Apparatus

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sensors Mode-S transponder

AE1EC4

ICAO 24-bit transponder address

Currently assigned to 166063 · Raytheon T-6B Texan II

Hex
AE1EC4
Octal
53417304
Decimal
11,411,140
Tail
166063
Type
TEX2
No current signal · last broadcast 1d ago
Flights observed
11
Distinct callsigns
2
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AE1EC4.

Callsign history 2 distinct

Callsign Airline Flights Last seen
BOMR723 - 8 2026-04-17
RNGR723 - 3 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-17 BOMR723 - Apr 17, 13:55 UTCApr 17, 15:15 UTC1h 19m
2026-04-16 BOMR723 - Apr 16, 21:34 UTCApr 16, 22:54 UTC1h 20m
2026-04-16 BOMR723 - Apr 16, 19:15 UTCApr 16, 19:35 UTC20m
2026-04-16 BOMR723 - Apr 16, 18:10 UTCApr 16, 18:50 UTC40m
2026-04-15 BOMR723 - Apr 15, 01:00 UTCApr 15, 02:25 UTC1h 25m
2026-04-14 BOMR723 - Apr 14, 22:40 UTCApr 14, 22:50 UTC10m
2026-04-14 BOMR723 - Apr 14, 18:55 UTCApr 14, 19:35 UTC40m
2026-04-14 BOMR723 - Apr 14, 14:50 UTCApr 14, 15:35 UTC45m
2026-04-13 RNGR723 - Apr 13, 16:15 UTCApr 13, 16:55 UTC40m
2026-04-13 RNGR723 - Apr 13, 16:10 UTCApr 13, 16:55 UTC45m
2026-04-13 RNGR723 - Apr 13, 15:10 UTCApr 13, 15:25 UTC15m

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 166063 page for operator, model, and routing details .

Mode-S AE1EC4 frequently asked

What is Mode-S code AE1EC4?
AE1EC4 is an ICAO 24-bit transponder address. Assigned to 166063.
Is AE1EC4 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE1EC4, octal 53417304, decimal 11,411,140.
What flights does AE1EC4 operate?
Mode-S AE1EC4 has broadcast 2 distinct callsigns, including BOMR723, RNGR723.