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

AI4JS

Cancelled

Madderra, Bob L

Location: Atlanta, GA
Class: Amateur Extra
Granted: 2004-12-10
Expires: 2014-12-10
Previous call: KI4HZM
FRN: 0012294336

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Vanity availability

Available

Available now

AI4JS cleared its 2-year hold on 2007-04-22. Eligible for vanity application.

Last held by Madderra, Bob L (GA).

Confidence: High

Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.

Callsign genealogy

Full chain →

Previously held by current licensee

KI4HZMcancelled· E
Madderra, Bob LGAgranted 2004-12-10cancelled 2005-03-23

Prior holders later became

KF4SSactive· E
Madderra, Robert LGAgranted 2025-04-11

License history

0 events

No recorded events.

More vanity slots coming available

From Georgia

All →

KG6NEC 2026-09-09
KG4VAA 2026-09-10
KK4LOC 2026-09-11
KK4LOG 2026-09-11
KK4LOH 2026-09-11

Starting with AI4

All →

AI4LB FL · 2026-09-18
AI4BO FL · 2026-11-20
AI4QU TN · 2026-11-29
AI4FC MA · 2026-12-16
AI4ES KY · 2026-12-31

Full history → Vanity availability → Callsign genealogy →