sensors Mode-S transponder

AE4789

ICAO 24-bit transponder address

Currently assigned to 07-20037 · SIKORSKY UH-60 Black Hawk

Hex
AE4789
Octal
53443611
Decimal
11,421,577
Tail
07-20037
Type
H60
No current signal · last broadcast 1h ago
Flights observed
34
Distinct callsigns
8
Country
-
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S AE4789.

Callsign history 8 distinct

Callsign Airline Flights Last seen
WLDCT72 - 10 2026-06-08
WLDCT75 - 7 2026-06-04
WLDCT06 - 6 2026-05-31
WLDCT01 - 5 2026-05-18
WLDCT86 - 2 2026-05-31
ABLE12 - 2 2026-04-15
WLDCT55 - 1 2026-06-04
WLDCT13 - 1 2026-05-13

Recent flights last 34

DateFlightRouteTakeoffLandingDuration
2026-06-08 WLDCT72 CON → CON Jun 8, 23:20 UTCJun 9, 00:00 UTC40m
2026-06-08 WLDCT72 - Jun 8, 19:05 UTCJun 8, 19:30 UTC25m
2026-06-06 WLDCT72 - Jun 6, 17:29 UTCJun 6, 17:44 UTC15m
2026-06-06 WLDCT72 - Jun 6, 12:40 UTCJun 6, 12:49 UTC10m
2026-06-04 WLDCT75 CON → CON Jun 4, 18:00 UTCJun 4, 19:00 UTC1h 0m
2026-06-04 WLDCT72 - Jun 4, 14:40 UTCJun 4, 16:00 UTC1h 20m
2026-06-04 WLDCT55 - Jun 4, 00:00 UTCJun 4, 02:30 UTC2h 30m
2026-06-03 WLDCT72 - Jun 3, 01:35 UTCJun 3, 02:10 UTC35m
2026-06-03 WLDCT72 - Jun 3, 01:15 UTCJun 3, 01:30 UTC15m
2026-06-03 WLDCT72 - Jun 3, 00:15 UTCJun 3, 00:40 UTC25m
2026-06-02 WLDCT72 - Jun 2, 23:10 UTCJun 3, 00:10 UTC1h 0m
2026-05-31 WLDCT06 - May 31, 17:00 UTCMay 31, 17:10 UTC10m
2026-05-31 WLDCT86 - May 31, 14:40 UTCMay 31, 14:55 UTC15m
2026-05-31 WLDCT86 - May 31, 13:15 UTCMay 31, 13:30 UTC15m
2026-05-30 WLDCT72 - May 30, 17:45 UTCMay 30, 19:10 UTC1h 25m
2026-05-21 WLDCT75 - May 21, 19:15 UTCMay 21, 19:25 UTC10m
2026-05-21 WLDCT75 - May 21, 18:00 UTCMay 21, 18:30 UTC30m
2026-05-21 WLDCT06 - May 21, 00:55 UTCMay 21, 02:30 UTC1h 35m
2026-05-20 WLDCT06 - May 20, 18:50 UTCMay 20, 19:35 UTC45m
2026-05-20 WLDCT06 - May 20, 17:55 UTCMay 20, 18:05 UTC10m
2026-05-20 WLDCT75 - May 20, 01:20 UTCMay 20, 02:25 UTC1h 5m
2026-05-20 WLDCT75 - May 20, 00:40 UTCMay 20, 01:10 UTC30m
2026-05-18 WLDCT01 - May 18, 19:10 UTCMay 18, 19:25 UTC15m
2026-05-18 WLDCT01 - May 18, 17:40 UTCMay 18, 18:25 UTC45m
2026-05-13 WLDCT13 CON → CON May 13, 01:05 UTCMay 13, 02:40 UTC1h 35m
2026-05-09 WLDCT01 - May 9, 13:05 UTCMay 9, 14:40 UTC1h 35m
2026-05-08 WLDCT06 - May 8, 19:10 UTCMay 8, 19:40 UTC30m
2026-05-08 WLDCT06 - May 8, 18:15 UTCMay 8, 18:40 UTC25m
2026-04-20 WLDCT01 LEB → CON Apr 20, 18:50 UTCApr 20, 19:30 UTC40m
2026-04-20 WLDCT01 - Apr 20, 17:40 UTCApr 20, 18:35 UTC55m
2026-04-15 ABLE12 - Apr 15, 19:20 UTCApr 15, 19:30 UTC10m
2026-04-15 ABLE12 - Apr 15, 17:40 UTCApr 15, 17:55 UTC15m
2026-04-14 WLDCT75 - Apr 14, 18:55 UTCApr 14, 19:10 UTC15m
2026-04-14 WLDCT75 - Apr 14, 17:55 UTCApr 14, 18:45 UTC50m

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 07-20037 page for operator, model, and routing details .

Mode-S AE4789 frequently asked

What is Mode-S code AE4789?
AE4789 is an ICAO 24-bit transponder address. Assigned to 07-20037.
Is AE4789 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE4789, octal 53443611, decimal 11,421,577.
What flights does AE4789 operate?
Mode-S AE4789 has broadcast 8 distinct callsigns, including WLDCT72, WLDCT75, WLDCT06, WLDCT01, WLDCT86.