sensors Mode-S transponder
780031
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-2830 · BOEING 757-200
- Hex
- 780031
- Octal
- 36000061
- Decimal
- 7,864,369
- Country
- CN
- Tail
- B-2830
- Type
- B752
- Flights observed
- 99
- Distinct callsigns
- 11
- Country
- CN
- Last broadcast
- 3h ago
Current position
Country allocation
The ICAO 24-bit address 780031 falls within the block assigned to China (CN) by ICAO Annex 10, Volume III. Every aircraft registered in China 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 11 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| 0000000 | - | 28 | 2026-07-14 |
| HYT9053 | - | 19 | 2026-05-21 |
| HYT9054 | - | 17 | 2026-05-21 |
| HYT9051 | - | 11 | 2026-05-21 |
| HYT9052 | YTO Cargo Ltd | 9 | 2026-05-12 |
| HYT9158 | - | 4 | 2026-07-10 |
| HYT9130 | - | 4 | 2026-07-13 |
| HYT9157 | - | 3 | 2026-07-10 |
| HYT9129 | - | 2 | 2026-07-12 |
| HYT9068 | - | 1 | 2026-07-02 |
| HYT9067 | - | 1 | 2026-07-02 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | 0000000 | - | Jul 14, 06:25 UTC | Jul 14, 06:40 UTC | 15m |
| 2026-07-14 | 0000000 | - | Jul 14, 04:10 UTC | Jul 14, 04:45 UTC | 35m |
| 2026-07-14 | 0000000 | - | Jul 14, 02:10 UTC | Jul 14, 02:45 UTC | 35m |
| 2026-07-13 | HYT9130 | - | Jul 13, 02:01 UTC | Jul 13, 09:45 UTC | 7h 45m |
| 2026-07-12 | HYT9130 | - | Jul 12, 08:05 UTC | Jul 12, 11:20 UTC | 3h 15m |
| 2026-07-12 | 0000000 | - | Jul 12, 07:01 UTC | Jul 12, 07:10 UTC | 10m |
| 2026-07-12 | HYT9129 | - | Jul 12, 03:50 UTC | Jul 12, 06:30 UTC | 2h 40m |
| 2026-07-12 | 0000000 | - | Jul 12, 02:30 UTC | Jul 12, 02:45 UTC | 15m |
| 2026-07-11 | 0000000 | - | Jul 11, 06:25 UTC | Jul 11, 06:50 UTC | 25m |
| 2026-07-10 | HYT9158 | - | Jul 10, 08:00 UTC | Jul 10, 11:00 UTC | 3h 0m |
| 2026-07-10 | HYT9157 | - | Jul 10, 03:05 UTC | Jul 10, 06:00 UTC | 2h 55m |
| 2026-07-09 | 0000000 | RGN → MDL | Jul 9, 14:50 UTC | Jul 9, 16:10 UTC | 1h 20m |
| 2026-07-09 | 0000000 | - | Jul 9, 11:40 UTC | Jul 9, 12:15 UTC | 35m |
| 2026-07-09 | HYT9130 | - | Jul 9, 06:45 UTC | Jul 9, 09:00 UTC | 2h 15m |
| 2026-07-09 | 0000000 | - | Jul 9, 05:15 UTC | Jul 9, 05:30 UTC | 15m |
| 2026-07-08 | HYT9158 | - | Jul 8, 08:20 UTC | Jul 9, 03:50 UTC | 19h 30m |
| 2026-07-08 | HYT9158 | - | Jul 8, 07:50 UTC | Jul 9, 03:50 UTC | 20h 0m |
| 2026-07-08 | HYT9157 | - | Jul 8, 03:10 UTC | Jul 8, 06:05 UTC | 2h 55m |
| 2026-07-08 | 0000000 | - | Jul 8, 02:00 UTC | Jul 8, 02:35 UTC | 35m |
| 2026-07-07 | 0000000 | - | Jul 7, 10:25 UTC | Jul 7, 10:45 UTC | 20m |
| 2026-07-06 | 0000000 | - | Jul 6, 02:50 UTC | Jul 6, 03:20 UTC | 30m |
| 2026-07-05 | 0000000 | - | Jul 5, 06:30 UTC | Jul 5, 07:20 UTC | 50m |
| 2026-07-05 | 0000000 | - | Jul 5, 04:50 UTC | Jul 5, 05:40 UTC | 50m |
| 2026-07-04 | HYT9158 | - | Jul 4, 07:25 UTC | Jul 4, 10:20 UTC | 2h 55m |
| 2026-07-04 | 0000000 | - | Jul 4, 06:05 UTC | Jul 4, 07:05 UTC | 1h 0m |
| 2026-07-04 | HYT9157 | - | Jul 4, 02:45 UTC | Jul 4, 05:55 UTC | 3h 10m |
| 2026-07-03 | 0000000 | - | Jul 3, 11:00 UTC | Jul 3, 11:45 UTC | 45m |
| 2026-07-03 | HYT9130 | - | Jul 3, 07:00 UTC | Jul 3, 09:35 UTC | 2h 35m |
| 2026-07-03 | 0000000 | - | Jul 3, 05:35 UTC | Jul 3, 06:20 UTC | 45m |
| 2026-07-03 | HYT9129 | - | Jul 3, 01:50 UTC | Jul 3, 04:20 UTC | 2h 30m |
| 2026-07-03 | 0000000 | - | Jul 3, 00:30 UTC | Jul 3, 00:45 UTC | 15m |
| 2026-07-02 | HYT9068 | - | Jul 2, 07:20 UTC | Jul 2, 11:50 UTC | 4h 30m |
| 2026-07-02 | HYT9067 | - | Jul 2, 00:30 UTC | Jul 2, 04:35 UTC | 4h 5m |
| 2026-07-01 | 0000000 | - | Jul 1, 06:20 UTC | Jul 1, 08:10 UTC | 1h 50m |
| 2026-07-01 | 0000000 | - | Jul 1, 03:30 UTC | Jul 1, 04:00 UTC | 30m |
| 2026-07-01 | 0000000 | - | Jul 1, 02:00 UTC | Jul 1, 02:25 UTC | 25m |
| 2026-06-30 | 0000000 | - | Jun 30, 13:35 UTC | Jun 30, 14:20 UTC | 45m |
| 2026-06-30 | 0000000 | - | Jun 30, 11:35 UTC | Jun 30, 12:20 UTC | 45m |
| 2026-06-30 | 0000000 | - | Jun 30, 08:30 UTC | Jun 30, 09:40 UTC | 1h 10m |
| 2026-06-30 | 0000000 | - | Jun 30, 06:30 UTC | Jun 30, 07:10 UTC | 40m |
| 2026-06-30 | 0000000 | - | Jun 30, 04:15 UTC | Jun 30, 05:00 UTC | 45m |
| 2026-06-30 | 0000000 | - | Jun 30, 02:15 UTC | Jun 30, 02:50 UTC | 35m |
| 2026-05-21 | HYT9054 | - | May 21, 18:45 UTC | May 21, 19:55 UTC | 1h 10m |
| 2026-05-21 | HYT9053 | - | May 21, 03:30 UTC | May 21, 17:10 UTC | 13h 40m |
| 2026-05-21 | HYT9051 | - | May 21, 01:00 UTC | May 21, 01:35 UTC | 35m |
| 2026-05-20 | HYT9051 | ICN → ICN | May 20, 03:50 UTC | May 21, 01:35 UTC | 21h 46m |
| 2026-05-20 | HYT9051 | - | May 20, 01:10 UTC | May 20, 01:45 UTC | 35m |
| 2026-05-15 | HYT9054 | - | May 15, 19:25 UTC | May 15, 20:30 UTC | 1h 5m |
| 2026-05-15 | HYT9053 | ICN → MNL | May 15, 04:20 UTC | May 15, 17:55 UTC | 13h 34m |
| 2026-05-14 | HYT9054 | - | May 14, 18:45 UTC | May 15, 01:55 UTC | 7h 10m |
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 B-2830 page for operator, model, and routing details .