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

KF4GRO

Cancelled

WATSON JR, CHARLES B

Location: OKLAHOMA CITY, OK
Class: General
Granted: 2016-01-16
Expires: 2026-03-07
FRN: 0014752745

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Vanity availability

Available

Available now

KF4GRO cleared its 2-year hold on 2025-02-09. Eligible for vanity application.

Last held by WATSON JR, CHARLES B (OK).

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

W4CBWactive· G
WATSON JR, CHARLES BOKgranted 2023-02-10

License history

0 events

No recorded events.

More vanity slots coming available

From Oklahoma

All →

KD5TUY 2026-09-10
KJ5HRK 2026-09-10
KF5RYN 2026-09-11
KF5RYO 2026-09-11
KJ5HQD 2026-09-13

Starting with KF4

All →

KF4WUR VA · 2026-10-01
KF4BCO FL · 2026-10-09
KF4WLA FL · 2026-10-11
KF4QOP KY · 2026-11-16
KF4TYA FL · 2026-11-22

Full history → Vanity availability → Callsign genealogy →