sensors Mode-S transponder

AE5997

ICAO 24-bit transponder address

Currently assigned to 13-08132 · BOEING-VERTOL CH-47 Chinook

Hex
AE5997
Octal
53454627
Decimal
11,426,199
Tail
13-08132
Type
H47
Transponder active on ground
Flights observed
14
Distinct callsigns
4
Country
-
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S AE5997.

Callsign history 4 distinct

Callsign Airline Flights Last seen
GRIT41 - 9 2026-05-29
GRIT22 - 3 2026-05-06
GRIT98 - 1 2026-05-05
GRIT19 - 1 2026-05-06

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-05-29 GRIT41 TMP → TLL May 29, 10:15 UTCMay 29, 11:20 UTC1h 5m
2026-05-29 GRIT41 - May 29, 08:40 UTCMay 29, 09:00 UTC20m
2026-05-29 GRIT41 - May 29, 07:15 UTCMay 29, 07:30 UTC15m
2026-05-09 GRIT41 - May 9, 17:30 UTCMay 9, 17:49 UTC20m
2026-05-09 GRIT41 - May 9, 11:05 UTCMay 9, 11:15 UTC10m
2026-05-09 GRIT41 - May 9, 10:15 UTCMay 9, 10:35 UTC20m
2026-05-08 GRIT41 - May 8, 17:20 UTCMay 8, 18:55 UTC1h 35m
2026-05-08 GRIT41 - May 8, 13:50 UTCMay 8, 15:35 UTC1h 45m
2026-05-08 GRIT41 - May 8, 10:04 UTCMay 8, 12:30 UTC2h 25m
2026-05-06 GRIT19 - May 6, 18:55 UTCMay 6, 19:30 UTC35m
2026-05-06 GRIT22 - May 6, 12:01 UTCMay 6, 12:50 UTC49m
2026-05-05 GRIT98 - May 5, 12:20 UTCMay 5, 13:25 UTC1h 5m
2026-04-15 GRIT22 - Apr 15, 19:30 UTCApr 15, 20:50 UTC1h 20m
2026-04-15 GRIT22 - Apr 15, 17:10 UTCApr 15, 18:10 UTC1h 0m

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 13-08132 page for operator, model, and routing details .

Mode-S AE5997 frequently asked

What is Mode-S code AE5997?
AE5997 is an ICAO 24-bit transponder address. Assigned to 13-08132.
Is AE5997 broadcasting right now?
Mode-S AE5997 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE5997, octal 53454627, decimal 11,426,199.
What flights does AE5997 operate?
Mode-S AE5997 has broadcast 4 distinct callsigns, including GRIT41, GRIT22, GRIT98, GRIT19.