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

KS4LO

Expired

ZUMPF, THOMAS S

Location: CUMMING, GA
Class: Advanced
Granted: 2004-09-17
Expires: 2014-12-16
Previous call: KE4TTR
FRN: 0006080311

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Vanity availability

Available

Available now

KS4LO cleared its 2-year hold on 2018-12-15. Eligible for vanity application.

Last held by ZUMPF, THOMAS S (GA).

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

KE4TTR
no FCC ULS record on file

License history

0 events

No recorded events.

More vanity slots coming available

From Georgia

All →

KK4LOU 2026-09-13
KQ4SOZ 2026-09-13
KD4SVG 2026-09-14
KD4SXJ 2026-09-14
KQ4ULV 2026-09-14

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 →