Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE5D72

ICAO 24-bit transponder address

Currently assigned to 16-20873 · SIKORSKY UH-60 Black Hawk

Hex
AE5D72
Octal
53456562
Decimal
11,427,186
Tail
16-20873
Type
H60
No current signal · last broadcast 2d ago
Flights observed
4
Distinct callsigns
2
Country
-
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S AE5D72.

Callsign history 2 distinct

Callsign Airline Flights Last seen
R20873 - 2 2026-05-20
EVAC873 - 2 2026-05-31

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-05-31 EVAC873 - May 31, 22:10 UTCMay 31, 22:20 UTC10m
2026-05-31 EVAC873 - May 31, 20:50 UTCMay 31, 21:10 UTC20m
2026-05-20 R20873 - May 20, 00:55 UTCMay 20, 01:20 UTC25m
2026-05-04 R20873 - May 4, 01:30 UTCMay 4, 01:50 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 16-20873 page for operator, model, and routing details .

Mode-S AE5D72 frequently asked

What is Mode-S code AE5D72?
AE5D72 is an ICAO 24-bit transponder address. Assigned to 16-20873.
Is AE5D72 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE5D72, octal 53456562, decimal 11,427,186.
What flights does AE5D72 operate?
Mode-S AE5D72 has broadcast 2 distinct callsigns, including R20873, EVAC873.