Apparatus

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sensors Mode-S transponder

AE1E7D

ICAO 24-bit transponder address

Currently assigned to 166031 · Raytheon T-6B Texan II

Hex
AE1E7D
Octal
53417175
Decimal
11,411,069
Tail
166031
Type
TEX2
No current signal · last broadcast 2h ago
Flights observed
25
Distinct callsigns
3
Country
-
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AE1E7D.

Callsign history 3 distinct

Callsign Airline Flights Last seen
TSTR21 - 17 2026-07-14
TESTER21 - 7 2026-05-15
BB064 - 1 2026-05-29

Recent flights last 25

DateFlightRouteTakeoffLandingDuration
2026-07-14 TSTR21 - Jul 14, 13:15 UTCJul 14, 14:25 UTC1h 10m
2026-07-13 TSTR21 - Jul 13, 18:55 UTCJul 13, 20:20 UTC1h 25m
2026-07-13 TSTR21 - Jul 13, 13:05 UTCJul 13, 14:30 UTC1h 25m
2026-07-07 TSTR21 - Jul 7, 19:05 UTCJul 7, 19:50 UTC45m
2026-06-24 TSTR21 - Jun 24, 19:04 UTCJun 24, 20:44 UTC1h 40m
2026-06-22 TSTR21 - Jun 22, 17:20 UTCJun 22, 18:00 UTC40m
2026-06-18 TSTR21 - Jun 18, 12:35 UTCJun 18, 13:50 UTC1h 15m
2026-06-17 TSTR21 - Jun 17, 19:25 UTCJun 17, 21:10 UTC1h 45m
2026-06-17 TSTR21 - Jun 17, 14:35 UTCJun 17, 15:30 UTC55m
2026-06-16 TSTR21 - Jun 16, 19:40 UTCJun 16, 21:15 UTC1h 36m
2026-06-15 TSTR21 NHK → NHK Jun 15, 19:45 UTCJun 15, 21:14 UTC1h 30m
2026-06-15 TSTR21 NHK → NHK Jun 15, 14:00 UTCJun 15, 15:04 UTC1h 5m
2026-06-10 TSTR21 - Jun 10, 11:25 UTCJun 10, 12:45 UTC1h 20m
2026-06-07 TSTR21 - Jun 7, 20:25 UTCJun 7, 21:50 UTC1h 25m
2026-06-07 TSTR21 - Jun 7, 16:00 UTCJun 7, 17:30 UTC1h 30m
2026-06-05 TSTR21 - Jun 5, 21:00 UTCJun 5, 22:05 UTC1h 5m
2026-06-02 TSTR21 NHK → NHK Jun 2, 18:55 UTCJun 2, 19:55 UTC1h 0m
2026-05-29 BB064 - May 29, 12:55 UTCMay 29, 14:00 UTC1h 5m
2026-05-15 TESTER21 NHK → NHK May 15, 14:05 UTCMay 15, 15:20 UTC1h 14m
2026-05-14 TESTER21 - May 14, 19:05 UTCMay 14, 20:10 UTC1h 5m
2026-05-13 TESTER21 - May 13, 19:20 UTCMay 13, 20:25 UTC1h 5m
2026-05-08 TESTER21 - May 8, 18:00 UTCMay 8, 19:20 UTC1h 20m
2026-05-04 TESTER21 - May 4, 18:15 UTCMay 4, 19:05 UTC51m
2026-04-30 TESTER21 - Apr 30, 20:35 UTCApr 30, 22:00 UTC1h 25m
2026-04-30 TESTER21 - Apr 30, 14:45 UTCApr 30, 15:30 UTC45m

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 166031 page for operator, model, and routing details .

Mode-S AE1E7D frequently asked

What is Mode-S code AE1E7D?
AE1E7D is an ICAO 24-bit transponder address. Assigned to 166031.
Is AE1E7D 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 AE1E7D, octal 53417175, decimal 11,411,069.
What flights does AE1E7D operate?
Mode-S AE1E7D has broadcast 3 distinct callsigns, including TSTR21, TESTER21, BB064.