Apparatus

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sensors Mode-S transponder

76CD71

ICAO 24-bit transponder address · allocated to Singapore

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

Hex
76CD71
Octal
35546561
Decimal
7,785,841
Country
SG
Tail
9V-SKQ
Type
A388
No current signal · last broadcast 1h ago
Flights observed
100
Distinct callsigns
12
Country
SG
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 76CD71.

Country allocation

The ICAO 24-bit address 76CD71 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 12 distinct

Callsign Airline Flights Last seen
SIA424 Singapore Airlines 13 2026-05-22
SIA423 Singapore Airlines 12 2026-05-22
SIA322 Singapore Airlines 11 2026-05-29
SIA403 Singapore Airlines 10 2026-05-26
SIA317 Singapore Airlines 10 2026-05-14
SIA406 Singapore Airlines 9 2026-05-26
SIA308 Singapore Airlines 9 2026-05-28
SIA326 Singapore Airlines 7 2026-05-25
SIA325 Singapore Airlines 7 2026-05-25
SIA319 Singapore Airlines 6 2026-05-28
SIA833 Singapore Airlines 3 2026-05-24
SIA830 Singapore Airlines 3 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SIA322 SIN → LHR May 29, 15:30 UTCMay 30, 04:15 UTC12h 45m
2026-05-28 SIA319 LHR → SIN May 28, 19:55 UTCMay 29, 07:55 UTC12h 0m
2026-05-28 SIA308 SIN → LHR May 28, 01:30 UTCMay 28, 15:20 UTC13h 50m
2026-05-27 SIA830 SIN → PVG May 27, 02:19 UTCMay 27, 13:25 UTC11h 5m
2026-05-26 SIA403 DEL → SIN May 26, 17:09 UTCMay 26, 22:09 UTC5h 0m
2026-05-26 SIA406 SIN → DEL May 26, 09:55 UTCMay 26, 15:00 UTC5h 5m
2026-05-25 SIA325 FRA → SIN May 25, 19:59 UTCMay 26, 07:40 UTC11h 40m
2026-05-25 SIA326 SIN → FRA May 25, 05:25 UTCMay 25, 18:00 UTC12h 35m
2026-05-24 SIA833 PVG → SIN May 24, 14:55 UTCMay 24, 15:05 UTC10m
2026-05-24 SIA830 SIN → PVG May 24, 03:35 UTCMay 24, 12:20 UTC8h 45m
2026-05-23 SIA833 PVG → SIN May 23, 02:05 UTCMay 23, 13:55 UTC11h 49m
2026-05-22 SIA423 BOM → SIN May 22, 22:50 UTCMay 22, 23:35 UTC45m
2026-05-22 SIA423 BOM → SIN May 22, 18:50 UTCMay 22, 19:00 UTC10m
2026-05-22 SIA424 SIN → BOM May 22, 15:40 UTCMay 22, 16:00 UTC20m
2026-05-22 SIA424 SIN → BOM May 22, 11:20 UTCMay 22, 11:55 UTC36m
2026-05-21 SIA325 FRA → SIN May 21, 20:00 UTCMay 22, 07:50 UTC11h 50m
2026-05-21 SIA326 SIN → FRA May 21, 05:05 UTCMay 21, 17:15 UTC12h 10m
2026-05-19 SIA830 SIN → PVG May 19, 01:55 UTCMay 19, 13:25 UTC11h 30m
2026-05-18 SIA403 DEL → SIN May 18, 17:00 UTCMay 18, 22:05 UTC5h 4m
2026-05-18 SIA406 SIN → DEL May 18, 09:35 UTCMay 18, 14:20 UTC4h 45m
2026-05-17 SIA423 BOM → SIN May 17, 22:30 UTCMay 17, 23:25 UTC55m
2026-05-17 SIA423 BOM → SIN May 17, 18:35 UTCMay 17, 18:45 UTC10m
2026-05-17 SIA424 SIN → BOM May 17, 15:40 UTCMay 17, 16:05 UTC25m
2026-05-17 SIA424 SIN → BOM May 17, 11:20 UTCMay 17, 12:01 UTC40m
2026-05-16 SIA325 FRA → SIN May 16, 20:15 UTCMay 17, 08:10 UTC11h 55m
2026-05-16 SIA326 SIN → FRA May 16, 05:30 UTCMay 16, 17:40 UTC12h 11m
2026-05-15 SIA423 BOM → SIN May 15, 22:55 UTCMay 15, 23:40 UTC45m
2026-05-15 SIA423 BOM → SIN May 15, 18:55 UTCMay 15, 19:05 UTC10m
2026-05-15 SIA424 SIN → BOM May 15, 16:10 UTCMay 15, 16:20 UTC10m
2026-05-15 SIA424 SIN → BOM May 15, 11:40 UTCMay 15, 15:15 UTC3h 34m
2026-05-14 SIA317 LHR → SIN May 14, 10:50 UTCMay 14, 23:10 UTC12h 20m
2026-05-13 SIA322 SIN → LHR May 13, 15:40 UTCMay 14, 04:45 UTC13h 5m
2026-05-12 SIA424 SIN → BOM May 12, 11:25 UTCMay 12, 23:15 UTC11h 50m
2026-05-11 SIA319 LHR → SIN May 11, 20:05 UTCMay 12, 07:55 UTC11h 50m
2026-05-11 SIA308 SIN → LHR May 11, 01:25 UTCMay 11, 14:45 UTC13h 20m
2026-05-10 SIA403 DEL → SIN May 10, 16:50 UTCMay 10, 21:30 UTC4h 40m
2026-05-10 SIA406 SIN → DEL May 10, 09:24 UTCMay 10, 14:30 UTC5h 5m
2026-05-09 SIA833 PVG → SIN May 9, 04:40 UTCMay 9, 13:40 UTC9h 0m
2026-05-08 SIA403 DEL → SIN May 8, 17:10 UTCMay 8, 21:45 UTC4h 35m
2026-05-08 SIA406 SIN → DEL May 8, 09:59 UTCMay 8, 15:15 UTC5h 15m
2026-05-07 SIA325 FRA → SIN May 7, 20:00 UTCMay 8, 07:24 UTC11h 24m
2026-05-07 SIA326 SIN → FRA May 7, 05:35 UTCMay 7, 17:50 UTC12h 15m
2026-05-06 SIA423 BOM → SIN May 6, 11:25 UTCMay 6, 23:55 UTC12h 29m
2026-05-05 SIA319 LHR → SIN May 5, 19:55 UTCMay 6, 07:55 UTC12h 0m
2026-05-05 SIA308 SIN → LHR May 5, 01:30 UTCMay 5, 14:45 UTC13h 15m
2026-05-04 SIA403 DEL → SIN May 4, 16:55 UTCMay 4, 21:40 UTC4h 46m
2026-05-04 SIA406 SIN → DEL May 4, 09:25 UTCMay 4, 14:30 UTC5h 5m
2026-05-02 SIA325 FRA → SIN May 2, 20:05 UTCMay 3, 07:45 UTC11h 39m
2026-05-02 SIA326 SIN → FRA May 2, 05:10 UTCMay 2, 17:35 UTC12h 25m
2026-05-01 SIA317 LHR → SIN May 1, 10:55 UTCMay 1, 23:10 UTC12h 15m

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-SKQ page for operator, model, and routing details .

Mode-S 76CD71 frequently asked

What is Mode-S code 76CD71?
76CD71 is an ICAO 24-bit transponder address. Allocated to Singapore. Assigned to 9V-SKQ.
Where is Mode-S 76CD71 registered?
Mode-S code 76CD71 is allocated to Singapore (SG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 76CD71 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 76CD71, octal 35546561, decimal 7,785,841.
What flights does 76CD71 operate?
Mode-S 76CD71 has broadcast 12 distinct callsigns, including SIA424, SIA423, SIA322, SIA403, SIA317.