sensors Mode-S transponder
782307
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-227U · BOEING 777-200LR
- Hex
- 782307
- Octal
- 36021407
- Decimal
- 7,873,287
- Country
- CN
- Tail
- B-227U
- Type
- B77L
- Flights observed
- 240
- Distinct callsigns
- 15
- Country
- CN
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 782307 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 15 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| YZR7905 | - | 66 | 2026-07-13 |
| YZR7919 | - | 45 | 2026-07-11 |
| YZR7931 | - | 25 | 2026-07-08 |
| YZR7922 | - | 22 | 2026-07-10 |
| YZR7927 | - | 19 | 2026-07-11 |
| YZR7906 | - | 13 | 2026-07-08 |
| YZR7920 | - | 11 | 2026-06-22 |
| YZR7930 | - | 9 | 2026-07-11 |
| YZR7936 | - | 7 | 2026-07-14 |
| YZR7932 | - | 6 | 2026-06-28 |
| YZR7939 | - | 5 | 2026-07-09 |
| YZR7935 | - | 5 | 2026-07-07 |
| YZR7925 | - | 3 | 2026-05-09 |
| YZR7908 | - | 3 | 2026-07-01 |
| YZR7999 | - | 1 | 2026-05-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | YZR7936 | - | Jul 14, 04:05 UTC | Jul 14, 04:15 UTC | 10m |
| 2026-07-13 | YZR7936 | - | Jul 13, 19:15 UTC | Jul 14, 01:20 UTC | 6h 5m |
| 2026-07-13 | YZR7905 | - | Jul 13, 09:50 UTC | Jul 13, 16:25 UTC | 6h 35m |
| 2026-07-12 | YZR7905 | - | Jul 12, 17:50 UTC | Jul 13, 16:25 UTC | 22h 35m |
| 2026-07-12 | YZR7905 | - | Jul 12, 17:01 UTC | Jul 13, 15:45 UTC | 22h 45m |
| 2026-07-11 | YZR7919 | - | Jul 11, 16:25 UTC | Jul 12, 10:40 UTC | 18h 15m |
| 2026-07-11 | YZR7930 | - | Jul 11, 15:00 UTC | Jul 11, 15:10 UTC | 10m |
| 2026-07-11 | YZR7927 | - | Jul 11, 12:15 UTC | Jul 11, 12:45 UTC | 30m |
| 2026-07-10 | YZR7922 | - | Jul 10, 16:40 UTC | Jul 11, 11:05 UTC | 18h 25m |
| 2026-07-09 | YZR7919 | - | Jul 9, 17:50 UTC | Jul 10, 12:15 UTC | 18h 25m |
| 2026-07-09 | YZR7919 | - | Jul 9, 17:35 UTC | Jul 10, 12:15 UTC | 18h 40m |
| 2026-07-09 | YZR7919 | - | Jul 9, 13:50 UTC | Jul 10, 12:15 UTC | 22h 25m |
| 2026-07-09 | YZR7939 | - | Jul 9, 13:00 UTC | Jul 10, 11:45 UTC | 22h 45m |
| 2026-07-09 | YZR7939 | - | Jul 9, 08:55 UTC | Jul 9, 10:20 UTC | 1h 25m |
| 2026-07-08 | YZR7931 | - | Jul 8, 23:15 UTC | Jul 9, 05:40 UTC | 6h 25m |
| 2026-07-08 | YZR7931 | - | Jul 8, 09:30 UTC | Jul 9, 05:40 UTC | 20h 10m |
| 2026-07-08 | YZR7906 | - | Jul 8, 03:50 UTC | Jul 9, 03:00 UTC | 23h 10m |
| 2026-07-08 | YZR7906 | - | Jul 8, 03:25 UTC | Jul 8, 23:55 UTC | 20h 30m |
| 2026-07-07 | YZR7935 | - | Jul 7, 05:45 UTC | Jul 7, 23:45 UTC | 18h 0m |
| 2026-07-07 | YZR7935 | - | Jul 7, 01:50 UTC | Jul 7, 23:45 UTC | 21h 55m |
| 2026-07-07 | YZR7936 | - | Jul 7, 00:25 UTC | Jul 7, 23:45 UTC | 23h 20m |
| 2026-07-06 | YZR7905 | - | Jul 6, 14:20 UTC | Jul 6, 20:50 UTC | 6h 30m |
| 2026-07-05 | YZR7905 | - | Jul 5, 21:50 UTC | Jul 6, 20:50 UTC | 23h 0m |
| 2026-07-05 | YZR7905 | - | Jul 5, 20:35 UTC | Jul 6, 19:45 UTC | 23h 10m |
| 2026-07-04 | YZR7919 | - | Jul 4, 23:30 UTC | Jul 5, 16:45 UTC | 17h 15m |
| 2026-07-04 | YZR7930 | - | Jul 4, 21:55 UTC | Jul 4, 22:05 UTC | 10m |
| 2026-07-04 | YZR7927 | - | Jul 4, 16:25 UTC | Jul 4, 16:45 UTC | 20m |
| 2026-07-03 | YZR7927 | - | Jul 3, 22:00 UTC | Jul 4, 15:00 UTC | 17h 0m |
| 2026-07-03 | YZR7927 | - | Jul 3, 17:50 UTC | Jul 4, 15:00 UTC | 21h 10m |
| 2026-07-03 | YZR7922 | - | Jul 3, 16:15 UTC | Jul 4, 15:00 UTC | 22h 45m |
| 2026-07-02 | YZR7919 | - | Jul 2, 17:50 UTC | Jul 3, 12:35 UTC | 18h 45m |
| 2026-07-02 | YZR7939 | - | Jul 2, 13:25 UTC | Jul 3, 06:40 UTC | 17h 15m |
| 2026-07-02 | YZR7939 | AMS → OSL | Jul 2, 09:15 UTC | Jul 2, 10:35 UTC | 1h 20m |
| 2026-07-02 | YZR7919 | - | Jul 2, 00:00 UTC | Jul 2, 06:35 UTC | 6h 35m |
| 2026-07-01 | YZR7919 | - | Jul 1, 08:05 UTC | Jul 2, 06:35 UTC | 22h 30m |
| 2026-07-01 | YZR7919 | - | Jul 1, 05:10 UTC | Jul 2, 03:35 UTC | 22h 25m |
| 2026-07-01 | YZR7908 | - | Jul 1, 01:50 UTC | Jul 2, 00:35 UTC | 22h 45m |
| 2026-06-30 | YZR7908 | - | Jun 30, 23:30 UTC | Jul 1, 08:10 UTC | 8h 40m |
| 2026-06-30 | YZR7935 | - | Jun 30, 10:25 UTC | Jun 30, 20:10 UTC | 9h 45m |
| 2026-06-30 | YZR7936 | - | Jun 30, 04:30 UTC | Jun 30, 04:40 UTC | 10m |
| 2026-06-29 | YZR7936 | - | Jun 29, 19:44 UTC | Jun 30, 01:40 UTC | 5h 56m |
| 2026-06-29 | YZR7905 | - | Jun 29, 09:54 UTC | Jun 29, 16:29 UTC | 6h 35m |
| 2026-06-28 | YZR7905 | - | Jun 28, 17:50 UTC | Jun 29, 16:29 UTC | 22h 40m |
| 2026-06-28 | YZR7932 | - | Jun 28, 17:04 UTC | Jun 29, 15:45 UTC | 22h 40m |
| 2026-06-27 | YZR7919 | - | Jun 27, 19:49 UTC | Jun 28, 13:55 UTC | 18h 5m |
| 2026-06-27 | YZR7919 | - | Jun 27, 17:49 UTC | Jun 28, 13:55 UTC | 20h 5m |
| 2026-06-27 | YZR7927 | - | Jun 27, 13:49 UTC | Jun 27, 14:20 UTC | 30m |
| 2026-06-26 | YZR7922 | - | Jun 26, 17:50 UTC | Jun 27, 12:34 UTC | 18h 45m |
| 2026-06-26 | YZR7922 | - | Jun 26, 17:25 UTC | Jun 26, 23:15 UTC | 5h 50m |
| 2026-06-25 | YZR7919 | - | Jun 25, 18:50 UTC | Jun 26, 13:30 UTC | 18h 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 B-227U page for operator, model, and routing details .