sensors Mode-S transponder
76CD44
ICAO 24-bit transponder address · allocated to Singapore
Currently assigned to 9V-SJD · AIRBUS A-350-900
- Hex
- 76CD44
- Octal
- 35546504
- Decimal
- 7,785,796
- Country
- SG
- Tail
- 9V-SJD
- Type
- A359
- Flights observed
- 104
- Distinct callsigns
- 20
- Country
- SG
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 76CD44 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 |
|---|---|---|---|
| SIA38 | Singapore Airlines | 18 | 2026-05-08 |
| SIA37 | Singapore Airlines | 15 | 2026-05-09 |
| SIA32 | Singapore Airlines | 10 | 2026-05-13 |
| SIA31 | Singapore Airlines | 7 | 2026-05-13 |
| SIA392 | Singapore Airlines | 6 | 2026-05-27 |
| SIA479 | Singapore Airlines | 4 | 2026-05-29 |
| SIA478 | Singapore Airlines | 4 | 2026-05-29 |
| SIA28 | Singapore Airlines | 4 | 2026-05-06 |
| SIA27 | Singapore Airlines | 4 | 2026-05-08 |
| SIA958 | Singapore Airlines | 3 | 2026-05-17 |
| SIA391 | Singapore Airlines | 3 | 2026-05-27 |
| SIA962 | Singapore Airlines | 2 | 2026-05-21 |
| SIA959 | Singapore Airlines | 2 | 2026-05-17 |
| SIA432 | Singapore Airlines | 2 | 2026-05-26 |
| SIA352 | Singapore Airlines | 2 | 2026-05-14 |
| SIA351 | Singapore Airlines | 2 | 2026-05-15 |
| SIA242 | Singapore Airlines | 2 | 2026-05-24 |
| SIA241 | Singapore Airlines | 2 | 2026-05-24 |
| SIA963 | Singapore Airlines | 1 | 2026-05-21 |
| SIA957 | Singapore Airlines | 1 | 2026-05-21 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | SIA479 | JNB → SIN | May 29, 12:05 UTC | May 29, 21:30 UTC | 9h 26m |
| 2026-05-29 | SIA478 | JNB → CPT | May 29, 05:15 UTC | May 29, 10:40 UTC | 5h 25m |
| 2026-05-28 | SIA478 | JNB → CPT | May 28, 17:40 UTC | May 29, 03:55 UTC | 10h 15m |
| 2026-05-27 | SIA391 | IST → SIN | May 27, 11:25 UTC | May 27, 20:00 UTC | 8h 35m |
| 2026-05-27 | SIA392 | SIN → IST | May 27, 05:04 UTC | May 27, 05:14 UTC | 10m |
| 2026-05-26 | SIA392 | SIN → IST | May 26, 18:45 UTC | May 27, 04:30 UTC | 9h 45m |
| 2026-05-26 | SIA432 | SIN → MLE | May 26, 02:35 UTC | May 26, 12:35 UTC | 10h 0m |
| 2026-05-25 | SIA391 | IST → SIN | May 25, 11:30 UTC | May 25, 20:15 UTC | 8h 44m |
| 2026-05-25 | SIA392 | SIN → IST | May 25, 04:50 UTC | May 25, 05:05 UTC | 15m |
| 2026-05-24 | SIA392 | SIN → IST | May 24, 18:30 UTC | May 25, 04:15 UTC | 9h 45m |
| 2026-05-24 | SIA242 | SYD → SIN | May 24, 08:20 UTC | May 24, 09:00 UTC | 40m |
| 2026-05-24 | SIA241 | SIN → SYD | May 24, 06:05 UTC | May 24, 06:45 UTC | 40m |
| 2026-05-23 | SIA432 | SIN → MLE | May 23, 02:40 UTC | May 23, 12:35 UTC | 9h 55m |
| 2026-05-22 | SIA479 | JNB → SIN | May 22, 12:45 UTC | May 22, 22:30 UTC | 9h 45m |
| 2026-05-22 | SIA479 | JNB → SIN | May 22, 10:45 UTC | May 22, 11:05 UTC | 20m |
| 2026-05-22 | SIA479 | JNB → SIN | May 22, 09:30 UTC | May 22, 09:55 UTC | 25m |
| 2026-05-22 | SIA478 | JNB → CPT | May 22, 05:45 UTC | May 22, 07:35 UTC | 1h 50m |
| 2026-05-21 | SIA478 | JNB → CPT | May 21, 17:40 UTC | May 22, 04:15 UTC | 10h 35m |
| 2026-05-21 | SIA963 | CGK → SIN | May 21, 11:30 UTC | May 21, 12:45 UTC | 1h 15m |
| 2026-05-21 | SIA962 | SIN → CGK | May 21, 09:40 UTC | May 21, 10:00 UTC | 20m |
| 2026-05-21 | SIA962 | SIN → CGK | May 21, 08:40 UTC | May 21, 09:05 UTC | 25m |
| 2026-05-21 | SIA957 | CGK → SIN | May 21, 04:20 UTC | May 21, 05:30 UTC | 1h 10m |
| 2026-05-21 | SIA956 | SIN → CGK | May 21, 01:25 UTC | May 21, 02:45 UTC | 1h 20m |
| 2026-05-20 | SIA301 | MAN → SIN | May 20, 09:45 UTC | May 20, 22:00 UTC | 12h 15m |
| 2026-05-19 | SIA302 | SIN → MAN | May 19, 18:25 UTC | May 20, 07:40 UTC | 13h 16m |
| 2026-05-19 | SIA242 | SYD → SIN | May 19, 08:15 UTC | May 19, 08:50 UTC | 35m |
| 2026-05-19 | SIA241 | SIN → SYD | May 19, 05:30 UTC | May 19, 06:05 UTC | 35m |
| 2026-05-18 | SIA391 | IST → SIN | May 18, 11:25 UTC | May 18, 20:15 UTC | 8h 49m |
| 2026-05-18 | SIA392 | SIN → IST | May 18, 04:45 UTC | May 18, 04:55 UTC | 10m |
| 2026-05-17 | SIA392 | SIN → IST | May 17, 18:35 UTC | May 18, 04:00 UTC | 9h 25m |
| 2026-05-17 | SIA959 | CGK → SIN | May 17, 07:50 UTC | May 17, 09:00 UTC | 1h 10m |
| 2026-05-17 | SIA958 | SIN → CGK | May 17, 06:05 UTC | May 17, 06:15 UTC | 10m |
| 2026-05-17 | SIA958 | SIN → CGK | May 17, 05:00 UTC | May 17, 05:30 UTC | 30m |
| 2026-05-16 | SIA959 | CGK → SIN | May 16, 08:31 UTC | May 16, 09:45 UTC | 1h 15m |
| 2026-05-16 | SIA958 | SIN → CGK | May 16, 05:25 UTC | May 16, 05:56 UTC | 31m |
| 2026-05-15 | SIA351 | CPH → SIN | May 15, 10:05 UTC | May 15, 21:40 UTC | 11h 34m |
| 2026-05-14 | SIA352 | SIN → CPH | May 14, 16:40 UTC | May 15, 05:10 UTC | 12h 30m |
| 2026-05-13 | SIA31 | SFO → SIN | May 13, 19:00 UTC | May 14, 09:35 UTC | 14h 35m |
| 2026-05-13 | SIA32 | SIN → SFO | May 13, 04:55 UTC | May 13, 16:00 UTC | 11h 5m |
| 2026-05-12 | SIA355 | MXP → SIN | May 12, 10:50 UTC | May 12, 21:55 UTC | 11h 5m |
| 2026-05-11 | SIA356 | SIN → MXP | May 11, 16:05 UTC | May 12, 04:35 UTC | 12h 31m |
| 2026-05-10 | SIA31 | SFO → SIN | May 10, 18:45 UTC | May 11, 09:45 UTC | 15h 0m |
| 2026-05-09 | SIA32 | SIN → SFO | May 9, 21:05 UTC | May 10, 15:49 UTC | 18h 45m |
| 2026-05-09 | SIA32 | SIN → SFO | May 9, 20:30 UTC | May 10, 15:49 UTC | 19h 20m |
| 2026-05-09 | SIA37 | LAX → SIN | May 9, 07:05 UTC | May 10, 06:20 UTC | 23h 15m |
| 2026-05-09 | SIA37 | LAX → SIN | May 9, 06:45 UTC | May 10, 05:00 UTC | 22h 15m |
| 2026-05-08 | SIA38 | SIN → LAX | May 8, 16:20 UTC | May 9, 04:10 UTC | 11h 50m |
| 2026-05-08 | SIA38 | SIN → LAX | May 8, 07:04 UTC | May 9, 04:10 UTC | 21h 5m |
| 2026-05-08 | SIA38 | SIN → LAX | May 8, 06:50 UTC | May 9, 04:10 UTC | 21h 20m |
| 2026-05-08 | SIA27 | SEA → SIN | May 8, 03:19 UTC | May 9, 03:00 UTC | 23h 40m |
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-SJD page for operator, model, and routing details .