sensors Mode-S transponder
78232F
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-227X · BOEING 777-200LR
- Hex
- 78232F
- Octal
- 36021457
- Decimal
- 7,873,327
- Country
- CN
- Tail
- B-227X
- Type
- B77L
- Flights observed
- 236
- Distinct callsigns
- 15
- Country
- CN
- Last broadcast
- 9h ago
Last known position
Country allocation
The ICAO 24-bit address 78232F 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 | - | 60 | 2026-07-10 |
| YZR7919 | - | 51 | 2026-07-08 |
| YZR7931 | - | 27 | 2026-07-13 |
| YZR7927 | - | 18 | 2026-07-08 |
| YZR7922 | - | 16 | 2026-07-07 |
| YZR7906 | - | 13 | 2026-07-11 |
| YZR7935 | - | 12 | 2026-07-11 |
| YZR7920 | - | 12 | 2026-07-13 |
| YZR7936 | - | 7 | 2026-07-11 |
| YZR7932 | - | 6 | 2026-07-02 |
| YZR7930 | - | 4 | 2026-05-30 |
| YZR7929 | Yangtze River Express | 4 | 2026-04-20 |
| YZR7908 | - | 2 | 2026-06-27 |
| YZR7413 | - | 2 | 2026-07-01 |
| YZR7411 | - | 2 | 2026-06-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | YZR7920 | - | Jul 13, 11:55 UTC | Jul 13, 18:00 UTC | 6h 5m |
| 2026-07-13 | YZR7931 | - | Jul 13, 06:10 UTC | Jul 13, 06:15 UTC | 5m |
| 2026-07-12 | YZR7931 | - | Jul 12, 23:50 UTC | Jul 13, 03:30 UTC | 3h 40m |
| 2026-07-12 | YZR7931 | - | Jul 12, 01:50 UTC | Jul 13, 00:30 UTC | 22h 40m |
| 2026-07-11 | YZR7906 | - | Jul 11, 19:40 UTC | Jul 12, 01:50 UTC | 6h 10m |
| 2026-07-11 | YZR7935 | - | Jul 11, 07:30 UTC | Jul 11, 16:50 UTC | 9h 20m |
| 2026-07-11 | YZR7936 | - | Jul 11, 01:55 UTC | Jul 11, 02:05 UTC | 10m |
| 2026-07-10 | YZR7936 | - | Jul 10, 17:05 UTC | Jul 10, 23:05 UTC | 6h 0m |
| 2026-07-10 | YZR7905 | - | Jul 10, 06:50 UTC | Jul 10, 13:25 UTC | 6h 35m |
| 2026-07-09 | YZR7905 | - | Jul 9, 15:50 UTC | Jul 10, 13:25 UTC | 21h 35m |
| 2026-07-09 | YZR7905 | - | Jul 9, 14:10 UTC | Jul 10, 13:25 UTC | 23h 15m |
| 2026-07-08 | YZR7919 | - | Jul 8, 13:10 UTC | Jul 9, 09:00 UTC | 19h 50m |
| 2026-07-08 | YZR7927 | - | Jul 8, 09:00 UTC | Jul 8, 09:35 UTC | 35m |
| 2026-07-07 | YZR7922 | - | Jul 7, 12:15 UTC | Jul 8, 07:45 UTC | 19h 30m |
| 2026-07-06 | YZR7919 | - | Jul 6, 13:15 UTC | Jul 7, 07:40 UTC | 18h 25m |
| 2026-07-06 | YZR7919 | - | Jul 6, 09:50 UTC | Jul 7, 07:40 UTC | 21h 50m |
| 2026-07-06 | YZR7920 | - | Jul 6, 07:55 UTC | Jul 7, 07:40 UTC | 23h 45m |
| 2026-07-05 | YZR7931 | - | Jul 5, 01:50 UTC | Jul 5, 21:20 UTC | 19h 30m |
| 2026-07-05 | YZR7931 | - | Jul 5, 01:40 UTC | Jul 5, 21:20 UTC | 19h 40m |
| 2026-07-04 | YZR7931 | - | Jul 4, 21:50 UTC | Jul 5, 21:20 UTC | 23h 30m |
| 2026-07-04 | YZR7906 | - | Jul 4, 20:00 UTC | Jul 5, 19:45 UTC | 23h 45m |
| 2026-07-03 | YZR7935 | - | Jul 3, 21:40 UTC | Jul 4, 15:40 UTC | 18h 0m |
| 2026-07-03 | YZR7935 | - | Jul 3, 17:50 UTC | Jul 4, 15:40 UTC | 21h 50m |
| 2026-07-03 | YZR7935 | - | Jul 3, 16:20 UTC | Jul 4, 15:40 UTC | 23h 20m |
| 2026-07-03 | YZR7905 | - | Jul 3, 06:20 UTC | Jul 3, 13:00 UTC | 6h 40m |
| 2026-07-02 | YZR7905 | - | Jul 2, 15:50 UTC | Jul 3, 13:00 UTC | 21h 10m |
| 2026-07-02 | YZR7932 | - | Jul 2, 14:30 UTC | Jul 3, 07:00 UTC | 16h 30m |
| 2026-07-01 | YZR7413 | - | Jul 1, 13:50 UTC | Jul 2, 09:45 UTC | 19h 55m |
| 2026-07-01 | YZR7413 | - | Jul 1, 12:05 UTC | Jul 2, 09:45 UTC | 21h 40m |
| 2026-07-01 | YZR7927 | - | Jul 1, 06:20 UTC | Jul 1, 09:50 UTC | 3h 30m |
| 2026-06-28 | YZR7922 | - | Jun 28, 22:49 UTC | Jun 29, 04:39 UTC | 5h 50m |
| 2026-06-27 | YZR7411 | - | Jun 27, 22:40 UTC | Jun 28, 17:10 UTC | 18h 30m |
| 2026-06-27 | YZR7411 | - | Jun 27, 20:24 UTC | Jun 28, 17:10 UTC | 20h 45m |
| 2026-06-27 | YZR7908 | - | Jun 27, 17:49 UTC | Jun 28, 17:10 UTC | 23h 20m |
| 2026-06-27 | YZR7908 | - | Jun 27, 17:04 UTC | Jun 28, 11:29 UTC | 18h 25m |
| 2026-06-27 | YZR7935 | - | Jun 27, 02:45 UTC | Jun 27, 09:09 UTC | 6h 25m |
| 2026-06-26 | YZR7936 | - | Jun 26, 22:40 UTC | Jun 26, 22:49 UTC | 10m |
| 2026-06-26 | YZR7936 | - | Jun 26, 13:40 UTC | Jun 26, 19:50 UTC | 6h 10m |
| 2026-06-26 | YZR7905 | - | Jun 26, 03:39 UTC | Jun 26, 10:10 UTC | 6h 30m |
| 2026-06-25 | YZR7905 | - | Jun 25, 11:50 UTC | Jun 26, 10:10 UTC | 22h 20m |
| 2026-06-25 | YZR7905 | - | Jun 25, 11:25 UTC | Jun 26, 09:45 UTC | 22h 20m |
| 2026-06-24 | YZR7931 | - | Jun 24, 23:54 UTC | Jun 25, 06:14 UTC | 6h 20m |
| 2026-06-24 | YZR7931 | - | Jun 24, 04:55 UTC | Jun 25, 03:44 UTC | 22h 50m |
| 2026-06-23 | YZR7906 | - | Jun 23, 23:19 UTC | Jun 24, 05:15 UTC | 5h 55m |
| 2026-06-23 | YZR7935 | - | Jun 23, 08:25 UTC | Jun 23, 17:54 UTC | 9h 30m |
| 2026-06-23 | YZR7936 | - | Jun 23, 03:25 UTC | Jun 23, 03:34 UTC | 10m |
| 2026-06-22 | YZR7936 | - | Jun 22, 18:19 UTC | Jun 23, 00:30 UTC | 6h 10m |
| 2026-06-22 | YZR7905 | - | Jun 22, 08:35 UTC | Jun 22, 15:14 UTC | 6h 40m |
| 2026-06-21 | YZR7905 | - | Jun 21, 17:50 UTC | Jun 22, 15:14 UTC | 21h 25m |
| 2026-06-21 | YZR7905 | - | Jun 21, 16:14 UTC | Jun 22, 15:14 UTC | 23h 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 B-227X page for operator, model, and routing details .