sensors Mode-S transponder

AE5A0F

ICAO 24-bit transponder address

Currently assigned to 16-08216 · BOEING-VERTOL CH-47 Chinook

Hex
AE5A0F
Octal
53455017
Decimal
11,426,319
Tail
16-08216
Type
H47
No current signal · last broadcast 12h ago
Flights observed
10
Distinct callsigns
2
Country
-
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S AE5A0F.

Callsign history 2 distinct

Callsign Airline Flights Last seen
KEEP22 - 6 2026-04-14
KEEP38 - 4 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 KEEP22 - Apr 14, 10:55 UTCApr 14, 11:05 UTC10m
2026-04-14 KEEP22 - Apr 14, 09:25 UTCApr 14, 10:45 UTC1h 20m
2026-04-14 KEEP22 - Apr 14, 08:25 UTCApr 14, 08:35 UTC10m
2026-04-14 KEEP22 - Apr 14, 08:10 UTCApr 14, 08:20 UTC10m
2026-04-14 KEEP22 - Apr 14, 07:10 UTCApr 14, 08:05 UTC55m
2026-04-14 KEEP22 - Apr 14, 06:45 UTCApr 14, 07:10 UTC25m
2026-04-13 KEEP38 - Apr 13, 05:40 UTCApr 13, 06:35 UTC55m
2026-04-13 KEEP38 - Apr 13, 04:20 UTCApr 13, 05:25 UTC1h 5m
2026-04-13 KEEP38 - Apr 13, 04:05 UTCApr 13, 04:15 UTC10m
2026-04-13 KEEP38 - Apr 13, 03:20 UTCApr 13, 03:30 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 16-08216 page for operator, model, and routing details .

Mode-S AE5A0F frequently asked

What is Mode-S code AE5A0F?
AE5A0F is an ICAO 24-bit transponder address. Assigned to 16-08216.
Is AE5A0F broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE5A0F, octal 53455017, decimal 11,426,319.
What flights does AE5A0F operate?
Mode-S AE5A0F has broadcast 2 distinct callsigns, including KEEP22, KEEP38.