uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-09

KB4MK

Expired

KLINGER, MARTIN F

Location
MERRITT ISLAND, FL
Class
Advanced
Granted
2013-09-17
Expires
2023-09-17
Previous call
WB4SXD
FRN
0015108194
Sign in to watch

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

Vanity availability

372d

Available on 2027-09-16

KB4MK expired on 2023-09-17. Hold ends in 372 days.

Last held by KLINGER, MARTIN F (FL).

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

  1. WB4SXDcancelled· A
    KLINGER, MARTIN FFLgranted 2006-05-30cancelled 2013-09-17

Prior holders later became

  1. N4MAKcancelled· E
    Kelly, Michael ANCgranted 2010-04-27cancelled 2012-01-10

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

Starting with KB4

All →