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sensors Mode-S transponder

76CD12

ICAO 24-bit transponder address · allocated to Singapore

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

Hex
76CD12
Octal
35546422
Decimal
7,785,746
Country
SG
Tail
9V-SHR
Type
A359
Broadcasting now · callsign SIA255 · 39,000 ft
Flights observed
293
Distinct callsigns
20
Country
SG
Last broadcast
Jul 26, 22:30 UTC

Current position

76CD12 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 76CD12 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
SIA505 - 10 2026-07-19
SIA504 Singapore Airlines 9 2026-07-26
SIA213 - 9 2026-06-28
SIA266 - 8 2026-07-09
SIA226 - 8 2026-06-29
SIA223 - 8 2026-07-11
SIA805 Singapore Airlines 7 2026-06-05
SIA612 - 7 2026-07-16
SIA605 Singapore Airlines 7 2026-06-28
SIA510 - 7 2026-06-26
SIA265 - 7 2026-07-09
SIA245 - 7 2026-07-10
SIA214 - 7 2026-07-11
SIA191 Singapore Airlines 7 2026-07-26
SIA899 Singapore Airlines 6 2026-07-22
SIA898 Singapore Airlines 6 2026-07-21
SIA800 Singapore Airlines 6 2026-06-04
SIA611 Singapore Airlines 6 2026-07-17
SIA606 - 6 2026-06-28
SIA523 Singapore Airlines 6 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SIA504 SIN → AMD Jul 26, 11:30 UTCJul 26, 22:30 UTC11h 0m
2026-07-26 SIA191 HAN → SIN Jul 26, 06:35 UTCJul 26, 09:25 UTC2h 50m
2026-07-26 SIA192 SIN → HAN Jul 26, 01:40 UTCJul 26, 04:25 UTC2h 45m
2026-07-25 SIA523 HYD → SIN Jul 25, 13:40 UTCJul 25, 23:30 UTC9h 50m
2026-07-23 SIA437 MLE → SIN Jul 23, 12:50 UTCJul 23, 22:45 UTC9h 55m
2026-07-23 SIA509 BLR → SIN Jul 23, 06:25 UTCJul 23, 10:40 UTC4h 15m
2026-07-23 SIA508 SIN → BLR Jul 23, 04:25 UTCJul 23, 04:45 UTC20m
2026-07-23 SIA508 SIN → BLR Jul 23, 01:05 UTCJul 23, 01:45 UTC40m
2026-07-22 SIA839 HGH → SIN Jul 22, 10:20 UTCJul 22, 21:10 UTC10h 50m
2026-07-22 SIA899 HKG → SIN Jul 22, 04:30 UTCJul 22, 05:25 UTC55m
2026-07-22 SIA899 HKG → SIN Jul 22, 01:40 UTCJul 22, 01:55 UTC15m
2026-07-21 SIA898 SIN → HKG Jul 21, 14:30 UTCJul 21, 14:55 UTC25m
2026-07-21 SIA898 SIN → HKG Jul 21, 11:35 UTCJul 21, 12:00 UTC25m
2026-07-21 SIA191 HAN → SIN Jul 21, 06:10 UTCJul 21, 09:10 UTC3h 0m
2026-07-21 SIA192 SIN → HAN Jul 21, 03:55 UTCJul 21, 04:15 UTC20m
2026-07-21 SIA192 SIN → HAN Jul 21, 01:25 UTCJul 21, 01:50 UTC25m
2026-07-20 SIA437 MLE → SIN Jul 20, 12:55 UTCJul 20, 22:55 UTC10h 0m
2026-07-20 SIA509 BLR → SIN Jul 20, 06:25 UTCJul 20, 10:30 UTC4h 5m
2026-07-20 SIA508 SIN → BLR Jul 20, 01:05 UTCJul 20, 04:45 UTC3h 40m
2026-07-19 SIA505 - Jul 19, 11:20 UTCJul 19, 22:45 UTC11h 25m
2026-07-18 SIA504 - Jul 18, 11:05 UTCJul 18, 22:50 UTC11h 45m
2026-07-18 SIA721 BKK → SIN Jul 18, 08:05 UTCJul 18, 08:45 UTC40m
2026-07-18 SIA721 BKK → SIN Jul 18, 06:50 UTCJul 18, 07:05 UTC15m
2026-07-18 SIA722 SIN → HKT Jul 18, 04:35 UTCJul 18, 04:55 UTC20m
2026-07-18 SIA722 SIN → HKT Jul 18, 03:00 UTCJul 18, 03:40 UTC40m
2026-07-17 SIA611 ICN → SIN Jul 17, 02:39 UTCJul 17, 08:30 UTC5h 50m
2026-07-16 SIA612 - Jul 16, 21:30 UTCJul 17, 00:25 UTC2h 55m
2026-07-16 SIA612 - Jul 16, 18:29 UTCJul 16, 18:40 UTC10m
2026-07-16 SIA242 - Jul 16, 09:05 UTCJul 16, 09:40 UTC35m
2026-07-15 SIA241 - Jul 15, 23:40 UTCJul 16, 07:05 UTC7h 25m
2026-07-15 SIA839 - Jul 15, 10:05 UTCJul 15, 21:15 UTC11h 10m
2026-07-14 SIA827 - Jul 14, 17:45 UTCJul 15, 05:05 UTC11h 19m
2026-07-14 SIA204 - Jul 14, 14:20 UTCJul 14, 14:30 UTC10m
2026-07-14 SIA203 - Jul 14, 00:50 UTCJul 14, 01:00 UTC10m
2026-07-13 SIA838 - Jul 13, 10:10 UTCJul 13, 21:05 UTC10h 55m
2026-07-13 SIA631 - Jul 13, 06:20 UTCJul 13, 06:30 UTC10m
2026-07-13 SIA631 - Jul 13, 00:25 UTCJul 13, 04:55 UTC4h 30m
2026-07-12 SIA636 - Jul 12, 18:30 UTCJul 12, 21:45 UTC3h 15m
2026-07-12 SIA236 - Jul 12, 05:01 UTCJul 12, 08:50 UTC3h 50m
2026-07-11 SIA255 - Jul 11, 23:20 UTCJul 11, 23:50 UTC30m
2026-07-11 SIA255 - Jul 11, 17:10 UTCJul 11, 17:20 UTC10m
2026-07-11 SIA214 - Jul 11, 09:05 UTCJul 11, 13:55 UTC4h 50m
2026-07-11 SIA223 - Jul 11, 01:45 UTCJul 11, 06:15 UTC4h 30m
2026-07-10 SIA246 - Jul 10, 13:55 UTCJul 10, 14:35 UTC40m
2026-07-10 SIA245 - Jul 10, 08:35 UTCJul 10, 09:10 UTC35m
2026-07-09 SIA266 - Jul 9, 15:50 UTCJul 9, 16:00 UTC10m
2026-07-09 SIA266 - Jul 9, 08:15 UTCJul 9, 08:50 UTC35m
2026-07-09 SIA265 - Jul 9, 05:30 UTCJul 9, 06:00 UTC30m
2026-07-08 SIA921 - Jul 8, 10:40 UTCJul 8, 11:55 UTC1h 15m
2026-07-08 SIA916 - Jul 8, 07:20 UTCJul 8, 09:00 UTC1h 40m

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

Mode-S 76CD12 frequently asked

What is Mode-S code 76CD12?
76CD12 is an ICAO 24-bit transponder address. Allocated to Singapore. Assigned to 9V-SHR.
Where is Mode-S 76CD12 registered?
Mode-S code 76CD12 is allocated to Singapore (SG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 76CD12 broadcasting right now?
Yes. Mode-S 76CD12 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 76CD12, octal 35546422, decimal 7,785,746.
What flights does 76CD12 operate?
Mode-S 76CD12 has broadcast 20 distinct callsigns, including SIA505, SIA504, SIA213, SIA266, SIA226.