Apparatus

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sensors Mode-S transponder

AE1F34

ICAO 24-bit transponder address

Currently assigned to 07-72037 · Airbus Helicopters UH-72A Lakota

Hex
AE1F34
Octal
53417464
Decimal
11,411,252
Tail
07-72037
Type
EC45
No current signal · last broadcast Jul 23, 20:55 UTC
Flights observed
21
Distinct callsigns
2
Country
-
Last broadcast
Jul 23, 20:55 UTC

Last known position

Most recent position reported by Mode-S AE1F34.

Callsign history 2 distinct

Callsign Airline Flights Last seen
LEGEND1 - 17 2026-07-23
G72037 - 4 2026-07-19

Recent flights last 21

DateFlightRouteTakeoffLandingDuration
2026-07-23 LEGEND1 - Jul 23, 19:35 UTCJul 23, 20:55 UTC1h 20m
2026-07-23 LEGEND1 - Jul 23, 14:30 UTCJul 23, 16:00 UTC1h 30m
2026-07-19 G72037 - Jul 19, 22:35 UTCJul 19, 22:50 UTC15m
2026-07-19 G72037 - Jul 19, 19:50 UTCJul 19, 20:15 UTC25m
2026-07-19 G72037 - Jul 19, 17:45 UTCJul 19, 18:25 UTC40m
2026-07-19 G72037 - Jul 19, 14:40 UTCJul 19, 15:20 UTC40m
2026-07-16 LEGEND1 - Jul 16, 20:09 UTCJul 16, 21:15 UTC1h 5m
2026-07-16 LEGEND1 LNK → BKX Jul 16, 16:25 UTCJul 16, 18:29 UTC2h 5m
2026-07-15 LEGEND1 LNK → LNK Jul 15, 22:10 UTCJul 15, 22:15 UTC5m
2026-07-15 LEGEND1 LNK → LNK Jul 15, 18:45 UTCJul 15, 20:50 UTC2h 5m
2026-07-15 LEGEND1 LNK → LNK Jul 15, 17:50 UTCJul 15, 18:40 UTC50m
2026-07-15 LEGEND1 LNK → LNK Jul 15, 16:10 UTCJul 15, 16:50 UTC40m
2026-07-15 LEGEND1 LNK → LNK Jul 15, 15:35 UTCJul 15, 15:40 UTC5m
2026-07-14 LEGEND1 LNK → LNK Jul 14, 23:10 UTCJul 14, 23:55 UTC45m
2026-07-14 LEGEND1 LNK → LNK Jul 14, 21:05 UTCJul 14, 21:20 UTC15m
2026-07-14 LEGEND1 LNK → LNK Jul 14, 20:05 UTCJul 14, 20:15 UTC10m
2026-07-14 LEGEND1 LNK → LNK Jul 14, 18:45 UTCJul 14, 18:55 UTC10m
2026-07-14 LEGEND1 LNK → LNK Jul 14, 18:25 UTCJul 14, 18:40 UTC15m
2026-07-14 LEGEND1 LNK → LNK Jul 14, 18:00 UTCJul 14, 18:20 UTC20m
2026-07-14 LEGEND1 LNK → LNK Jul 14, 14:40 UTCJul 14, 14:45 UTC5m
2026-07-13 LEGEND1 LNK → LNK Jul 13, 21:20 UTCJul 13, 21:25 UTC5m

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 07-72037 page for operator, model, and routing details .

Mode-S AE1F34 frequently asked

What is Mode-S code AE1F34?
AE1F34 is an ICAO 24-bit transponder address. Assigned to 07-72037.
Is AE1F34 broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE1F34, octal 53417464, decimal 11,411,252.
What flights does AE1F34 operate?
Mode-S AE1F34 has broadcast 2 distinct callsigns, including LEGEND1, G72037.