sensors Mode-S transponder
76CD41
ICAO 24-bit transponder address · allocated to Singapore
Currently assigned to 9V-SJA · AIRBUS A-350-900
- Hex
- 76CD41
- Octal
- 35546501
- Decimal
- 7,785,793
- Country
- SG
- Tail
- 9V-SJA
- Type
- A359
- Flights observed
- 229
- Distinct callsigns
- 20
- Country
- SG
- Last broadcast
- Jul 26, 21:40 UTC
Last known position
Country allocation
The ICAO 24-bit address 76CD41 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 | - | 14 | 2026-07-09 |
| SIA27 | Singapore Airlines | 14 | 2026-07-25 |
| SIA31 | - | 12 | 2026-07-10 |
| SIA28 | Singapore Airlines | 11 | 2026-07-25 |
| SIA479 | - | 10 | 2026-07-04 |
| SIA38 | - | 9 | 2026-07-19 |
| SIA351 | - | 9 | 2026-07-13 |
| SIA328 | Singapore Airlines | 9 | 2026-05-12 |
| SIA323 | - | 9 | 2026-06-26 |
| SIA478 | - | 8 | 2026-07-04 |
| SIA37 | - | 8 | 2026-07-20 |
| SIA324 | - | 8 | 2026-06-25 |
| SIA298 | Singapore Airlines | 8 | 2026-07-23 |
| SIA378 | Singapore Airlines | 7 | 2026-06-04 |
| SIA297 | Singapore Airlines | 7 | 2026-07-22 |
| SIA248 | - | 7 | 2026-07-06 |
| SIA377 | Singapore Airlines | 6 | 2026-06-04 |
| SIA352 | Singapore Airlines | 6 | 2026-07-26 |
| SIA247 | - | 6 | 2026-07-06 |
| SIA895 | - | 4 | 2026-06-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | SIA352 | SIN → CPH | Jul 26, 16:30 UTC | Jul 26, 21:40 UTC | 5h 10m |
| 2026-07-25 | SIA27 | SEA → SIN | Jul 25, 18:55 UTC | Jul 26, 08:40 UTC | 13h 46m |
| 2026-07-25 | SIA28 | SIN → SEA | Jul 25, 03:45 UTC | Jul 25, 16:55 UTC | 13h 10m |
| 2026-07-24 | SIA387 | BCN → SIN | Jul 24, 09:55 UTC | Jul 24, 22:05 UTC | 12h 10m |
| 2026-07-23 | SIA388 | SIN → BCN | Jul 23, 16:00 UTC | Jul 24, 05:35 UTC | 13h 35m |
| 2026-07-23 | SIA298 | CHC → SIN | Jul 23, 01:30 UTC | Jul 23, 02:40 UTC | 1h 10m |
| 2026-07-22 | SIA298 | CHC → SIN | Jul 22, 22:55 UTC | Jul 22, 23:10 UTC | 15m |
| 2026-07-22 | SIA297 | SIN → CHC | Jul 22, 20:30 UTC | Jul 22, 20:45 UTC | 15m |
| 2026-07-22 | SIA27 | SEA → SIN | Jul 22, 02:45 UTC | Jul 22, 19:00 UTC | 16h 15m |
| 2026-07-21 | SIA27 | SEA → SIN | Jul 21, 18:20 UTC | Jul 22, 18:15 UTC | 23h 55m |
| 2026-07-21 | SIA27 | SEA → SIN | Jul 21, 18:10 UTC | Jul 22, 12:50 UTC | 18h 40m |
| 2026-07-20 | SIA28 | SIN → SEA | Jul 20, 20:20 UTC | Jul 21, 15:55 UTC | 19h 35m |
| 2026-07-20 | SIA28 | SIN → SEA | Jul 20, 08:20 UTC | Jul 21, 08:00 UTC | 23h 40m |
| 2026-07-20 | SIA37 | - | Jul 20, 07:40 UTC | Jul 21, 06:05 UTC | 22h 24m |
| 2026-07-19 | SIA38 | - | Jul 19, 16:25 UTC | Jul 20, 05:20 UTC | 12h 55m |
| 2026-07-19 | SIA27 | SEA → SIN | Jul 19, 09:50 UTC | Jul 19, 10:05 UTC | 15m |
| 2026-07-18 | SIA27 | SEA → SIN | Jul 18, 18:40 UTC | Jul 19, 08:25 UTC | 13h 45m |
| 2026-07-18 | SIA28 | SIN → SEA | Jul 18, 02:50 UTC | Jul 18, 16:10 UTC | 13h 20m |
| 2026-07-16 | SIA27 | SEA → SIN | Jul 16, 20:45 UTC | Jul 17, 11:20 UTC | 14h 35m |
| 2026-07-16 | SIA28 | - | Jul 16, 04:25 UTC | Jul 16, 16:30 UTC | 12h 5m |
| 2026-07-15 | SIA37 | - | Jul 15, 07:25 UTC | Jul 15, 21:50 UTC | 14h 25m |
| 2026-07-14 | SIA38 | - | Jul 14, 14:50 UTC | Jul 15, 05:10 UTC | 14h 19m |
| 2026-07-14 | SIA183 | - | Jul 14, 10:20 UTC | Jul 14, 10:50 UTC | 30m |
| 2026-07-14 | SIA184 | - | Jul 14, 05:45 UTC | Jul 14, 06:15 UTC | 30m |
| 2026-07-13 | SIA351 | - | Jul 13, 10:10 UTC | Jul 13, 21:35 UTC | 11h 25m |
| 2026-07-12 | SIA352 | - | Jul 12, 16:40 UTC | Jul 13, 04:50 UTC | 12h 10m |
| 2026-07-12 | SIA431 | - | Jul 12, 02:30 UTC | Jul 12, 12:50 UTC | 10h 20m |
| 2026-07-11 | SIA351 | - | Jul 11, 10:15 UTC | Jul 11, 21:55 UTC | 11h 40m |
| 2026-07-10 | SIA352 | - | Jul 10, 16:35 UTC | Jul 11, 05:05 UTC | 12h 31m |
| 2026-07-10 | SIA31 | - | Jul 10, 11:05 UTC | Jul 10, 11:15 UTC | 10m |
| 2026-07-09 | SIA31 | - | Jul 9, 19:25 UTC | Jul 10, 09:45 UTC | 14h 20m |
| 2026-07-09 | SIA32 | - | Jul 9, 04:45 UTC | Jul 9, 16:25 UTC | 11h 40m |
| 2026-07-08 | SIA37 | - | Jul 8, 07:35 UTC | Jul 8, 22:15 UTC | 14h 40m |
| 2026-07-07 | SIA38 | SIN → LAX | Jul 7, 16:30 UTC | Jul 8, 04:45 UTC | 12h 15m |
| 2026-07-07 | SIA38 | SIN → LAX | Jul 7, 02:10 UTC | Jul 7, 19:50 UTC | 17h 40m |
| 2026-07-06 | SIA248 | - | Jul 6, 20:20 UTC | Jul 7, 19:50 UTC | 23h 30m |
| 2026-07-06 | SIA248 | - | Jul 6, 20:00 UTC | Jul 7, 17:45 UTC | 21h 45m |
| 2026-07-06 | SIA247 | - | Jul 6, 11:40 UTC | Jul 6, 18:10 UTC | 6h 30m |
| 2026-07-06 | SIA27 | SEA → SIN | Jul 6, 09:15 UTC | Jul 6, 09:25 UTC | 10m |
| 2026-07-05 | SIA27 | SEA → SIN | Jul 5, 18:10 UTC | Jul 6, 07:45 UTC | 13h 35m |
| 2026-07-05 | SIA28 | - | Jul 5, 04:25 UTC | Jul 5, 15:25 UTC | 11h 0m |
| 2026-07-04 | SIA479 | - | Jul 4, 12:10 UTC | Jul 4, 21:50 UTC | 9h 40m |
| 2026-07-04 | SIA479 | - | Jul 4, 09:15 UTC | Jul 4, 10:45 UTC | 1h 30m |
| 2026-07-04 | SIA478 | - | Jul 4, 05:40 UTC | Jul 4, 07:35 UTC | 1h 55m |
| 2026-07-03 | SIA478 | - | Jul 3, 18:00 UTC | Jul 4, 04:15 UTC | 10h 15m |
| 2026-07-03 | SIA431 | - | Jul 3, 02:45 UTC | Jul 3, 12:50 UTC | 10h 5m |
| 2026-07-02 | SIA309 | - | Jul 2, 09:20 UTC | Jul 2, 21:45 UTC | 12h 25m |
| 2026-07-01 | SIA312 | - | Jul 1, 16:30 UTC | Jul 2, 05:35 UTC | 13h 5m |
| 2026-06-28 | SIA31 | - | Jun 28, 19:09 UTC | Jun 29, 09:00 UTC | 13h 50m |
| 2026-06-28 | SIA32 | - | Jun 28, 04:35 UTC | Jun 28, 16:00 UTC | 11h 25m |
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-SJA page for operator, model, and routing details .