sensors Mode-S transponder
76CD6D
ICAO 24-bit transponder address · allocated to Singapore
Currently assigned to 9V-SKM · AIRBUS A-380-800
- Hex
- 76CD6D
- Octal
- 35546555
- Decimal
- 7,785,837
- Country
- SG
- Tail
- 9V-SKM
- Type
- A388
- Flights observed
- 92
- Distinct callsigns
- 18
- Country
- SG
- Last broadcast
- 59m ago
Last known position
Country allocation
The ICAO 24-bit address 76CD6D 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 |
|---|---|---|---|
| SIA237 | Singapore Airlines | 12 | 2026-05-27 |
| SIA228 | Singapore Airlines | 11 | 2026-05-28 |
| SIA231 | Singapore Airlines | 10 | 2026-05-29 |
| SIA222 | Singapore Airlines | 10 | 2026-05-30 |
| SIA317 | Singapore Airlines | 7 | 2026-05-21 |
| SIA322 | Singapore Airlines | 6 | 2026-05-20 |
| SIA221 | Singapore Airlines | 6 | 2026-05-10 |
| SIA406 | Singapore Airlines | 5 | 2026-05-24 |
| SIA424 | Singapore Airlines | 4 | 2026-05-07 |
| SIA423 | Singapore Airlines | 4 | 2026-05-03 |
| SIA403 | Singapore Airlines | 4 | 2026-05-24 |
| SIA833 | Singapore Airlines | 2 | 2026-05-25 |
| SIA326 | Singapore Airlines | 2 | 2026-05-13 |
| SIA325 | Singapore Airlines | 2 | 2026-05-13 |
| SIA319 | Singapore Airlines | 2 | 2026-05-02 |
| SIA308 | Singapore Airlines | 2 | 2026-05-02 |
| SIA232 | Singapore Airlines | 2 | 2026-04-15 |
| SIA830 | Singapore Airlines | 1 | 2026-05-25 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | SIA222 | SYD → SIN | May 30, 05:00 UTC | May 30, 05:15 UTC | 15m |
| 2026-05-29 | SIA231 | SIN → SYD | May 29, 17:05 UTC | May 29, 23:50 UTC | 6h 45m |
| 2026-05-29 | SIA222 | SYD → SIN | May 29, 05:25 UTC | May 29, 06:00 UTC | 35m |
| 2026-05-28 | SIA231 | SIN → SYD | May 28, 17:05 UTC | May 29, 00:05 UTC | 7h 0m |
| 2026-05-28 | SIA228 | MEL → SIN | May 28, 05:50 UTC | May 28, 07:00 UTC | 1h 10m |
| 2026-05-27 | SIA237 | SIN → MEL | May 27, 18:15 UTC | May 28, 01:05 UTC | 6h 50m |
| 2026-05-27 | SIA228 | MEL → SIN | May 27, 05:40 UTC | May 27, 06:49 UTC | 1h 10m |
| 2026-05-26 | SIA237 | SIN → MEL | May 26, 18:34 UTC | May 27, 01:09 UTC | 6h 35m |
| 2026-05-26 | SIA222 | SYD → SIN | May 26, 05:05 UTC | May 26, 05:45 UTC | 40m |
| 2026-05-25 | SIA231 | SIN → SYD | May 25, 23:40 UTC | May 26, 00:19 UTC | 40m |
| 2026-05-25 | SIA833 | PVG → SIN | May 25, 13:35 UTC | May 25, 14:00 UTC | 25m |
| 2026-05-25 | SIA830 | SIN → PVG | May 25, 02:15 UTC | May 25, 10:10 UTC | 7h 55m |
| 2026-05-24 | SIA403 | DEL → SIN | May 24, 17:10 UTC | May 24, 21:45 UTC | 4h 35m |
| 2026-05-24 | SIA406 | SIN → DEL | May 24, 09:50 UTC | May 24, 14:50 UTC | 5h 0m |
| 2026-05-21 | SIA317 | LHR → SIN | May 21, 10:40 UTC | May 21, 23:25 UTC | 12h 45m |
| 2026-05-20 | SIA322 | SIN → LHR | May 20, 15:40 UTC | May 21, 04:15 UTC | 12h 35m |
| 2026-05-20 | SIA228 | MEL → SIN | May 20, 06:00 UTC | May 20, 07:05 UTC | 1h 5m |
| 2026-05-19 | SIA237 | SIN → MEL | May 19, 18:00 UTC | May 20, 00:40 UTC | 6h 40m |
| 2026-05-19 | SIA228 | MEL → SIN | May 19, 05:40 UTC | May 19, 06:50 UTC | 1h 10m |
| 2026-05-18 | SIA237 | SIN → MEL | May 18, 23:35 UTC | May 19, 00:40 UTC | 1h 5m |
| 2026-05-18 | SIA228 | MEL → SIN | May 18, 05:35 UTC | May 18, 12:50 UTC | 7h 15m |
| 2026-05-17 | SIA237 | SIN → MEL | May 17, 23:35 UTC | May 18, 00:40 UTC | 1h 5m |
| 2026-05-17 | SIA228 | MEL → SIN | May 17, 05:50 UTC | May 17, 07:05 UTC | 1h 15m |
| 2026-05-16 | SIA237 | SIN → MEL | May 16, 18:10 UTC | May 17, 00:40 UTC | 6h 30m |
| 2026-05-16 | SIA228 | MEL → SIN | May 16, 05:40 UTC | May 16, 06:50 UTC | 1h 11m |
| 2026-05-15 | SIA237 | SIN → MEL | May 15, 18:15 UTC | May 16, 00:55 UTC | 6h 40m |
| 2026-05-15 | SIA222 | SYD → SIN | May 15, 05:15 UTC | May 15, 05:55 UTC | 40m |
| 2026-05-14 | SIA231 | SIN → SYD | May 14, 18:10 UTC | May 15, 00:30 UTC | 6h 20m |
| 2026-05-13 | SIA325 | FRA → SIN | May 13, 20:25 UTC | May 14, 07:30 UTC | 11h 5m |
| 2026-05-13 | SIA326 | SIN → FRA | May 13, 05:55 UTC | May 13, 18:20 UTC | 12h 25m |
| 2026-05-12 | SIA403 | DEL → SIN | May 12, 16:45 UTC | May 12, 21:30 UTC | 4h 45m |
| 2026-05-12 | SIA406 | SIN → DEL | May 12, 09:25 UTC | May 12, 14:35 UTC | 5h 10m |
| 2026-05-11 | SIA222 | SYD → SIN | May 11, 10:10 UTC | May 11, 10:45 UTC | 35m |
| 2026-05-10 | SIA221 | SIN → SYD | May 10, 01:20 UTC | May 10, 20:14 UTC | 18h 55m |
| 2026-05-09 | SIA221 | SIN → SYD | May 9, 19:14 UTC | May 9, 19:49 UTC | 35m |
| 2026-05-08 | SIA833 | PVG → SIN | May 8, 02:09 UTC | May 8, 11:09 UTC | 9h 0m |
| 2026-05-07 | SIA424 | SIN → BOM | May 7, 11:35 UTC | May 7, 23:09 UTC | 11h 34m |
| 2026-05-06 | SIA325 | FRA → SIN | May 6, 20:05 UTC | May 7, 07:20 UTC | 11h 15m |
| 2026-05-06 | SIA326 | SIN → FRA | May 6, 05:25 UTC | May 6, 17:50 UTC | 12h 24m |
| 2026-05-03 | SIA423 | BOM → SIN | May 3, 22:25 UTC | May 3, 23:15 UTC | 50m |
| 2026-05-03 | SIA423 | BOM → SIN | May 3, 18:30 UTC | May 3, 18:45 UTC | 15m |
| 2026-05-03 | SIA424 | SIN → BOM | May 3, 11:20 UTC | May 3, 16:00 UTC | 4h 40m |
| 2026-05-02 | SIA319 | LHR → SIN | May 2, 19:50 UTC | May 3, 08:10 UTC | 12h 19m |
| 2026-05-02 | SIA308 | SIN → LHR | May 2, 01:30 UTC | May 2, 14:45 UTC | 13h 15m |
| 2026-05-01 | SIA403 | DEL → SIN | May 1, 16:55 UTC | May 1, 21:45 UTC | 4h 50m |
| 2026-05-01 | SIA406 | SIN → DEL | May 1, 09:40 UTC | May 1, 14:45 UTC | 5h 5m |
| 2026-04-30 | SIA228 | MEL → SIN | Apr 30, 05:40 UTC | Apr 30, 06:50 UTC | 1h 10m |
| 2026-04-29 | SIA237 | SIN → MEL | Apr 29, 19:15 UTC | Apr 30, 00:50 UTC | 5h 34m |
| 2026-04-29 | SIA222 | SYD → SIN | Apr 29, 05:20 UTC | Apr 29, 05:55 UTC | 35m |
| 2026-04-28 | SIA231 | SIN → SYD | Apr 28, 23:25 UTC | Apr 29, 00:00 UTC | 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-SKM page for operator, model, and routing details .