Apparatus

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sensors Mode-S transponder

76CD79

ICAO 24-bit transponder address · allocated to Singapore

Currently assigned to 9V-SKY · AIRBUS A-380-800

Hex
76CD79
Octal
35546571
Decimal
7,785,849
Country
SG
Tail
9V-SKY
Type
A388
No current signal · last broadcast 2h ago
Flights observed
199
Distinct callsigns
20
Country
SG
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 76CD79.

Country allocation

The ICAO 24-bit address 76CD79 falls within the block assigned to Singapore (SG) by ICAO Annex 10, Volume III. Every aircraft registered in Singapore receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
SIA317 Singapore Airlines 23 2026-07-03
SIA322 Singapore Airlines 20 2026-07-02
SIA232 - 17 2026-07-11
SIA424 - 13 2026-07-11
SIA221 - 13 2026-07-10
SIA325 Singapore Airlines 12 2026-06-24
SIA326 - 11 2026-06-24
SIA319 Singapore Airlines 10 2026-07-06
SIA308 - 10 2026-07-06
SIA231 - 10 2026-07-13
SIA423 - 9 2026-07-11
SIA406 - 9 2026-06-12
SIA403 Singapore Airlines 9 2026-06-12
SIA222 - 9 2026-06-23
SIA228 - 5 2026-07-02
SIA893 - 4 2026-07-12
SIA892 - 4 2026-07-12
SIA237 Singapore Airlines 4 2026-07-01
SIA830 - 3 2026-07-04
SIA833 - 2 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SIA231 - Jul 13, 18:10 UTCJul 13, 23:50 UTC5h 40m
2026-07-12 SIA827D - Jul 12, 22:55 UTCJul 13, 11:50 UTC12h 55m
2026-07-12 SIA893 - Jul 12, 10:55 UTCJul 12, 11:25 UTC30m
2026-07-12 SIA893 - Jul 12, 08:10 UTCJul 12, 08:25 UTC15m
2026-07-12 SIA892 - Jul 12, 05:10 UTCJul 12, 05:35 UTC25m
2026-07-12 SIA892 - Jul 12, 02:15 UTCJul 12, 02:35 UTC20m
2026-07-11 SIA423 - Jul 11, 19:40 UTCJul 11, 23:35 UTC3h 55m
2026-07-11 SIA423 - Jul 11, 18:35 UTCJul 11, 18:45 UTC10m
2026-07-11 SIA424 - Jul 11, 15:25 UTCJul 11, 15:45 UTC20m
2026-07-11 SIA424 - Jul 11, 11:25 UTCJul 11, 12:05 UTC40m
2026-07-11 SIA232 - Jul 11, 01:20 UTCJul 11, 02:10 UTC50m
2026-07-10 SIA221 - Jul 10, 19:30 UTCJul 10, 20:10 UTC40m
2026-07-09 SIA423 - Jul 9, 22:40 UTCJul 9, 23:25 UTC45m
2026-07-09 SIA424 - Jul 9, 15:40 UTCJul 9, 16:00 UTC20m
2026-07-09 SIA424 - Jul 9, 11:40 UTCJul 9, 15:00 UTC3h 20m
2026-07-09 SIA232 - Jul 9, 01:30 UTCJul 9, 09:30 UTC8h 0m
2026-07-08 SIA221 - Jul 8, 13:45 UTCJul 8, 20:55 UTC7h 10m
2026-07-08 SIA232 - Jul 8, 01:30 UTCJul 8, 09:25 UTC7h 55m
2026-07-07 SIA221 SIN → SYD Jul 7, 19:30 UTCJul 7, 20:35 UTC1h 5m
2026-07-06 SIA319 LHR → SIN Jul 6, 20:10 UTCJul 7, 08:20 UTC12h 10m
2026-07-06 SIA308 - Jul 6, 01:40 UTCJul 6, 14:55 UTC13h 15m
2026-07-04 SIA830 - Jul 4, 01:55 UTCJul 4, 15:55 UTC14h 0m
2026-07-03 SIA317 LHR → SIN Jul 3, 10:45 UTCJul 3, 22:45 UTC12h 0m
2026-07-02 SIA322 SIN → LHR Jul 2, 15:55 UTCJul 3, 05:00 UTC13h 5m
2026-07-02 SIA228 - Jul 2, 05:45 UTCJul 2, 07:00 UTC1h 15m
2026-07-01 SIA237 SIN → MEL Jul 1, 18:25 UTCJul 2, 00:35 UTC6h 10m
2026-07-01 SIA893 - Jul 1, 10:45 UTCJul 1, 11:20 UTC35m
2026-07-01 SIA893 - Jul 1, 08:10 UTCJul 1, 08:25 UTC15m
2026-07-01 SIA892 - Jul 1, 05:25 UTCJul 1, 05:40 UTC15m
2026-07-01 SIA892 - Jul 1, 02:15 UTCJul 1, 02:40 UTC25m
2026-06-30 SIA833 - Jun 30, 02:00 UTCJun 30, 13:35 UTC11h 35m
2026-06-29 SIA317 LHR → SIN Jun 29, 11:14 UTCJun 29, 23:19 UTC12h 5m
2026-06-28 SIA322 SIN → LHR Jun 28, 15:29 UTCJun 29, 04:25 UTC12h 55m
2026-06-28 SIA232 - Jun 28, 09:25 UTCJun 28, 09:34 UTC10m
2026-06-28 SIA232 - Jun 28, 01:25 UTCJun 28, 02:05 UTC40m
2026-06-27 SIA221 SIN → SYD Jun 27, 13:15 UTCJun 27, 20:44 UTC7h 30m
2026-06-27 SIA232 - Jun 27, 09:04 UTCJun 27, 09:15 UTC10m
2026-06-27 SIA232 - Jun 27, 01:24 UTCJun 27, 01:54 UTC30m
2026-06-26 SIA221 SIN → SYD Jun 26, 14:25 UTCJun 26, 20:29 UTC6h 5m
2026-06-26 SIA221 SIN → SYD Jun 26, 13:19 UTCJun 26, 13:30 UTC10m
2026-06-26 SIA232 - Jun 26, 01:24 UTCJun 26, 02:00 UTC35m
2026-06-25 SIA221 SIN → SYD Jun 25, 14:24 UTCJun 25, 20:34 UTC6h 10m
2026-06-24 SIA325 FRA → SIN Jun 24, 20:05 UTCJun 25, 07:59 UTC11h 55m
2026-06-24 SIA326 - Jun 24, 05:09 UTCJun 24, 17:14 UTC12h 5m
2026-06-23 SIA222 - Jun 23, 05:15 UTCJun 23, 05:45 UTC30m
2026-06-22 SIA231 SIN → SYD Jun 22, 17:15 UTCJun 22, 23:50 UTC6h 35m
2026-06-22 SIA222 - Jun 22, 05:04 UTCJun 22, 05:40 UTC35m
2026-06-21 SIA231 SIN → SYD Jun 21, 17:20 UTCJun 22, 00:04 UTC6h 45m
2026-06-21 SIA222 - Jun 21, 05:10 UTCJun 21, 05:49 UTC40m
2026-06-20 SIA231 SIN → SYD Jun 20, 23:29 UTCJun 21, 00:04 UTC35m

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 9V-SKY page for operator, model, and routing details .

Mode-S 76CD79 frequently asked

What is Mode-S code 76CD79?
76CD79 is an ICAO 24-bit transponder address. Allocated to Singapore. Assigned to 9V-SKY.
Where is Mode-S 76CD79 registered?
Mode-S code 76CD79 is allocated to Singapore (SG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 76CD79 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 76CD79, octal 35546571, decimal 7,785,849.
What flights does 76CD79 operate?
Mode-S 76CD79 has broadcast 20 distinct callsigns, including SIA317, SIA322, SIA232, SIA424, SIA221.