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
- 195
- Distinct callsigns
- 20
- Country
- SG
- Last broadcast
- 3h ago
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 | - | 10 | 2026-06-27 |
| SIA31 | - | 10 | 2026-06-27 |
| SIA378 | Singapore Airlines | 9 | 2026-06-11 |
| SIA377 | Singapore Airlines | 8 | 2026-06-11 |
| SIA298 | - | 7 | 2026-07-13 |
| SIA874 | Singapore Airlines | 6 | 2026-05-13 |
| SIA38 | Singapore Airlines | 6 | 2026-06-30 |
| SIA37 | Singapore Airlines | 6 | 2026-07-01 |
| SIA297 | - | 6 | 2026-07-13 |
| SIA958 | - | 5 | 2026-07-12 |
| SIA955 | - | 5 | 2026-07-06 |
| SIA952 | - | 5 | 2026-07-06 |
| SIA875 | Singapore Airlines | 5 | 2026-05-13 |
| SIA387 | - | 5 | 2026-04-13 |
| SIA352 | Singapore Airlines | 5 | 2026-06-04 |
| SIA351 | Singapore Airlines | 5 | 2026-06-05 |
| SIA302 | Singapore Airlines | 5 | 2026-07-07 |
| SIA301 | - | 5 | 2026-07-08 |
| SIA247 | Singapore Airlines | 5 | 2026-05-25 |
| SIA959 | - | 4 | 2026-07-12 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 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 |
| 2026-07-02 | SIA28 | - | Jul 2, 04:15 UTC | Jul 2, 14:50 UTC | 10h 35m |
| 2026-07-01 | SIA37 | LAX → SIN | Jul 1, 07:25 UTC | Jul 1, 22:05 UTC | 14h 40m |
| 2026-06-30 | SIA38 | SIN → LAX | Jun 30, 16:15 UTC | Jul 1, 04:25 UTC | 12h 10m |
| 2026-06-29 | SIA37 | LAX → SIN | Jun 29, 07:40 UTC | Jun 29, 22:00 UTC | 14h 20m |
| 2026-06-28 | SIA38 | SIN → LAX | Jun 28, 16:19 UTC | Jun 29, 04:09 UTC | 11h 50m |
| 2026-06-27 | SIA31 | - | Jun 27, 19:19 UTC | Jun 28, 09:05 UTC | 13h 45m |
| 2026-06-27 | SIA32 | - | Jun 27, 03:15 UTC | Jun 27, 16:44 UTC | 13h 30m |
| 2026-06-26 | SIA431 | - | Jun 26, 02:34 UTC | Jun 26, 12:44 UTC | 10h 10m |
| 2026-06-25 | SIA303 | - | Jun 25, 10:30 UTC | Jun 25, 22:14 UTC | 11h 45m |
| 2026-06-24 | SIA304 | - | Jun 24, 16:19 UTC | Jun 25, 05:15 UTC | 12h 55m |
| 2026-06-24 | SIA431 | - | Jun 24, 02:30 UTC | Jun 24, 12:34 UTC | 10h 5m |
| 2026-06-23 | SIA301 | - | Jun 23, 09:59 UTC | Jun 23, 22:19 UTC | 12h 20m |
| 2026-06-22 | SIA302 | SIN → MAN | Jun 22, 18:35 UTC | Jun 23, 08:04 UTC | 13h 30m |
| 2026-06-20 | SIA31 | - | Jun 20, 19:19 UTC | Jun 21, 11:24 UTC | 16h 5m |
| 2026-06-20 | SIA32 | - | Jun 20, 04:34 UTC | Jun 20, 16:14 UTC | 11h 40m |
| 2026-06-19 | SIA323 | - | Jun 19, 08:40 UTC | Jun 19, 20:49 UTC | 12h 10m |
| 2026-06-18 | SIA324 | - | Jun 18, 16:30 UTC | Jun 19, 05:19 UTC | 12h 49m |
| 2026-06-17 | SIA301 | - | Jun 17, 10:10 UTC | Jun 17, 22:20 UTC | 12h 10m |
| 2026-06-16 | SIA302 | SIN → MAN | Jun 16, 18:35 UTC | Jun 17, 08:10 UTC | 13h 36m |
| 2026-06-16 | SIA242 | - | Jun 16, 08:20 UTC | Jun 16, 08:49 UTC | 30m |
| 2026-06-15 | SIA241 | - | Jun 15, 23:39 UTC | Jun 16, 06:10 UTC | 6h 30m |
| 2026-06-15 | SIA323 | - | Jun 15, 09:05 UTC | Jun 15, 20:40 UTC | 11h 35m |
| 2026-06-14 | SIA324 | - | Jun 14, 16:55 UTC | Jun 14, 22:10 UTC | 5h 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-SMY page for operator, model, and routing details .