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

WD4DVO

Cancelled

JOHNSTON III, WILLIAM D

Location: rocklin, CA
Class: Amateur Extra
Granted: 2017-10-23
Expires: 2028-01-15
Previous call: W6GAS
FRN: 0002615813

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Vanity availability

Available

Available now

WD4DVO cleared its 2-year hold on 2022-02-10. Eligible for vanity application.

Last held by JOHNSTON III, WILLIAM D (CA).

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

W6GASactive· E
Sprehn, GregoryCAgranted 2016-04-12
KM6AROcancelled· E
Sprehn, GregoryCAgranted 2016-02-24cancelled 2016-04-12

Prior holders later became

WD6DVOcancelled· E
JOHNSTON III, WILLIAM DCAgranted 2020-02-11cancelled 2021-01-19

License history

0 events

No recorded events.

More vanity slots coming available

From California

All →

AC2TX 2026-09-10
K6DJM 2026-09-10
KC6JGS 2026-09-10
KC6KGL 2026-09-10
KC6VEU 2026-09-10

Starting with WD4

All →

WD4FLY FL · 2026-09-21
WD4EUD KY · 2026-10-09
WD4KJC MS · 2026-10-12
WD4KLU FL · 2026-10-12
WD4BQW NC · 2026-10-15

Full history → Vanity availability → Callsign genealogy →