY · 2026-09-17
KO4OSB VA · 2026-09-21
KO4TMC FL · 2026-09-21
KO4YVJ FL · 2026-09-24

Full history → Vanity availability → Callsign genealogy →