sensors Mode-S transponder
76CEF9
ICAO 24-bit transponder address · allocated to Singapore
Currently assigned to 9V-SWY · BOEING 777-300ER
- Hex
- 76CEF9
- Octal
- 35547371
- Decimal
- 7,786,233
- Country
- SG
- Tail
- 9V-SWY
- Type
- B77W
- Flights observed
- 124
- Distinct callsigns
- 20
- Country
- SG
- Last broadcast
- 1h ago
Current position
Country allocation
The ICAO 24-bit address 76CEF9 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 |
|---|---|---|---|
| SIA892 | Singapore Airlines | 10 | 2026-05-21 |
| SIA318 | Singapore Airlines | 10 | 2026-06-01 |
| SIA11 | Singapore Airlines | 10 | 2026-05-31 |
| SIA26 | Singapore Airlines | 9 | 2026-06-02 |
| SIA321 | Singapore Airlines | 8 | 2026-06-01 |
| SIA25 | Singapore Airlines | 8 | 2026-05-27 |
| SIA305 | Singapore Airlines | 7 | 2026-05-29 |
| SIA12 | Singapore Airlines | 6 | 2026-05-30 |
| SIA893 | Singapore Airlines | 5 | 2026-05-21 |
| SIA831 | Singapore Airlines | 5 | 2026-05-23 |
| SIA802 | Singapore Airlines | 5 | 2026-05-28 |
| SIA631 | Singapore Airlines | 5 | 2026-04-21 |
| SIA306 | Singapore Airlines | 5 | 2026-05-28 |
| SIA953 | Singapore Airlines | 4 | 2026-06-01 |
| SIA807 | Singapore Airlines | 4 | 2026-05-28 |
| SIA227 | Singapore Airlines | 4 | 2026-05-06 |
| SIA636 | Singapore Airlines | 3 | 2026-04-20 |
| SIA238 | Singapore Airlines | 3 | 2026-05-06 |
| SIA965 | Singapore Airlines | 2 | 2026-05-07 |
| SIA964 | Singapore Airlines | 2 | 2026-05-07 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | SIA26 | FRA → JFK | Jun 2, 16:25 UTC | Jun 3, 02:00 UTC | 9h 35m |
| 2026-06-01 | SIA321 | LHR → SIN | Jun 1, 21:25 UTC | Jun 2, 09:55 UTC | 12h 30m |
| 2026-06-01 | SIA318 | SIN → LHR | Jun 1, 05:20 UTC | Jun 1, 18:55 UTC | 13h 35m |
| 2026-06-01 | SIA953 | CGK → SIN | Jun 1, 01:20 UTC | Jun 1, 02:25 UTC | 1h 5m |
| 2026-05-31 | SIA950 | SIN → CGK | May 31, 22:40 UTC | May 31, 23:55 UTC | 1h 15m |
| 2026-05-31 | SIA11 | LAX → NRT | May 31, 17:15 UTC | May 31, 17:40 UTC | 25m |
| 2026-05-31 | SIA11 | LAX → NRT | May 31, 11:15 UTC | May 31, 14:45 UTC | 3h 30m |
| 2026-05-31 | SIA11 | LAX → NRT | May 31, 08:25 UTC | May 31, 08:35 UTC | 10m |
| 2026-05-30 | SIA11 | LAX → NRT | May 30, 21:30 UTC | May 30, 22:30 UTC | 1h 0m |
| 2026-05-30 | SIA12 | NRT → LAX | May 30, 09:55 UTC | May 30, 18:55 UTC | 9h 0m |
| 2026-05-30 | SIA12 | NRT → LAX | May 30, 04:50 UTC | May 30, 07:55 UTC | 3h 5m |
| 2026-05-29 | SIA305 | LHR → SIN | May 29, 09:35 UTC | May 29, 21:40 UTC | 12h 5m |
| 2026-05-28 | SIA306 | SIN → LHR | May 28, 17:30 UTC | May 29, 07:20 UTC | 13h 50m |
| 2026-05-28 | SIA807 | PEK → SIN | May 28, 08:55 UTC | May 28, 14:20 UTC | 5h 25m |
| 2026-05-28 | SIA802 | SIN → PEK | May 28, 01:00 UTC | May 28, 04:15 UTC | 3h 15m |
| 2026-05-27 | SIA25 | FRA → SIN | May 27, 10:40 UTC | May 27, 21:50 UTC | 11h 10m |
| 2026-05-27 | SIA25 | FRA → SIN | May 27, 01:19 UTC | May 27, 08:30 UTC | 7h 10m |
| 2026-05-26 | SIA26 | FRA → JFK | May 26, 06:49 UTC | May 26, 14:30 UTC | 7h 40m |
| 2026-05-25 | SIA26 | FRA → JFK | May 25, 16:30 UTC | May 26, 05:05 UTC | 12h 34m |
| 2026-05-24 | SIA345 | ZRH → SIN | May 24, 10:10 UTC | May 24, 21:25 UTC | 11h 15m |
| 2026-05-23 | SIA346 | SIN → ZRH | May 23, 17:45 UTC | May 24, 06:05 UTC | 12h 20m |
| 2026-05-23 | SIA831 | PVG → SIN | May 23, 00:15 UTC | May 23, 11:40 UTC | 11h 24m |
| 2026-05-22 | SIA335 | CDG → SIN | May 22, 09:50 UTC | May 22, 22:20 UTC | 12h 30m |
| 2026-05-21 | SIA336 | SIN → CDG | May 21, 16:40 UTC | May 22, 05:30 UTC | 12h 50m |
| 2026-05-21 | SIA893 | HKG → SIN | May 21, 08:00 UTC | May 21, 10:55 UTC | 2h 55m |
| 2026-05-21 | SIA892 | SIN → HKG | May 21, 05:05 UTC | May 21, 05:25 UTC | 20m |
| 2026-05-21 | SIA892 | SIN → HKG | May 21, 02:05 UTC | May 21, 02:30 UTC | 25m |
| 2026-05-20 | SIA893 | HKG → SIN | May 20, 07:55 UTC | May 20, 11:10 UTC | 3h 15m |
| 2026-05-20 | SIA892 | SIN → HKG | May 20, 05:10 UTC | May 20, 05:40 UTC | 30m |
| 2026-05-20 | SIA892 | SIN → HKG | May 20, 02:15 UTC | May 20, 02:30 UTC | 15m |
| 2026-05-19 | SIA25 | FRA → SIN | May 19, 10:50 UTC | May 19, 22:35 UTC | 11h 45m |
| 2026-05-19 | SIA25 | FRA → SIN | May 19, 01:35 UTC | May 19, 08:30 UTC | 6h 55m |
| 2026-05-18 | SIA26 | FRA → JFK | May 18, 06:45 UTC | May 18, 14:20 UTC | 7h 35m |
| 2026-05-17 | SIA26 | FRA → JFK | May 17, 16:30 UTC | May 18, 04:55 UTC | 12h 25m |
| 2026-05-16 | SIA321 | LHR → SIN | May 16, 21:30 UTC | May 17, 10:10 UTC | 12h 40m |
| 2026-05-16 | SIA318 | SIN → LHR | May 16, 05:40 UTC | May 16, 18:45 UTC | 13h 6m |
| 2026-05-15 | SIA953 | CGK → SIN | May 15, 22:45 UTC | May 16, 02:30 UTC | 3h 45m |
| 2026-05-15 | SIA11 | LAX → NRT | May 15, 16:05 UTC | May 15, 16:15 UTC | 10m |
| 2026-05-15 | SIA11 | LAX → NRT | May 15, 10:20 UTC | May 15, 13:30 UTC | 3h 10m |
| 2026-05-14 | SIA11 | LAX → NRT | May 14, 21:35 UTC | May 15, 08:20 UTC | 10h 45m |
| 2026-05-14 | SIA12 | NRT → LAX | May 14, 10:00 UTC | May 14, 19:10 UTC | 9h 10m |
| 2026-05-14 | SIA12 | NRT → LAX | May 14, 05:00 UTC | May 14, 07:55 UTC | 2h 55m |
| 2026-05-14 | SIA12 | NRT → LAX | May 14, 01:50 UTC | May 14, 02:00 UTC | 10m |
| 2026-05-13 | SIA11 | LAX → NRT | May 13, 10:20 UTC | May 13, 15:30 UTC | 5h 10m |
| 2026-05-13 | SIA11 | LAX → NRT | May 13, 07:55 UTC | May 13, 08:25 UTC | 30m |
| 2026-05-12 | SIA11 | LAX → NRT | May 12, 21:30 UTC | May 13, 03:05 UTC | 5h 35m |
| 2026-05-12 | SIA12 | NRT → LAX | May 12, 10:00 UTC | May 12, 19:20 UTC | 9h 20m |
| 2026-05-11 | SIA305 | LHR → SIN | May 11, 12:40 UTC | May 12, 07:50 UTC | 19h 10m |
| 2026-05-11 | SIA305 | LHR → SIN | May 11, 10:20 UTC | May 12, 07:50 UTC | 21h 30m |
| 2026-05-11 | SIA305 | LHR → SIN | May 11, 08:55 UTC | May 12, 07:50 UTC | 22h 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-SWY page for operator, model, and routing details .