Apparatus

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sensors Mode-S transponder

AE2777

ICAO 24-bit transponder address

Currently assigned to 166316 · SIKORSKY UH-60 Black Hawk

Hex
AE2777
Octal
53423567
Decimal
11,413,367
Tail
166316
Type
H60
No current signal · last broadcast 1d ago
Flights observed
19
Distinct callsigns
4
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AE2777.

Callsign history 4 distinct

Callsign Airline Flights Last seen
RDHK720 - 10 2026-07-16
RHWK720 - 6 2026-07-16
FFAB123 - 2 2026-07-15
HAWK12 - 1 2026-06-04

Recent flights last 19

DateFlightRouteTakeoffLandingDuration
2026-07-16 RHWK720 - Jul 16, 20:55 UTCJul 16, 21:45 UTC50m
2026-07-16 RHWK720 NGU → FAF Jul 16, 19:10 UTCJul 16, 20:15 UTC1h 5m
2026-07-16 RHWK720 - Jul 16, 18:15 UTCJul 16, 18:55 UTC40m
2026-07-16 RHWK720 - Jul 16, 17:20 UTCJul 16, 17:30 UTC10m
2026-07-16 RHWK720 FAF → NGU Jul 16, 16:05 UTCJul 16, 16:35 UTC30m
2026-07-16 RHWK720 - Jul 16, 14:40 UTCJul 16, 14:50 UTC10m
2026-07-16 RDHK720 - Jul 16, 04:15 UTCJul 16, 04:25 UTC10m
2026-07-15 FFAB123 - Jul 15, 20:40 UTCJul 15, 21:10 UTC30m
2026-07-15 FFAB123 - Jul 15, 20:10 UTCJul 15, 20:35 UTC25m
2026-07-13 RDHK720 - Jul 13, 19:35 UTCJul 13, 20:05 UTC30m
2026-07-13 RDHK720 - Jul 13, 17:35 UTCJul 13, 18:35 UTC1h 0m
2026-07-13 RDHK720 NGU → NGU Jul 13, 14:30 UTCJul 13, 15:50 UTC1h 20m
2026-06-09 RDHK720 - Jun 9, 00:15 UTCJun 9, 00:45 UTC30m
2026-06-08 RDHK720 - Jun 8, 19:10 UTCJun 8, 20:25 UTC1h 15m
2026-06-08 RDHK720 - Jun 8, 16:35 UTCJun 8, 18:15 UTC1h 40m
2026-06-08 RDHK720 - Jun 8, 15:04 UTCJun 8, 15:35 UTC30m
2026-06-05 RDHK720 - Jun 5, 22:15 UTCJun 5, 22:25 UTC10m
2026-06-04 HAWK12 - Jun 4, 01:25 UTCJun 4, 01:50 UTC25m
2026-06-02 RDHK720 NGU → NGU Jun 2, 14:40 UTCJun 2, 15:45 UTC1h 5m

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 166316 page for operator, model, and routing details .

Mode-S AE2777 frequently asked

What is Mode-S code AE2777?
AE2777 is an ICAO 24-bit transponder address. Assigned to 166316.
Is AE2777 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 AE2777, octal 53423567, decimal 11,413,367.
What flights does AE2777 operate?
Mode-S AE2777 has broadcast 4 distinct callsigns, including RDHK720, RHWK720, FFAB123, HAWK12.