sensors Mode-S transponder
76CD72
ICAO 24-bit transponder address · allocated to Singapore
Currently assigned to 9V-SKR · AIRBUS A-380-800
- Hex
- 76CD72
- Octal
- 35546562
- Decimal
- 7,785,842
- Country
- SG
- Tail
- 9V-SKR
- Type
- A388
- Flights observed
- 84
- Distinct callsigns
- 19
- Country
- SG
- Last broadcast
- 1h ago
Current position
Country allocation
The ICAO 24-bit address 76CD72 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 19 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SIA232 | Singapore Airlines | 11 | 2026-05-16 |
| SIA222 | Singapore Airlines | 9 | 2026-05-10 |
| SIA325 | Singapore Airlines | 8 | 2026-05-29 |
| SIA231 | Singapore Airlines | 8 | 2026-05-10 |
| SIA326 | Singapore Airlines | 6 | 2026-05-29 |
| SIA221 | Singapore Airlines | 6 | 2026-05-15 |
| SIA237 | Singapore Airlines | 5 | 2026-04-20 |
| SIA228 | Singapore Airlines | 5 | 2026-05-25 |
| SIA406 | Singapore Airlines | 4 | 2026-05-28 |
| SIA403 | Singapore Airlines | 4 | 2026-05-28 |
| SIA322 | Singapore Airlines | 4 | 2026-05-25 |
| SIA317 | Singapore Airlines | 4 | 2026-05-26 |
| SIA424 | Singapore Airlines | 2 | 2026-05-16 |
| SIA319 | Singapore Airlines | 2 | 2026-05-23 |
| SIA308 | Singapore Airlines | 2 | 2026-05-23 |
| SIA9325 | - | 1 | 2026-04-22 |
| SIA833 | Singapore Airlines | 1 | 2026-05-04 |
| SIA830 | Singapore Airlines | 1 | 2026-05-21 |
| SIA423 | Singapore Airlines | 1 | 2026-05-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | SIA325 | FRA → SIN | May 29, 20:20 UTC | May 29, 22:30 UTC | 2h 10m |
| 2026-05-29 | SIA326 | SIN → FRA | May 29, 05:20 UTC | May 29, 18:00 UTC | 12h 40m |
| 2026-05-28 | SIA403 | DEL → SIN | May 28, 17:30 UTC | May 28, 22:10 UTC | 4h 40m |
| 2026-05-28 | SIA406 | SIN → DEL | May 28, 09:45 UTC | May 28, 15:00 UTC | 5h 15m |
| 2026-05-27 | SIA325 | FRA → SIN | May 27, 20:00 UTC | May 28, 07:25 UTC | 11h 25m |
| 2026-05-27 | SIA326 | SIN → FRA | May 27, 04:59 UTC | May 27, 17:50 UTC | 12h 50m |
| 2026-05-26 | SIA317 | LHR → SIN | May 26, 10:44 UTC | May 26, 23:10 UTC | 12h 25m |
| 2026-05-25 | SIA322 | SIN → LHR | May 25, 15:45 UTC | May 26, 05:00 UTC | 13h 14m |
| 2026-05-25 | SIA228 | MEL → SIN | May 25, 12:35 UTC | May 25, 12:45 UTC | 10m |
| 2026-05-25 | SIA228 | MEL → SIN | May 25, 05:45 UTC | May 25, 06:55 UTC | 1h 10m |
| 2026-05-23 | SIA319 | LHR → SIN | May 23, 19:55 UTC | May 24, 08:40 UTC | 12h 45m |
| 2026-05-23 | SIA308 | SIN → LHR | May 23, 01:30 UTC | May 23, 14:30 UTC | 13h 0m |
| 2026-05-22 | SIA403 | DEL → SIN | May 22, 17:10 UTC | May 22, 22:05 UTC | 4h 55m |
| 2026-05-22 | SIA406 | SIN → DEL | May 22, 09:15 UTC | May 22, 14:15 UTC | 5h 0m |
| 2026-05-21 | SIA830 | SIN → PVG | May 21, 02:30 UTC | May 21, 10:25 UTC | 7h 55m |
| 2026-05-20 | SIA403 | DEL → SIN | May 20, 16:55 UTC | May 20, 21:45 UTC | 4h 50m |
| 2026-05-20 | SIA406 | SIN → DEL | May 20, 09:10 UTC | May 20, 14:10 UTC | 5h 0m |
| 2026-05-19 | SIA317 | LHR → SIN | May 19, 15:15 UTC | May 20, 03:35 UTC | 12h 20m |
| 2026-05-18 | SIA322 | SIN → LHR | May 18, 15:35 UTC | May 19, 04:30 UTC | 12h 54m |
| 2026-05-17 | SIA325 | FRA → SIN | May 17, 19:55 UTC | May 18, 08:20 UTC | 12h 25m |
| 2026-05-17 | SIA326 | SIN → FRA | May 17, 05:20 UTC | May 17, 17:30 UTC | 12h 10m |
| 2026-05-16 | SIA423 | BOM → SIN | May 16, 22:45 UTC | May 16, 23:35 UTC | 50m |
| 2026-05-16 | SIA424 | SIN → BOM | May 16, 15:50 UTC | May 16, 16:10 UTC | 20m |
| 2026-05-16 | SIA424 | SIN → BOM | May 16, 11:41 UTC | May 16, 12:21 UTC | 40m |
| 2026-05-16 | SIA232 | SYD → SIN | May 16, 01:35 UTC | May 16, 09:31 UTC | 7h 56m |
| 2026-05-15 | SIA221 | SIN → SYD | May 15, 19:25 UTC | May 15, 20:05 UTC | 40m |
| 2026-05-15 | SIA232 | SYD → SIN | May 15, 01:20 UTC | May 15, 01:55 UTC | 35m |
| 2026-05-14 | SIA221 | SIN → SYD | May 14, 19:20 UTC | May 14, 20:05 UTC | 45m |
| 2026-05-14 | SIA232 | SYD → SIN | May 14, 01:30 UTC | May 14, 02:00 UTC | 30m |
| 2026-05-13 | SIA221 | SIN → SYD | May 13, 19:15 UTC | May 13, 20:10 UTC | 55m |
| 2026-05-12 | SIA319 | LHR → SIN | May 12, 19:55 UTC | May 13, 07:50 UTC | 11h 55m |
| 2026-05-12 | SIA308 | SIN → LHR | May 12, 04:50 UTC | May 12, 15:01 UTC | 10h 10m |
| 2026-05-11 | SIA403 | DEL → SIN | May 11, 16:45 UTC | May 11, 21:21 UTC | 4h 36m |
| 2026-05-11 | SIA406 | SIN → DEL | May 11, 09:30 UTC | May 11, 14:35 UTC | 5h 5m |
| 2026-05-10 | SIA222 | SYD → SIN | May 10, 05:20 UTC | May 10, 05:55 UTC | 35m |
| 2026-05-10 | SIA231 | SIN → SYD | May 10, 02:34 UTC | May 10, 03:14 UTC | 40m |
| 2026-05-09 | SIA232 | SYD → SIN | May 9, 01:50 UTC | May 9, 02:25 UTC | 35m |
| 2026-05-08 | SIA232 | SYD → SIN | May 8, 02:39 UTC | May 8, 20:25 UTC | 17h 45m |
| 2026-05-07 | SIA232 | SYD → SIN | May 7, 01:30 UTC | May 7, 20:15 UTC | 18h 45m |
| 2026-05-06 | SIA222 | SYD → SIN | May 6, 05:10 UTC | May 6, 22:35 UTC | 17h 24m |
| 2026-05-05 | SIA222 | SYD → SIN | May 5, 05:20 UTC | May 6, 00:01 UTC | 18h 40m |
| 2026-05-04 | SIA231 | SIN → SYD | May 4, 23:25 UTC | May 5, 00:00 UTC | 35m |
| 2026-05-04 | SIA833 | PVG → SIN | May 4, 02:00 UTC | May 4, 13:50 UTC | 11h 50m |
| 2026-05-03 | SIA317 | LHR → SIN | May 3, 10:25 UTC | May 3, 22:49 UTC | 12h 25m |
| 2026-05-02 | SIA322 | SIN → LHR | May 2, 15:35 UTC | May 3, 04:35 UTC | 12h 59m |
| 2026-05-02 | SIA222 | SYD → SIN | May 2, 05:15 UTC | May 2, 05:55 UTC | 40m |
| 2026-05-01 | SIA231 | SIN → SYD | May 1, 18:25 UTC | May 2, 00:00 UTC | 5h 35m |
| 2026-04-30 | SIA232 | SYD → SIN | Apr 30, 08:50 UTC | Apr 30, 09:00 UTC | 10m |
| 2026-04-30 | SIA232 | SYD → SIN | Apr 30, 01:20 UTC | Apr 30, 01:50 UTC | 30m |
| 2026-04-29 | SIA221 | SIN → SYD | Apr 29, 19:15 UTC | Apr 29, 20:10 UTC | 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-SKR page for operator, model, and routing details .