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

AC0AI

Cancelled

Klimczak, Joseph C

Location: St Louis, MO
Class: Amateur Extra
Granted: 2004-02-18
Expires: 2014-02-18
Previous call: KC0RPX
FRN: 0010062024

Get notified about status changes and vanity availability for this callsign.

Vanity availability

Available

Available now

AC0AI cleared its 2-year hold on 2006-03-20. Eligible for vanity application.

Last held by Klimczak, Joseph C (MO).

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

KC0RPXcancelled· E
Klimczak, Joseph CMOgranted 2004-02-18cancelled 2004-03-01

Prior holders later became

K4LSUactive· E
Klimczak, Joseph CMOgranted 2023-12-28

License history

0 events

No recorded events.

More vanity slots coming available

From Missouri

All →

KD0TBI 2026-09-11
KD0TBJ 2026-09-11
KD0TBK 2026-09-11
KD0TBL 2026-09-11
KD0TBM 2026-09-11

Starting with AC0

All →

AC0GJ CO · 2026-10-26
AC0DE WA · 2027-01-17
AC0JC MN · 2027-03-14
AC0HT CO · 2027-12-09
AC0JM CO · 2027-12-12

Full history → Vanity availability → Callsign genealogy →