sensors Mode-S transponder
781919
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-30EE · AIRBUS A-320neo
- Hex
- 781919
- Octal
- 36014431
- Decimal
- 7,870,745
- Country
- CN
- Tail
- B-30EE
- Type
- A20N
- Flights observed
- 99
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 4d ago
Last known position
Country allocation
The ICAO 24-bit address 781919 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSN6148 | - | 13 | 2026-07-16 |
| CSN6624 | - | 9 | 2026-06-18 |
| CSN6623 | - | 9 | 2026-06-15 |
| CSN8920 | China Southern Airlines | 5 | 2026-07-24 |
| CSN6782 | China Southern Airlines | 5 | 2026-05-31 |
| CSN8919 | China Southern Airlines | 4 | 2026-06-14 |
| CSN6781 | - | 4 | 2026-07-03 |
| CSN6514 | - | 4 | 2026-06-25 |
| CSN6630 | China Southern Airlines | 3 | 2026-05-14 |
| CSN6629 | - | 3 | 2026-07-06 |
| CSN6243 | China Southern Airlines | 3 | 2026-06-16 |
| CSN3836 | - | 3 | 2026-06-21 |
| CSN8752 | China Southern Airlines | 2 | 2026-06-12 |
| CSN6762 | China Southern Airlines | 2 | 2026-04-30 |
| CSN6758 | China Southern Airlines | 2 | 2026-05-01 |
| CSN6736 | China Southern Airlines | 2 | 2026-05-19 |
| CSN6717 | - | 2 | 2026-06-29 |
| CSN6190 | - | 2 | 2026-07-08 |
| CSN5671 | China Southern Airlines | 2 | 2026-05-08 |
| CSN3978 | - | 2 | 2026-06-19 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CSN6294 | KMG → SYX | Jul 26, 12:20 UTC | Jul 26, 15:55 UTC | 3h 35m |
| 2026-07-24 | CSN8920 | XIY → SYX | Jul 24, 16:55 UTC | Jul 25, 06:10 UTC | 13h 15m |
| 2026-07-22 | CSN5520 | - | Jul 22, 12:10 UTC | Jul 22, 18:05 UTC | 5h 55m |
| 2026-07-16 | CSN6148 | - | Jul 16, 05:40 UTC | Jul 16, 10:15 UTC | 4h 35m |
| 2026-07-14 | CSN6148 | - | Jul 14, 05:50 UTC | Jul 14, 10:25 UTC | 4h 35m |
| 2026-07-10 | CSN6293 | - | Jul 10, 12:10 UTC | Jul 11, 00:00 UTC | 11h 51m |
| 2026-07-08 | CSN6190 | - | Jul 8, 04:40 UTC | Jul 8, 12:40 UTC | 8h 0m |
| 2026-07-07 | CSN6190 | - | Jul 7, 04:35 UTC | Jul 7, 12:40 UTC | 8h 5m |
| 2026-07-06 | CSN6189 | - | Jul 6, 12:25 UTC | Jul 7, 12:15 UTC | 23h 50m |
| 2026-07-06 | CSN6629 | - | Jul 6, 06:55 UTC | Jul 7, 04:40 UTC | 21h 45m |
| 2026-07-05 | CSN6629 | - | Jul 5, 13:20 UTC | Jul 6, 07:40 UTC | 18h 20m |
| 2026-07-05 | CSN6629 | - | Jul 5, 08:25 UTC | Jul 6, 07:40 UTC | 23h 15m |
| 2026-07-04 | CSN6148 | - | Jul 4, 11:15 UTC | Jul 5, 08:25 UTC | 21h 10m |
| 2026-07-03 | CSN6148 | - | Jul 3, 22:50 UTC | Jul 4, 11:35 UTC | 12h 45m |
| 2026-07-03 | CSN6781 | - | Jul 3, 09:10 UTC | Jul 4, 07:10 UTC | 22h 0m |
| 2026-07-03 | CSN6781 | - | Jul 3, 03:40 UTC | Jul 3, 23:00 UTC | 19h 20m |
| 2026-07-03 | CSN6781 | - | Jul 3, 00:45 UTC | Jul 3, 23:00 UTC | 22h 15m |
| 2026-07-02 | CSN6148 | - | Jul 2, 09:30 UTC | Jul 3, 04:00 UTC | 18h 30m |
| 2026-07-02 | CSN6148 | - | Jul 2, 02:55 UTC | Jul 3, 00:50 UTC | 21h 55m |
| 2026-07-01 | CSN6734 | - | Jul 1, 09:35 UTC | Jul 2, 03:00 UTC | 17h 25m |
| 2026-06-30 | CSN6716 | PKX → SYX | Jun 30, 13:00 UTC | Jun 30, 15:55 UTC | 2h 55m |
| 2026-06-29 | CSN6717 | - | Jun 29, 10:29 UTC | Jun 29, 10:50 UTC | 20m |
| 2026-06-28 | CSN6715 | SYX → PKX | Jun 28, 06:20 UTC | Jun 28, 06:49 UTC | 30m |
| 2026-06-27 | CSN6717 | SYX → PKX | Jun 27, 10:10 UTC | Jun 27, 10:34 UTC | 25m |
| 2026-06-27 | CSN6712 | - | Jun 27, 00:34 UTC | Jun 27, 08:14 UTC | 7h 40m |
| 2026-06-26 | CSN6360 | - | Jun 26, 10:30 UTC | Jun 26, 10:39 UTC | 10m |
| 2026-06-25 | CSN6514 | - | Jun 25, 13:00 UTC | Jun 26, 06:29 UTC | 17h 30m |
| 2026-06-25 | CSN6514 | - | Jun 25, 00:35 UTC | Jun 25, 13:20 UTC | 12h 45m |
| 2026-06-24 | CSN5173 | - | Jun 24, 05:05 UTC | Jun 24, 14:15 UTC | 9h 10m |
| 2026-06-21 | CSN8751 | SYX → TFU | Jun 21, 15:54 UTC | Jun 22, 05:49 UTC | 13h 55m |
| 2026-06-21 | CSN3836 | - | Jun 21, 01:39 UTC | Jun 21, 11:05 UTC | 9h 25m |
| 2026-06-21 | CSN3977 | SYX → SZX | Jun 21, 00:04 UTC | Jun 21, 00:19 UTC | 15m |
| 2026-06-19 | CSN3836 | - | Jun 19, 12:34 UTC | Jun 20, 06:29 UTC | 17h 55m |
| 2026-06-19 | CSN3978 | - | Jun 19, 03:20 UTC | Jun 19, 12:49 UTC | 9h 30m |
| 2026-06-19 | CSN3977 | SYX → SZX | Jun 19, 01:04 UTC | Jun 19, 01:15 UTC | 10m |
| 2026-06-18 | CSN6624 | - | Jun 18, 06:30 UTC | Jun 18, 17:00 UTC | 10h 30m |
| 2026-06-17 | CSN6624 | - | Jun 17, 09:30 UTC | Jun 18, 06:55 UTC | 21h 25m |
| 2026-06-16 | CSN6243 | DQA → CSX | Jun 16, 05:45 UTC | Jun 16, 09:20 UTC | 3h 35m |
| 2026-06-15 | CSN6243 | DQA → CSX | Jun 15, 13:45 UTC | Jun 16, 09:20 UTC | 19h 35m |
| 2026-06-15 | CSN6623 | - | Jun 15, 08:25 UTC | Jun 16, 06:04 UTC | 21h 40m |
| 2026-06-14 | CSN8919 | SYX → XIY | Jun 14, 15:50 UTC | Jun 15, 06:15 UTC | 14h 24m |
| 2026-06-14 | CSN8919 | SYX → XIY | Jun 14, 08:20 UTC | Jun 15, 06:15 UTC | 21h 54m |
| 2026-06-14 | CSN8919 | SYX → XIY | Jun 14, 07:55 UTC | Jun 15, 06:15 UTC | 22h 19m |
| 2026-06-12 | CSN8752 | TFU → SYX | Jun 12, 14:35 UTC | Jun 13, 06:05 UTC | 15h 29m |
| 2026-06-12 | CSN8752 | TFU → SYX | Jun 12, 09:05 UTC | Jun 13, 06:05 UTC | 20h 59m |
| 2026-06-12 | CSN6624 | NKG → SYX | Jun 12, 06:00 UTC | Jun 12, 14:40 UTC | 8h 40m |
| 2026-06-11 | CSN6624 | NKG → SYX | Jun 11, 09:10 UTC | Jun 12, 06:15 UTC | 21h 6m |
| 2026-06-11 | CSN8920 | XIY → SYX | Jun 11, 00:00 UTC | Jun 11, 09:15 UTC | 9h 15m |
| 2026-06-10 | CSN8920 | XIY → SYX | Jun 10, 12:20 UTC | Jun 11, 09:15 UTC | 20h 55m |
| 2026-06-10 | CSN8920 | XIY → SYX | Jun 10, 12:00 UTC | Jun 11, 09:15 UTC | 21h 15m |
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-30EE page for operator, model, and routing details .