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

K4DUB

Active

Campbell, Wallis T

Location: Collinsville, TX
Class: General
Granted: 2017-11-15
Expires: 2027-12-07
Previous call: KJ4AHE
FRN: 0017087503

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Vanity availability

Held

Currently held

K4DUB is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

KJ4AHEcancelled· G
Campbell, Wallis TTNgranted 2007-11-01cancelled 2007-12-07

License history

0 events

No recorded events.

More vanity slots coming available

From Texas

All →

KI5OSV 2026-09-09
KJ5GTF 2026-09-09
K2UMA 2026-09-10
K9CWO 2026-09-10
KB5SLO 2026-09-10

Starting with K4

All →

K4HCL FL · 2026-09-09
K4CYG FL · 2026-09-10
K4LWW NC · 2026-09-10
K4ONS NC · 2026-09-10
K4YDD FL · 2026-09-10

Full history → Vanity availability → Callsign genealogy →