sensors Mode-S transponder

AE54C4

ICAO 24-bit transponder address

Currently assigned to 14-00067 · Raytheon T-6D Texan II

Hex
AE54C4
Octal
53452304
Decimal
11,424,964
Tail
14-00067
Type
TEX2
No current signal · last broadcast 2h ago
Flights observed
16
Distinct callsigns
7
Country
-
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AE54C4.

Callsign history 7 distinct

Callsign Airline Flights Last seen
EVAL53 - 6 2026-05-19
EVAL18 - 3 2026-05-14
EVAL62 - 2 2026-05-18
EVAL43 - 2 2026-05-20
EVAL59 - 1 2026-05-11
EVAL21 - 1 2026-05-20
EVAL00 - 1 2026-05-13

Recent flights last 16

DateFlightRouteTakeoffLandingDuration
2026-05-20 EVAL21 HUA → HUA May 20, 18:20 UTCMay 20, 19:40 UTC1h 20m
2026-05-20 EVAL43 - May 20, 14:25 UTCMay 20, 16:05 UTC1h 40m
2026-05-19 EVAL53 - May 19, 17:15 UTCMay 19, 17:30 UTC15m
2026-05-19 EVAL53 - May 19, 15:50 UTCMay 19, 16:40 UTC50m
2026-05-18 EVAL53 - May 18, 20:10 UTCMay 18, 20:25 UTC15m
2026-05-18 EVAL53 - May 18, 18:40 UTCMay 18, 19:35 UTC55m
2026-05-18 EVAL62 - May 18, 14:10 UTCMay 18, 15:40 UTC1h 30m
2026-05-15 EVAL62 HUA → HUA May 15, 19:10 UTCMay 15, 20:10 UTC1h 0m
2026-05-14 EVAL18 HUA → HUA May 14, 14:25 UTCMay 14, 16:10 UTC1h 45m
2026-05-13 EVAL18 HUA → HUA May 13, 18:35 UTCMay 13, 19:50 UTC1h 15m
2026-05-13 EVAL00 - May 13, 15:05 UTCMay 13, 17:25 UTC2h 20m
2026-05-12 EVAL43 HUA → HUA May 12, 19:20 UTCMay 12, 21:01 UTC1h 40m
2026-05-11 EVAL18 HUA → HUA May 11, 18:25 UTCMay 11, 20:00 UTC1h 35m
2026-05-11 EVAL59 - May 11, 15:10 UTCMay 11, 15:55 UTC45m
2026-05-08 EVAL53 HUA → HUA May 8, 18:45 UTCMay 8, 20:30 UTC1h 45m
2026-05-07 EVAL53 HUA → HUA May 7, 20:05 UTCMay 7, 21:30 UTC1h 25m

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 14-00067 page for operator, model, and routing details .

Mode-S AE54C4 frequently asked

What is Mode-S code AE54C4?
AE54C4 is an ICAO 24-bit transponder address. Assigned to 14-00067.
Is AE54C4 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE54C4, octal 53452304, decimal 11,424,964.
What flights does AE54C4 operate?
Mode-S AE54C4 has broadcast 7 distinct callsigns, including EVAL53, EVAL18, EVAL62, EVAL43, EVAL59.