Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KS4AD

Expired

Henriksen, Howard H

Location: Huntsville, AL
Class: Advanced
Granted: 2014-06-23
Expires: 2024-06-23
Previous call: KE4IIM
FRN: 0002113470

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Vanity availability

648d

Available on 2028-06-22

KS4AD expired on 2024-06-23. Hold ends in 648 days.

Last held by Henriksen, Howard H (AL).

Confidence: High

Expired licenses get a 2-year FCC renewal grace period followed by the 2-year hold. The date shown accounts for both, so it's the firm release date per §97.19.

Callsign genealogy

Full chain →

Previously held by current licensee

KE4IIM
no FCC ULS record on file

License history

0 events

No recorded events.

More vanity slots coming available

From Alabama

All →

AB4LC 2026-09-14
KQ4UXO 2026-09-14
KC0OBW 2026-09-16
KK4LPM 2026-09-16
W4CKI 2026-09-17

Starting with KS4

All →

KS4FNA OH · 2026-11-23
KS4DS FL · 2027-01-02
KS4AS GA · 2027-01-04
KS4QU FL · 2027-01-18
KS4DO VA · 2027-03-04

Full history → Vanity availability → Callsign genealogy →