sensors Mode-S transponder

AE057D

ICAO 24-bit transponder address

Currently assigned to 87-0032 · Lockheed C-5M Super Galaxy

Hex
AE057D
Octal
53402575
Decimal
11,404,669
Tail
87-0032
Type
C5M
No current signal · last broadcast 12d ago
Flights observed
4
Distinct callsigns
3
Country
-
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S AE057D.

Callsign history 3 distinct

Callsign Airline Flights Last seen
RCH2127 - 2 2026-05-03
RCH2015 - 1 2026-05-09
HEFTY85 - 1 2026-05-22

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-05-22 HEFTY85 - May 22, 02:05 UTCMay 22, 04:40 UTC2h 35m
2026-05-09 RCH2015 SUU → HNL May 9, 19:30 UTCMay 10, 01:00 UTC5h 30m
2026-05-03 RCH2127 - May 3, 01:00 UTCMay 3, 04:45 UTC3h 44m
2026-05-01 RCH2127 - May 1, 21:00 UTCMay 1, 21:20 UTC20m

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 87-0032 page for operator, model, and routing details .

Mode-S AE057D frequently asked

What is Mode-S code AE057D?
AE057D is an ICAO 24-bit transponder address. Assigned to 87-0032.
Is AE057D broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE057D, octal 53402575, decimal 11,404,669.
What flights does AE057D operate?
Mode-S AE057D has broadcast 3 distinct callsigns, including RCH2127, RCH2015, HEFTY85.