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

W4JDU

Active

ULLREY, JOHN D

Location: SUMTER, SC
Class: Technician
Granted: 2018-07-10
Expires: 2028-07-10
Previous call: KN4NFS
FRN: 0027594829

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Vanity availability

Held

Currently held

W4JDU 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

KN4NFScancelled· T
ULLREY, JOHN DSCgranted 2018-06-18cancelled 2018-07-10

License history

0 events

No recorded events.

More vanity slots coming available

From South Carolina

All →

KQ4URH 2026-09-10
KG4VBH 2026-09-12
KK4LOZ 2026-09-13
KK4LPA 2026-09-13
KK4LPE 2026-09-13

Starting with W4

All →

W4IDI AL · 2026-09-10
W4YAU TN · 2026-09-10
W4CVH VA · 2026-09-12
W4QDZ NC · 2026-09-13
W4CKI AL · 2026-09-17

Full history → Vanity availability → Callsign genealogy →