sensors Mode-S transponder
76CD42
ICAO 24-bit transponder address · allocated to Singapore
Currently assigned to 9V-SJB · AIRBUS A-350-900
- Hex
- 76CD42
- Octal
- 35546502
- Decimal
- 7,785,794
- Country
- SG
- Tail
- 9V-SJB
- Type
- A359
- Flights observed
- 186
- Distinct callsigns
- 20
- Country
- SG
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 76CD42 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 |
|---|---|---|---|
| SIA31 | - | 13 | 2026-07-05 |
| SIA32 | - | 12 | 2026-07-04 |
| SIA38 | Singapore Airlines | 11 | 2026-06-22 |
| SIA297 | - | 11 | 2026-07-11 |
| SIA37 | Singapore Airlines | 10 | 2026-06-23 |
| SIA298 | - | 10 | 2026-07-12 |
| SIA479 | - | 7 | 2026-06-29 |
| SIA478 | - | 6 | 2026-06-29 |
| SIA958 | - | 5 | 2026-06-12 |
| SIA722 | - | 5 | 2026-06-18 |
| SIA721 | - | 5 | 2026-06-18 |
| SIA482 | - | 5 | 2026-07-13 |
| SIA481 | - | 5 | 2026-07-13 |
| SIA27 | - | 5 | 2026-07-11 |
| SIA324 | Singapore Airlines | 4 | 2026-06-10 |
| SIA323 | Singapore Airlines | 4 | 2026-06-11 |
| SIA352 | Singapore Airlines | 3 | 2026-06-30 |
| SIA351 | - | 3 | 2026-07-01 |
| SIA338 | Singapore Airlines | 3 | 2026-06-09 |
| SIA312 | Singapore Airlines | 3 | 2026-05-11 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | SIA481 | - | Jul 13, 19:00 UTC | Jul 14, 04:40 UTC | 9h 40m |
| 2026-07-13 | SIA482 | - | Jul 13, 06:40 UTC | Jul 13, 17:10 UTC | 10h 30m |
| 2026-07-12 | SIA248 | - | Jul 12, 20:20 UTC | Jul 12, 21:35 UTC | 1h 15m |
| 2026-07-12 | SIA247 | - | Jul 12, 17:01 UTC | Jul 12, 18:15 UTC | 1h 15m |
| 2026-07-12 | SIA298 | - | Jul 12, 09:20 UTC | Jul 12, 09:50 UTC | 30m |
| 2026-07-11 | SIA298 | - | Jul 11, 23:00 UTC | Jul 12, 02:05 UTC | 3h 5m |
| 2026-07-11 | SIA297 | - | Jul 11, 18:15 UTC | Jul 11, 21:00 UTC | 2h 45m |
| 2026-07-11 | SIA27 | - | Jul 11, 08:35 UTC | Jul 11, 08:45 UTC | 10m |
| 2026-07-10 | SIA27 | - | Jul 10, 17:50 UTC | Jul 11, 07:10 UTC | 13h 20m |
| 2026-07-10 | SIA28 | - | Jul 10, 04:35 UTC | Jul 10, 15:30 UTC | 10h 55m |
| 2026-07-09 | SIA387 | - | Jul 9, 10:10 UTC | Jul 9, 22:55 UTC | 12h 45m |
| 2026-07-08 | SIA388 | - | Jul 8, 16:05 UTC | Jul 9, 04:55 UTC | 12h 50m |
| 2026-07-08 | SIA963 | - | Jul 8, 11:30 UTC | Jul 8, 12:45 UTC | 1h 15m |
| 2026-07-08 | SIA962 | - | Jul 8, 09:40 UTC | Jul 8, 10:00 UTC | 20m |
| 2026-07-08 | SIA962 | - | Jul 8, 08:35 UTC | Jul 8, 09:05 UTC | 30m |
| 2026-07-07 | SIA481 | - | Jul 7, 18:50 UTC | Jul 8, 04:25 UTC | 9h 35m |
| 2026-07-07 | SIA482 | - | Jul 7, 06:35 UTC | Jul 7, 17:00 UTC | 10h 25m |
| 2026-07-06 | SIA481 | - | Jul 6, 18:40 UTC | Jul 7, 04:20 UTC | 9h 40m |
| 2026-07-06 | SIA482 | - | Jul 6, 06:35 UTC | Jul 6, 16:55 UTC | 10h 20m |
| 2026-07-06 | SIA105 | - | Jul 6, 02:45 UTC | Jul 6, 03:30 UTC | 45m |
| 2026-07-06 | SIA106 | - | Jul 6, 00:40 UTC | Jul 6, 01:10 UTC | 30m |
| 2026-07-05 | SIA31 | - | Jul 5, 10:20 UTC | Jul 5, 10:50 UTC | 30m |
| 2026-07-04 | SIA31 | - | Jul 4, 19:10 UTC | Jul 5, 08:55 UTC | 13h 45m |
| 2026-07-04 | SIA32 | - | Jul 4, 04:55 UTC | Jul 4, 16:40 UTC | 11h 45m |
| 2026-07-04 | SIA32 | - | Jul 4, 01:55 UTC | Jul 4, 02:05 UTC | 10m |
| 2026-07-03 | SIA301 | - | Jul 3, 10:20 UTC | Jul 3, 22:40 UTC | 12h 20m |
| 2026-07-02 | SIA302 | SIN → MAN | Jul 2, 18:40 UTC | Jul 3, 08:15 UTC | 13h 35m |
| 2026-07-02 | SIA895 | - | Jul 2, 14:05 UTC | Jul 2, 14:35 UTC | 30m |
| 2026-07-02 | SIA895 | - | Jul 2, 11:30 UTC | Jul 2, 11:45 UTC | 15m |
| 2026-07-02 | SIA894 | - | Jul 2, 08:55 UTC | Jul 2, 09:15 UTC | 20m |
| 2026-07-02 | SIA894 | - | Jul 2, 05:50 UTC | Jul 2, 06:00 UTC | 10m |
| 2026-07-01 | SIA351 | - | Jul 1, 10:20 UTC | Jul 1, 22:30 UTC | 12h 10m |
| 2026-06-30 | SIA352 | SIN → CPH | Jun 30, 16:35 UTC | Jul 1, 05:05 UTC | 12h 30m |
| 2026-06-30 | SIA125 | - | Jun 30, 12:50 UTC | Jun 30, 13:25 UTC | 35m |
| 2026-06-30 | SIA126 | - | Jun 30, 10:40 UTC | Jun 30, 11:35 UTC | 55m |
| 2026-06-30 | SIA875 | - | Jun 30, 07:35 UTC | Jun 30, 08:10 UTC | 35m |
| 2026-06-30 | SIA875 | - | Jun 30, 05:00 UTC | Jun 30, 05:10 UTC | 10m |
| 2026-06-30 | SIA874 | - | Jun 30, 03:05 UTC | Jun 30, 03:20 UTC | 15m |
| 2026-06-30 | SIA874 | - | Jun 30, 00:00 UTC | Jun 30, 00:25 UTC | 25m |
| 2026-06-29 | SIA479 | - | Jun 29, 12:00 UTC | Jun 29, 22:05 UTC | 10h 5m |
| 2026-06-29 | SIA479 | - | Jun 29, 10:20 UTC | Jun 29, 10:34 UTC | 15m |
| 2026-06-29 | SIA479 | - | Jun 29, 09:05 UTC | Jun 29, 09:25 UTC | 20m |
| 2026-06-29 | SIA478 | - | Jun 29, 05:24 UTC | Jun 29, 07:15 UTC | 1h 50m |
| 2026-06-28 | SIA478 | - | Jun 28, 17:44 UTC | Jun 29, 04:00 UTC | 10h 15m |
| 2026-06-27 | SIA313 | - | Jun 27, 12:29 UTC | Jun 28, 00:59 UTC | 12h 30m |
| 2026-06-26 | SIA314 | - | Jun 26, 18:49 UTC | Jun 27, 08:35 UTC | 13h 45m |
| 2026-06-26 | SIA242 | - | Jun 26, 15:45 UTC | Jun 26, 15:54 UTC | 10m |
| 2026-06-26 | SIA242 | - | Jun 26, 08:24 UTC | Jun 26, 09:00 UTC | 35m |
| 2026-06-25 | SIA241 | - | Jun 25, 23:39 UTC | Jun 26, 06:39 UTC | 7h 0m |
| 2026-06-24 | SIA31 | - | Jun 24, 19:04 UTC | Jun 25, 09:05 UTC | 14h 0m |
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-SJB page for operator, model, and routing details .