sensors Mode-S transponder

AE4E9C

ICAO 24-bit transponder address

Currently assigned to 166178 · Raytheon T-6B Texan II

Hex
AE4E9C
Octal
53447234
Decimal
11,423,388
Tail
166178
Type
TEX2
No current signal · last broadcast Jul 26, 20:35 UTC
Flights observed
83
Distinct callsigns
11
Country
-
Last broadcast
Jul 26, 20:35 UTC

Last known position

Most recent position reported by Mode-S AE4E9C.

Callsign history 11 distinct

Callsign Airline Flights Last seen
BB178 - 31 2026-07-26
SH178 - 21 2026-07-23
RN178 - 16 2026-06-29
TEXN178 - 4 2026-07-24
SH215 - 2 2026-07-15
SH023 - 2 2026-06-26
BB049 - 2 2026-06-04
BB021 - 2 2026-06-28
SH247 - 1 2026-07-23
SH178Z - 1 2026-04-27
BB163 - 1 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BB178 - Jul 26, 19:55 UTCJul 26, 20:35 UTC40m
2026-07-26 BB178 - Jul 26, 17:10 UTCJul 26, 17:30 UTC20m
2026-07-26 BB178 - Jul 26, 14:30 UTCJul 26, 14:40 UTC10m
2026-07-26 BB178 - Jul 26, 13:25 UTCJul 26, 13:55 UTC30m
2026-07-24 TEXN178 - Jul 24, 19:15 UTCJul 24, 19:45 UTC30m
2026-07-24 TEXN178 - Jul 24, 16:30 UTCJul 24, 17:40 UTC1h 10m
2026-07-23 SH178 - Jul 23, 21:30 UTCJul 23, 23:00 UTC1h 30m
2026-07-23 SH178 - Jul 23, 17:45 UTCJul 23, 19:05 UTC1h 20m
2026-07-23 SH247 - Jul 23, 14:10 UTCJul 23, 14:35 UTC25m
2026-07-21 SH178 - Jul 21, 15:00 UTCJul 21, 16:25 UTC1h 25m
2026-07-20 SH178 - Jul 20, 17:30 UTCJul 20, 17:55 UTC25m
2026-07-20 SH178 - Jul 20, 14:15 UTCJul 20, 14:45 UTC30m
2026-07-16 SH178 - Jul 16, 16:40 UTCJul 16, 17:30 UTC50m
2026-07-16 SH178 - Jul 16, 14:25 UTCJul 16, 15:14 UTC50m
2026-07-15 SH215 - Jul 15, 20:35 UTCJul 15, 21:10 UTC35m
2026-07-15 SH215 - Jul 15, 17:25 UTCJul 15, 18:25 UTC1h 0m
2026-07-13 BB178 - Jul 13, 12:25 UTCJul 13, 12:55 UTC30m
2026-07-02 BB178 - Jul 2, 18:25 UTCJul 2, 19:30 UTC1h 5m
2026-06-30 BB178 - Jun 30, 21:20 UTCJun 30, 22:25 UTC1h 5m
2026-06-30 BB178 - Jun 30, 13:35 UTCJun 30, 14:00 UTC25m
2026-06-29 RN178 - Jun 29, 12:39 UTCJun 29, 13:19 UTC40m
2026-06-28 BB021 - Jun 28, 17:50 UTCJun 28, 18:19 UTC30m
2026-06-28 BB021 - Jun 28, 14:54 UTCJun 28, 15:24 UTC30m
2026-06-27 BB163 - Jun 27, 17:14 UTCJun 27, 17:55 UTC40m
2026-06-26 SH023 - Jun 26, 17:04 UTCJun 26, 17:50 UTC45m
2026-06-26 SH023 - Jun 26, 13:59 UTCJun 26, 14:55 UTC55m
2026-06-25 SH178 - Jun 25, 23:55 UTCJun 26, 00:55 UTC1h 0m
2026-06-25 SH178 - Jun 25, 20:45 UTCJun 25, 20:59 UTC15m
2026-06-24 SH178 - Jun 24, 22:00 UTCJun 24, 22:25 UTC25m
2026-06-24 SH178 - Jun 24, 18:34 UTCJun 24, 19:20 UTC45m
2026-06-24 SH178 - Jun 24, 15:00 UTCJun 24, 15:14 UTC15m
2026-06-23 RN178 - Jun 23, 17:20 UTCJun 23, 18:39 UTC1h 20m
2026-06-23 RN178 - Jun 23, 13:39 UTCJun 23, 14:55 UTC1h 15m
2026-06-17 RN178 - Jun 17, 17:45 UTCJun 17, 18:35 UTC50m
2026-06-12 TEXN178 - Jun 12, 17:40 UTCJun 12, 19:05 UTC1h 25m
2026-06-11 RN178 - Jun 11, 16:50 UTCJun 11, 17:45 UTC55m
2026-06-11 RN178 - Jun 11, 13:30 UTCJun 11, 14:15 UTC45m
2026-06-05 SH178 - Jun 5, 20:25 UTCJun 5, 21:35 UTC1h 10m
2026-06-05 SH178 - Jun 5, 17:35 UTCJun 5, 18:40 UTC1h 5m
2026-06-05 BB178 - Jun 5, 13:20 UTCJun 5, 14:40 UTC1h 20m
2026-06-05 BB178 - Jun 5, 00:55 UTCJun 5, 02:00 UTC1h 5m
2026-06-04 BB178 - Jun 4, 22:55 UTCJun 4, 23:35 UTC40m
2026-06-04 BB049 - Jun 4, 17:50 UTCJun 4, 18:30 UTC40m
2026-06-04 BB049 - Jun 4, 13:55 UTCJun 4, 14:35 UTC40m
2026-06-03 BB178 - Jun 3, 19:40 UTCJun 3, 20:50 UTC1h 10m
2026-06-03 BB178 - Jun 3, 17:45 UTCJun 3, 18:05 UTC20m
2026-06-03 BB178 - Jun 3, 16:40 UTCJun 3, 17:05 UTC25m
2026-06-03 BB178 - Jun 3, 13:20 UTCJun 3, 13:50 UTC30m
2026-06-02 BB178 - Jun 2, 23:45 UTCJun 3, 00:30 UTC45m
2026-06-02 BB178 - Jun 2, 21:25 UTCJun 2, 21:45 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 166178 page for operator, model, and routing details .

Mode-S AE4E9C frequently asked

What is Mode-S code AE4E9C?
AE4E9C is an ICAO 24-bit transponder address. Assigned to 166178.
Is AE4E9C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE4E9C, octal 53447234, decimal 11,423,388.
What flights does AE4E9C operate?
Mode-S AE4E9C has broadcast 11 distinct callsigns, including BB178, SH178, RN178, TEXN178, SH215.