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

KM4SS

Active

Stradtman Jr, Earl W

Location: Birmingham, AL
Class: Amateur Extra
Granted: 2018-09-07
Expires: 2028-09-07
Previous call: KM4SSS
FRN: 0024565327

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

Vanity availability

Held

Currently held

KM4SS is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

KM4SSScancelled· E
Stradtman Jr, Earl WALgranted 2016-01-29cancelled 2018-09-07
KM4PCTcancelled· T
Stradtman Jr, Earl WALgranted 2015-11-23cancelled 2016-01-29

Prior holders later became

AB4QTexpired· E
BRUNN, ROBERT JNCgranted 1990-10-02cancelled 2002-10-03

License history

0 events

No recorded events.

More vanity slots coming available

From Alabama

All →

KQ4UUE 2026-09-09
KG4SUF 2026-09-10
KQ4TEB 2026-09-10
KQ4UQY 2026-09-10
KQ4UVF 2026-09-10

Starting with KM4

All →

KM4AHK PA · 2026-09-21
KM4JCT GA · 2026-09-28
KM4FBY SC · 2026-10-01
KM4IS NC · 2026-10-03
KM4NGF AL · 2026-10-07

Full history → Vanity availability → Callsign genealogy →