Apparatus

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sensors Mode-S transponder

76CDB9

ICAO 24-bit transponder address · allocated to Singapore

Currently assigned to 9V-SMY · AIRBUS A-350-900

Hex
76CDB9
Octal
35546671
Decimal
7,785,913
Country
SG
Tail
9V-SMY
Type
A359
No current signal · last broadcast 1h ago
Flights observed
121
Distinct callsigns
20
Country
SG
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 76CDB9.

Country allocation

The ICAO 24-bit address 76CDB9 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
SIA378 Singapore Airlines 7 2026-04-16
SIA377 - 7 2026-04-16
SIA874 Singapore Airlines 6 2026-05-13
SIA32 Singapore Airlines 6 2026-05-22
SIA875 Singapore Airlines 5 2026-05-13
SIA387 - 5 2026-04-13
SIA31 Singapore Airlines 5 2026-05-22
SIA247 Singapore Airlines 5 2026-05-25
SIA955 Singapore Airlines 4 2026-05-27
SIA952 Singapore Airlines 4 2026-05-27
SIA388 Singapore Airlines 4 2026-04-13
SIA352 Singapore Airlines 4 2026-05-23
SIA351 Singapore Airlines 4 2026-05-24
SIA248 Singapore Airlines 4 2026-05-25
SIA959 Singapore Airlines 3 2026-05-25
SIA958 Singapore Airlines 3 2026-05-25
SIA38 Singapore Airlines 3 2026-05-29
SIA27 Singapore Airlines 3 2026-05-29
SIA184 Singapore Airlines 3 2026-05-27
SIA962 Singapore Airlines 2 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SIA38 SIN → LAX May 29, 16:10 UTCMay 30, 04:15 UTC12h 5m
2026-05-29 SIA27 SEA → SIN May 29, 09:20 UTCMay 29, 09:45 UTC25m
2026-05-28 SIA27 SEA → SIN May 28, 18:05 UTCMay 29, 06:45 UTC12h 40m
2026-05-28 SIA28 SIN → SEA May 28, 04:15 UTCMay 28, 15:45 UTC11h 30m
2026-05-27 SIA184 SIN → SGN May 27, 05:49 UTCMay 27, 10:30 UTC4h 41m
2026-05-27 SIA955 CGK → SIN May 27, 02:54 UTCMay 27, 04:04 UTC1h 10m
2026-05-27 SIA952 SIN → CGK May 27, 00:10 UTCMay 27, 00:39 UTC30m
2026-05-26 SIA184 SIN → SGN May 26, 05:54 UTCMay 26, 10:20 UTC4h 25m
2026-05-25 SIA248 MEL → SIN May 25, 20:24 UTCMay 25, 21:35 UTC1h 10m
2026-05-25 SIA247 SIN → MEL May 25, 17:40 UTCMay 25, 18:45 UTC1h 5m
2026-05-25 SIA959 CGK → SIN May 25, 07:45 UTCMay 25, 08:35 UTC50m
2026-05-25 SIA958 SIN → CGK May 25, 05:10 UTCMay 25, 05:40 UTC30m
2026-05-24 SIA351 CPH → SIN May 24, 10:15 UTCMay 24, 21:45 UTC11h 30m
2026-05-23 SIA352 SIN → CPH May 23, 16:40 UTCMay 24, 05:15 UTC12h 36m
2026-05-22 SIA31 SFO → SIN May 22, 19:00 UTCMay 23, 08:05 UTC13h 4m
2026-05-22 SIA32 SIN → SFO May 22, 04:40 UTCMay 22, 15:50 UTC11h 10m
2026-05-21 SIA35 LAX → SIN May 21, 04:25 UTCMay 21, 18:55 UTC14h 30m
2026-05-20 SIA36 SIN → LAX May 20, 14:20 UTCMay 21, 02:10 UTC11h 50m
2026-05-19 SIA37 LAX → SIN May 19, 06:35 UTCMay 19, 21:45 UTC15h 10m
2026-05-18 SIA38 SIN → LAX May 18, 16:05 UTCMay 19, 04:10 UTC12h 4m
2026-05-18 SIA959 CGK → SIN May 18, 07:55 UTCMay 18, 08:50 UTC55m
2026-05-18 SIA958 SIN → CGK May 18, 06:05 UTCMay 18, 06:20 UTC15m
2026-05-17 SIA301 MAN → SIN May 17, 09:50 UTCMay 17, 22:05 UTC12h 15m
2026-05-16 SIA302 SIN → MAN May 16, 18:25 UTCMay 17, 07:25 UTC13h 0m
2026-05-16 SIA721 BKK → SIN May 16, 06:55 UTCMay 16, 08:36 UTC1h 40m
2026-05-16 SIA722 SIN → HKT May 16, 03:05 UTCMay 16, 05:05 UTC2h 0m
2026-05-15 SIA37 LAX → SIN May 15, 06:45 UTCMay 15, 21:30 UTC14h 44m
2026-05-14 SIA38 SIN → LAX May 14, 14:45 UTCMay 15, 03:35 UTC12h 50m
2026-05-13 SIA298 CHC → SIN May 13, 23:25 UTCMay 14, 02:25 UTC3h 0m
2026-05-13 SIA297 SIN → CHC May 13, 18:45 UTCMay 13, 21:45 UTC3h 0m
2026-05-13 SIA875 HKG → SIN May 13, 07:25 UTCMay 13, 07:40 UTC15m
2026-05-13 SIA875 HKG → SIN May 13, 04:50 UTCMay 13, 05:05 UTC15m
2026-05-13 SIA874 SIN → HKG May 13, 02:35 UTCMay 13, 03:00 UTC25m
2026-05-12 SIA874 SIN → HKG May 12, 23:50 UTCMay 13, 00:05 UTC15m
2026-05-12 SIA351 CPH → SIN May 12, 10:05 UTCMay 12, 21:30 UTC11h 25m
2026-05-11 SIA352 SIN → CPH May 11, 16:55 UTCMay 12, 05:30 UTC12h 36m
2026-05-11 SIA432 SIN → MLE May 11, 02:45 UTCMay 11, 12:10 UTC9h 25m
2026-05-10 SIA351 CPH → SIN May 10, 10:10 UTCMay 10, 21:19 UTC11h 10m
2026-05-09 SIA352 SIN → CPH May 9, 16:35 UTCMay 10, 05:20 UTC12h 45m
2026-05-09 SIA184 SIN → SGN May 9, 06:00 UTCMay 9, 10:05 UTC4h 5m
2026-05-09 SIA955 CGK → SIN May 9, 02:45 UTCMay 9, 03:45 UTC1h 0m
2026-05-09 SIA952 SIN → CGK May 9, 01:20 UTCMay 9, 01:30 UTC10m
2026-05-09 SIA952 SIN → CGK May 9, 00:25 UTCMay 9, 00:45 UTC20m
2026-05-08 SIA327 MUC → SIN May 8, 10:49 UTCMay 8, 21:40 UTC10h 50m
2026-05-07 SIA328 SIN → MUC May 7, 16:45 UTCMay 8, 05:20 UTC12h 35m
2026-05-07 SIA125 KUL → SIN May 7, 13:00 UTCMay 7, 13:25 UTC25m
2026-05-07 SIA126 SIN → KUL May 7, 10:55 UTCMay 7, 11:20 UTC25m
2026-05-07 SIA875 HKG → SIN May 7, 07:55 UTCMay 7, 08:05 UTC10m
2026-05-07 SIA875 HKG → SIN May 7, 05:10 UTCMay 7, 05:25 UTC15m
2026-05-07 SIA874 SIN → HKG May 7, 02:40 UTCMay 7, 03:05 UTC25m

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

Mode-S 76CDB9 frequently asked

What is Mode-S code 76CDB9?
76CDB9 is an ICAO 24-bit transponder address. Allocated to Singapore. Assigned to 9V-SMY.
Where is Mode-S 76CDB9 registered?
Mode-S code 76CDB9 is allocated to Singapore (SG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 76CDB9 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 76CDB9, octal 35546671, decimal 7,785,913.
What flights does 76CDB9 operate?
Mode-S 76CDB9 has broadcast 20 distinct callsigns, including SIA378, SIA377, SIA874, SIA32, SIA875.