sensors Mode-S transponder
76CD74
ICAO 24-bit transponder address · allocated to Singapore
Currently assigned to 9V-SKT · AIRBUS A-380-800
- Hex
- 76CD74
- Octal
- 35546564
- Decimal
- 7,785,844
- Country
- SG
- Tail
- 9V-SKT
- Type
- A388
- Flights observed
- 88
- Distinct callsigns
- 18
- Country
- SG
- Last broadcast
- 5h ago
Last known position
Country allocation
The ICAO 24-bit address 76CD74 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SIA308 | Singapore Airlines | 9 | 2026-05-29 |
| SIA319 | Singapore Airlines | 8 | 2026-05-29 |
| SIA424 | Singapore Airlines | 7 | 2026-05-28 |
| SIA237 | Singapore Airlines | 7 | 2026-05-01 |
| SIA423 | Singapore Airlines | 6 | 2026-05-28 |
| SIA232 | Singapore Airlines | 6 | 2026-05-28 |
| SIA406 | Singapore Airlines | 5 | 2026-05-17 |
| SIA403 | Singapore Airlines | 5 | 2026-05-17 |
| SIA326 | Singapore Airlines | 5 | 2026-05-14 |
| SIA231 | Singapore Airlines | 5 | 2026-05-02 |
| SIA228 | Singapore Airlines | 5 | 2026-05-02 |
| SIA221 | Singapore Airlines | 5 | 2026-05-27 |
| SIA222 | Singapore Airlines | 4 | 2026-05-03 |
| SIA325 | Singapore Airlines | 3 | 2026-05-14 |
| SIA322 | Singapore Airlines | 3 | 2026-05-22 |
| SIA317 | Singapore Airlines | 3 | 2026-05-23 |
| SIA9325 | - | 1 | 2026-04-19 |
| SIA830 | Singapore Airlines | 1 | 2026-05-05 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | SIA319 | LHR → SIN | May 29, 20:20 UTC | May 30, 04:00 UTC | 7h 40m |
| 2026-05-29 | SIA308 | SIN → LHR | May 29, 01:40 UTC | May 29, 15:10 UTC | 13h 30m |
| 2026-05-28 | SIA423 | BOM → SIN | May 28, 19:35 UTC | May 28, 23:25 UTC | 3h 50m |
| 2026-05-28 | SIA423 | BOM → SIN | May 28, 18:35 UTC | May 28, 18:45 UTC | 10m |
| 2026-05-28 | SIA424 | SIN → BOM | May 28, 15:50 UTC | May 28, 16:15 UTC | 25m |
| 2026-05-28 | SIA424 | SIN → BOM | May 28, 11:30 UTC | May 28, 12:05 UTC | 35m |
| 2026-05-28 | SIA232 | SYD → SIN | May 28, 01:20 UTC | May 28, 01:50 UTC | 30m |
| 2026-05-27 | SIA221 | SIN → SYD | May 27, 12:50 UTC | May 27, 20:05 UTC | 7h 15m |
| 2026-05-26 | SIA319 | LHR → SIN | May 26, 20:24 UTC | May 27, 08:25 UTC | 12h 1m |
| 2026-05-26 | SIA308 | SIN → LHR | May 26, 01:34 UTC | May 26, 14:45 UTC | 13h 10m |
| 2026-05-24 | SIA319 | LHR → SIN | May 24, 20:10 UTC | May 25, 08:25 UTC | 12h 15m |
| 2026-05-24 | SIA308 | SIN → LHR | May 24, 01:20 UTC | May 24, 14:35 UTC | 13h 15m |
| 2026-05-23 | SIA317 | LHR → SIN | May 23, 10:45 UTC | May 23, 23:05 UTC | 12h 20m |
| 2026-05-22 | SIA322 | SIN → LHR | May 22, 16:00 UTC | May 23, 04:55 UTC | 12h 55m |
| 2026-05-21 | SIA319 | LHR → SIN | May 21, 20:00 UTC | May 22, 08:25 UTC | 12h 25m |
| 2026-05-21 | SIA308 | SIN → LHR | May 21, 01:55 UTC | May 21, 14:55 UTC | 13h 0m |
| 2026-05-20 | SIA317 | LHR → SIN | May 20, 10:40 UTC | May 20, 23:05 UTC | 12h 25m |
| 2026-05-19 | SIA322 | SIN → LHR | May 19, 15:25 UTC | May 20, 04:20 UTC | 12h 55m |
| 2026-05-18 | SIA319 | LHR → SIN | May 18, 19:50 UTC | May 19, 08:05 UTC | 12h 15m |
| 2026-05-18 | SIA308 | SIN → LHR | May 18, 01:40 UTC | May 18, 14:30 UTC | 12h 50m |
| 2026-05-17 | SIA403 | DEL → SIN | May 17, 16:40 UTC | May 17, 21:25 UTC | 4h 45m |
| 2026-05-17 | SIA406 | SIN → DEL | May 17, 09:15 UTC | May 17, 14:30 UTC | 5h 15m |
| 2026-05-16 | SIA403 | DEL → SIN | May 16, 16:35 UTC | May 16, 21:10 UTC | 4h 35m |
| 2026-05-16 | SIA406 | SIN → DEL | May 16, 09:10 UTC | May 16, 14:16 UTC | 5h 5m |
| 2026-05-14 | SIA325 | FRA → SIN | May 14, 20:00 UTC | May 15, 07:45 UTC | 11h 45m |
| 2026-05-14 | SIA326 | SIN → FRA | May 14, 05:00 UTC | May 14, 17:25 UTC | 12h 25m |
| 2026-05-13 | SIA423 | BOM → SIN | May 13, 11:35 UTC | May 13, 23:25 UTC | 11h 50m |
| 2026-05-13 | SIA232 | SYD → SIN | May 13, 01:20 UTC | May 13, 01:55 UTC | 35m |
| 2026-05-12 | SIA221 | SIN → SYD | May 12, 19:20 UTC | May 12, 20:10 UTC | 50m |
| 2026-05-11 | SIA325 | FRA → SIN | May 11, 20:10 UTC | May 12, 07:35 UTC | 11h 25m |
| 2026-05-11 | SIA326 | SIN → FRA | May 11, 05:15 UTC | May 11, 17:40 UTC | 12h 25m |
| 2026-05-10 | SIA424 | SIN → BOM | May 10, 11:25 UTC | May 10, 22:55 UTC | 11h 30m |
| 2026-05-09 | SIA325 | FRA → SIN | May 9, 20:10 UTC | May 10, 07:19 UTC | 11h 10m |
| 2026-05-09 | SIA326 | SIN → FRA | May 9, 09:00 UTC | May 9, 18:00 UTC | 9h 0m |
| 2026-05-09 | SIA326 | SIN → FRA | May 9, 05:25 UTC | May 9, 08:50 UTC | 3h 25m |
| 2026-05-08 | SIA423 | BOM → SIN | May 8, 21:00 UTC | May 9, 00:20 UTC | 3h 20m |
| 2026-05-08 | SIA424 | SIN → BOM | May 8, 17:20 UTC | May 8, 17:40 UTC | 20m |
| 2026-05-08 | SIA424 | SIN → BOM | May 8, 12:10 UTC | May 8, 15:45 UTC | 3h 35m |
| 2026-05-07 | SIA319 | LHR → SIN | May 7, 19:50 UTC | May 8, 07:59 UTC | 12h 10m |
| 2026-05-07 | SIA308 | SIN → LHR | May 7, 01:35 UTC | May 7, 15:05 UTC | 13h 30m |
| 2026-05-06 | SIA403 | DEL → SIN | May 6, 17:00 UTC | May 6, 21:40 UTC | 4h 39m |
| 2026-05-06 | SIA406 | SIN → DEL | May 6, 09:45 UTC | May 6, 14:45 UTC | 5h 0m |
| 2026-05-05 | SIA830 | SIN → PVG | May 5, 02:15 UTC | May 5, 13:50 UTC | 11h 35m |
| 2026-05-04 | SIA317 | LHR → SIN | May 4, 10:45 UTC | May 4, 22:50 UTC | 12h 6m |
| 2026-05-03 | SIA322 | SIN → LHR | May 3, 15:40 UTC | May 4, 04:34 UTC | 12h 55m |
| 2026-05-03 | SIA222 | SYD → SIN | May 3, 05:10 UTC | May 3, 05:50 UTC | 40m |
| 2026-05-02 | SIA231 | SIN → SYD | May 2, 23:20 UTC | May 2, 23:55 UTC | 35m |
| 2026-05-02 | SIA228 | MEL → SIN | May 2, 13:30 UTC | May 2, 13:40 UTC | 10m |
| 2026-05-02 | SIA228 | MEL → SIN | May 2, 05:55 UTC | May 2, 07:10 UTC | 1h 15m |
| 2026-05-01 | SIA237 | SIN → MEL | May 1, 18:30 UTC | May 2, 00:25 UTC | 5h 55m |
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-SKT page for operator, model, and routing details .