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

KD4RG

Cancelled

Groess, Robert

Location: Bloomington, IL
Class: Amateur Extra
Granted: 2020-11-10
Expires: 2030-11-10
Previous call: KY4BL
FRN: 0030009245

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Vanity availability

171d

Available on 2027-02-28

KD4RG cancelled on 2025-02-28. Hold ends in 171 days.

Last held by Groess, Robert (IL).

Confidence: High

Cancelled licenses begin the 2-year hold immediately on the cancellation date, so this is the firm release date per §97.19.

Callsign genealogy

Previously held by current licensee

KY4BLcancelled· E
Groess, RobertFLgranted 2020-10-08cancelled 2020-11-10

Prior holders later became

W9CEMactive· E
Groess, RobertILgranted 2025-02-28

License history

0 events

No recorded events.

More vanity slots coming available

From Illinois

K9CYV 2026-09-10
KC9WOC 2026-09-10
KD9YXS 2026-09-10
KE9BGG 2026-09-10
KC9CJI 2026-09-11

Starting with KD4

KD4STD KY · 2026-09-10
KD4SPY FL · 2026-09-11
KD4SUS VA · 2026-09-14
KD4SUW MI · 2026-09-14
KD4SVG GA · 2026-09-14

Full history → Vanity availability → Callsign genealogy →