Apparatus

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sensors Mode-S transponder

AE1DB4

ICAO 24-bit transponder address

Currently assigned to 167824 · SIKORSKY UH-60 Black Hawk

Hex
AE1DB4
Octal
53416664
Decimal
11,410,868
Tail
167824
Type
H60
No current signal · last broadcast 15h ago
Flights observed
16
Distinct callsigns
3
Country
-
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S AE1DB4.

Callsign history 3 distinct

Callsign Airline Flights Last seen
HR612 - 7 2026-06-22
BB612 - 7 2026-07-21
BD612 - 2 2026-07-14

Recent flights last 16

DateFlightRouteTakeoffLandingDuration
2026-07-21 BB612 - Jul 21, 03:10 UTCJul 21, 05:45 UTC2h 35m
2026-07-14 BD612 - Jul 14, 11:35 UTCJul 14, 12:45 UTC1h 10m
2026-07-14 BD612 - Jul 14, 10:35 UTCJul 14, 11:00 UTC25m
2026-06-22 HR612 - Jun 22, 06:39 UTCJun 22, 07:25 UTC45m
2026-06-22 HR612 - Jun 22, 04:30 UTCJun 22, 04:40 UTC10m
2026-06-18 HR612 - Jun 18, 06:35 UTCJun 18, 07:05 UTC30m
2026-06-18 HR612 - Jun 18, 04:20 UTCJun 18, 04:40 UTC20m
2026-06-18 HR612 - Jun 18, 02:45 UTCJun 18, 03:00 UTC15m
2026-06-16 BB612 NJA → NJA Jun 16, 09:04 UTCJun 16, 11:49 UTC2h 45m
2026-06-11 BB612 - Jun 11, 04:20 UTCJun 11, 07:00 UTC2h 40m
2026-06-10 BB612 NJA → NJA Jun 10, 07:15 UTCJun 10, 09:15 UTC2h 0m
2026-06-10 BB612 NJA → NJA Jun 10, 04:50 UTCJun 10, 06:40 UTC1h 50m
2026-06-05 BB612 - Jun 5, 09:00 UTCJun 5, 09:40 UTC40m
2026-06-05 HR612 - Jun 5, 07:25 UTCJun 5, 07:45 UTC20m
2026-06-05 HR612 - Jun 5, 04:55 UTCJun 5, 06:55 UTC2h 0m
2026-06-04 BB612 NJA → NJA Jun 4, 06:50 UTCJun 4, 09:45 UTC2h 55m

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 167824 page for operator, model, and routing details .

Mode-S AE1DB4 frequently asked

What is Mode-S code AE1DB4?
AE1DB4 is an ICAO 24-bit transponder address. Assigned to 167824.
Is AE1DB4 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE1DB4, octal 53416664, decimal 11,410,868.
What flights does AE1DB4 operate?
Mode-S AE1DB4 has broadcast 3 distinct callsigns, including HR612, BB612, BD612.