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
- Flights observed
- 218
- Distinct callsigns
- 20
- Country
- SG
- Last broadcast
- Jul 26, 12:50 UTC
Last known position
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 |
|---|---|---|---|
| SIA32 | Singapore Airlines | 11 | 2026-07-21 |
| SIA31 | Singapore Airlines | 11 | 2026-07-21 |
| SIA378 | Singapore Airlines | 9 | 2026-06-11 |
| SIA377 | Singapore Airlines | 8 | 2026-06-11 |
| SIA298 | - | 8 | 2026-07-14 |
| SIA38 | - | 7 | 2026-07-17 |
| SIA37 | - | 7 | 2026-07-18 |
| SIA958 | Singapore Airlines | 6 | 2026-07-17 |
| SIA874 | Singapore Airlines | 6 | 2026-05-13 |
| SIA352 | Singapore Airlines | 6 | 2026-07-22 |
| SIA351 | Singapore Airlines | 6 | 2026-07-23 |
| SIA297 | - | 6 | 2026-07-13 |
| SIA959 | - | 5 | 2026-07-17 |
| SIA955 | - | 5 | 2026-07-06 |
| SIA952 | - | 5 | 2026-07-06 |
| SIA875 | Singapore Airlines | 5 | 2026-05-13 |
| SIA387 | - | 5 | 2026-04-13 |
| SIA302 | Singapore Airlines | 5 | 2026-07-07 |
| SIA301 | - | 5 | 2026-07-08 |
| SIA247 | Singapore Airlines | 5 | 2026-05-25 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | SIA432 | SIN → MLE | Jul 26, 02:50 UTC | Jul 26, 12:50 UTC | 10h 1m |
| 2026-07-25 | SIA313 | LHR → SIN | Jul 25, 12:25 UTC | Jul 26, 00:50 UTC | 12h 25m |
| 2026-07-24 | SIA314 | SIN → LHR | Jul 24, 18:50 UTC | Jul 25, 07:55 UTC | 13h 5m |
| 2026-07-24 | SIA208 | MEL → SIN | Jul 24, 16:15 UTC | Jul 24, 16:25 UTC | 10m |
| 2026-07-24 | SIA208 | MEL → SIN | Jul 24, 08:35 UTC | Jul 24, 09:45 UTC | 1h 10m |
| 2026-07-24 | SIA207 | SIN → MEL | Jul 24, 00:05 UTC | Jul 24, 06:35 UTC | 6h 30m |
| 2026-07-23 | SIA351 | CPH → SIN | Jul 23, 10:10 UTC | Jul 23, 21:55 UTC | 11h 45m |
| 2026-07-22 | SIA352 | SIN → CPH | Jul 22, 16:45 UTC | Jul 23, 05:20 UTC | 12h 35m |
| 2026-07-21 | SIA31 | SFO → SIN | Jul 21, 19:35 UTC | Jul 21, 20:00 UTC | 25m |
| 2026-07-21 | SIA32 | SIN → SFO | Jul 21, 03:50 UTC | Jul 21, 16:55 UTC | 13h 5m |
| 2026-07-20 | SIA355 | MXP → SIN | Jul 20, 11:10 UTC | Jul 20, 22:40 UTC | 11h 30m |
| 2026-07-19 | SIA356 | SIN → MXP | Jul 19, 16:00 UTC | Jul 20, 04:20 UTC | 12h 20m |
| 2026-07-18 | SIA37 | - | Jul 18, 07:45 UTC | Jul 18, 21:50 UTC | 14h 5m |
| 2026-07-17 | SIA38 | - | Jul 17, 16:10 UTC | Jul 18, 05:25 UTC | 13h 16m |
| 2026-07-17 | SIA959 | - | Jul 17, 08:10 UTC | Jul 17, 09:45 UTC | 1h 35m |
| 2026-07-17 | SIA958 | SIN → CGK | Jul 17, 04:59 UTC | Jul 17, 06:25 UTC | 1h 25m |
| 2026-07-16 | SIA313 | - | Jul 16, 11:50 UTC | Jul 17, 00:04 UTC | 12h 15m |
| 2026-07-15 | SIA314 | - | Jul 15, 19:30 UTC | Jul 16, 08:35 UTC | 13h 5m |
| 2026-07-15 | SIA895 | - | Jul 15, 15:00 UTC | Jul 15, 15:35 UTC | 35m |
| 2026-07-15 | SIA895 | - | Jul 15, 12:30 UTC | Jul 15, 12:45 UTC | 15m |
| 2026-07-15 | SIA894 | - | Jul 15, 09:50 UTC | Jul 15, 10:25 UTC | 35m |
| 2026-07-15 | SIA894 | - | Jul 15, 06:40 UTC | Jul 15, 07:05 UTC | 25m |
| 2026-07-14 | SIA298 | - | Jul 14, 09:10 UTC | Jul 14, 09:25 UTC | 15m |
| 2026-07-13 | SIA298 | - | Jul 13, 23:00 UTC | Jul 14, 05:40 UTC | 6h 40m |
| 2026-07-13 | SIA297 | - | Jul 13, 12:10 UTC | Jul 13, 21:00 UTC | 8h 50m |
| 2026-07-13 | SIA298 | - | Jul 13, 09:25 UTC | Jul 13, 09:35 UTC | 10m |
| 2026-07-12 | SIA298 | - | Jul 12, 23:00 UTC | Jul 13, 02:15 UTC | 3h 15m |
| 2026-07-12 | SIA297 | - | Jul 12, 12:10 UTC | Jul 12, 21:00 UTC | 8h 50m |
| 2026-07-12 | SIA959 | - | Jul 12, 08:01 UTC | Jul 12, 09:25 UTC | 1h 25m |
| 2026-07-12 | SIA958 | - | Jul 12, 06:10 UTC | Jul 12, 06:25 UTC | 15m |
| 2026-07-12 | SIA958 | - | Jul 12, 05:05 UTC | Jul 12, 05:35 UTC | 30m |
| 2026-07-11 | SIA303 | - | Jul 11, 10:00 UTC | Jul 11, 22:10 UTC | 12h 10m |
| 2026-07-10 | SIA304 | - | Jul 10, 16:20 UTC | Jul 11, 05:05 UTC | 12h 45m |
| 2026-07-10 | SIA895 | - | Jul 10, 11:10 UTC | Jul 10, 14:10 UTC | 3h 0m |
| 2026-07-10 | SIA894 | - | Jul 10, 08:35 UTC | Jul 10, 09:10 UTC | 35m |
| 2026-07-10 | SIA894 | - | Jul 10, 05:40 UTC | Jul 10, 06:05 UTC | 25m |
| 2026-07-09 | SIA431 | - | Jul 9, 02:30 UTC | Jul 9, 12:40 UTC | 10h 10m |
| 2026-07-08 | SIA301 | - | Jul 8, 10:00 UTC | Jul 8, 22:30 UTC | 12h 30m |
| 2026-07-07 | SIA302 | SIN → MAN | Jul 7, 18:25 UTC | Jul 8, 07:55 UTC | 13h 30m |
| 2026-07-06 | SIA337 | - | Jul 6, 21:15 UTC | Jul 7, 09:40 UTC | 12h 25m |
| 2026-07-06 | SIA338 | - | Jul 6, 05:55 UTC | Jul 6, 18:55 UTC | 13h 0m |
| 2026-07-06 | SIA955 | - | Jul 6, 02:30 UTC | Jul 6, 04:00 UTC | 1h 30m |
| 2026-07-06 | SIA952 | - | Jul 6, 00:55 UTC | Jul 6, 01:15 UTC | 20m |
| 2026-07-05 | SIA305 | - | Jul 5, 09:15 UTC | Jul 5, 21:30 UTC | 12h 15m |
| 2026-07-04 | SIA306 | - | Jul 4, 17:35 UTC | Jul 5, 07:15 UTC | 13h 40m |
| 2026-07-04 | SIA298 | - | Jul 4, 09:35 UTC | Jul 4, 09:45 UTC | 10m |
| 2026-07-03 | SIA298 | - | Jul 3, 23:00 UTC | Jul 4, 02:10 UTC | 3h 10m |
| 2026-07-03 | SIA297 | SIN → CHC | Jul 3, 20:50 UTC | Jul 3, 21:10 UTC | 20m |
| 2026-07-03 | SIA297 | SIN → CHC | Jul 3, 18:30 UTC | Jul 3, 19:20 UTC | 50m |
| 2026-07-02 | SIA27 | SEA → SIN | Jul 2, 17:40 UTC | Jul 3, 07:15 UTC | 13h 35m |
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 .