sensors Mode-S transponder

AE50D8

ICAO 24-bit transponder address

Currently assigned to 10-20280 · SIKORSKY UH-60 Black Hawk

Hex
AE50D8
Octal
53450330
Decimal
11,423,960
Tail
10-20280
Type
H60
No current signal · last broadcast 1d ago
Flights observed
9
Distinct callsigns
1
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AE50D8.

Callsign history 1 distinct

Callsign Airline Flights Last seen
EVAL62 - 9 2026-05-19

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-05-19 EVAL62 - May 19, 18:40 UTCMay 19, 20:00 UTC1h 20m
2026-05-19 EVAL62 - May 19, 14:40 UTCMay 19, 15:50 UTC1h 10m
2026-05-18 EVAL62 HUA → HUA May 18, 14:35 UTCMay 18, 16:40 UTC2h 5m
2026-05-15 EVAL62 HUA → HUA May 15, 15:25 UTCMay 15, 17:15 UTC1h 50m
2026-05-11 EVAL62 HUA → HUA May 11, 19:30 UTCMay 11, 20:55 UTC1h 25m
2026-05-07 EVAL62 HUA → HUA May 7, 16:15 UTCMay 7, 17:35 UTC1h 20m
2026-05-05 EVAL62 HUA → HUA May 5, 14:30 UTCMay 5, 16:06 UTC1h 35m
2026-05-01 EVAL62 - May 1, 16:05 UTCMay 1, 17:05 UTC1h 0m
2026-05-01 EVAL62 HUA → HUA May 1, 15:10 UTCMay 1, 15:55 UTC45m

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 10-20280 page for operator, model, and routing details .

Mode-S AE50D8 frequently asked

What is Mode-S code AE50D8?
AE50D8 is an ICAO 24-bit transponder address. Assigned to 10-20280.
Is AE50D8 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 AE50D8, octal 53450330, decimal 11,423,960.
What flights does AE50D8 operate?
Mode-S AE50D8 has broadcast 1 distinct callsign, including EVAL62.