sensors Mode-S transponder

AE139C

ICAO 24-bit transponder address

Currently assigned to 04-3710 · BEECHCRAFT T-6 Texan 2

Hex
AE139C
Octal
53411634
Decimal
11,408,284
Tail
04-3710
Type
TEX2
No current signal · last broadcast 1d ago
Flights observed
5
Distinct callsigns
5
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AE139C.

Callsign history 5 distinct

Callsign Airline Flights Last seen
LOOT68 - 1 2026-04-12
DRAGN29 - 1 2026-04-13
BALL66 - 1 2026-04-13
BALL57 - 1 2026-04-13
BALL31 - 1 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 BALL66 - Apr 13, 21:30 UTCApr 13, 22:50 UTC1h 20m
2026-04-13 BALL57 - Apr 13, 18:15 UTCApr 13, 19:20 UTC1h 5m
2026-04-13 BALL31 - Apr 13, 15:25 UTCApr 13, 15:50 UTC25m
2026-04-13 DRAGN29 - Apr 13, 12:35 UTCApr 13, 13:15 UTC40m
2026-04-12 LOOT68 - Apr 12, 18:45 UTCApr 12, 18:55 UTC10m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the 04-3710 page for operator, model, and routing details .

Mode-S AE139C frequently asked

What is Mode-S code AE139C?
AE139C is an ICAO 24-bit transponder address. Assigned to 04-3710.
Is AE139C broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE139C, octal 53411634, decimal 11,408,284.
What flights does AE139C operate?
Mode-S AE139C has broadcast 5 distinct callsigns, including LOOT68, DRAGN29, BALL66, BALL57, BALL31.