sensors Mode-S transponder
781154
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-8992 · AIRBUS A-321
- Hex
- 781154
- Octal
- 36010524
- Decimal
- 7,868,756
- Country
- CN
- Tail
- B-8992
- Type
- A321
- Flights observed
- 37
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 13h ago
Last known position
Country allocation
The ICAO 24-bit address 781154 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 |
|---|---|---|---|
| CSN3744 | China Southern Airlines | 4 | 2026-04-24 |
| CSN3743 | China Southern Airlines | 3 | 2026-06-02 |
| CSN3616 | China Southern Airlines | 3 | 2026-05-26 |
| CSN5968 | China Southern Airlines | 2 | 2026-05-06 |
| CSN3906 | China Southern Airlines | 2 | 2026-05-18 |
| CSN3624 | China Southern Airlines | 2 | 2026-04-26 |
| CSN3615 | China Southern Airlines | 2 | 2026-05-27 |
| CSN8553 | China Southern Airlines | 1 | 2026-04-23 |
| CSN6786 | China Southern Airlines | 1 | 2026-04-30 |
| CSN6480 | China Southern Airlines | 1 | 2026-04-16 |
| CSN6479 | China Southern Airlines | 1 | 2026-04-16 |
| CSN6346 | China Southern Airlines | 1 | 2026-05-07 |
| CSN6257 | China Southern Airlines | 1 | 2026-05-05 |
| CSN6220 | China Southern Airlines | 1 | 2026-05-02 |
| CSN6202 | - | 1 | 2026-04-19 |
| CSN6141 | China Southern Airlines | 1 | 2026-05-04 |
| CSN6086 | China Southern Airlines | 1 | 2026-05-24 |
| CSN6085 | China Southern Airlines | 1 | 2026-05-24 |
| CSN6063 | China Southern Airlines | 1 | 2026-04-29 |
| CSN5919 | China Southern Airlines | 1 | 2026-04-15 |
Recent flights last 37
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | CSN3743 | HRB → SZX | Jun 2, 07:10 UTC | Jun 2, 07:20 UTC | 10m |
| 2026-05-27 | CSN3615 | CAN → HRB | May 27, 04:45 UTC | May 27, 04:55 UTC | 10m |
| 2026-05-26 | CSN3616 | HRB → CAN | May 26, 07:05 UTC | May 27, 04:55 UTC | 21h 50m |
| 2026-05-26 | CSN3616 | HRB → CAN | May 26, 01:55 UTC | May 26, 07:19 UTC | 5h 25m |
| 2026-05-24 | CSN6086 | NRT → HRB | May 24, 03:55 UTC | May 24, 04:30 UTC | 35m |
| 2026-05-24 | CSN6085 | HRB → NRT | May 24, 01:40 UTC | May 24, 02:10 UTC | 30m |
| 2026-05-18 | CSN3906 | HRB → CAN | May 18, 02:20 UTC | May 18, 08:55 UTC | 6h 35m |
| 2026-05-17 | CSN3906 | HRB → CAN | May 17, 09:05 UTC | May 18, 08:55 UTC | 23h 50m |
| 2026-05-07 | CSN6346 | CKG → HRB | May 7, 11:10 UTC | May 7, 11:25 UTC | 15m |
| 2026-05-06 | CSN5968 | PKX → HRB | May 6, 03:30 UTC | May 6, 03:40 UTC | 10m |
| 2026-05-05 | CSN6257 | HRB → PVG | May 5, 00:50 UTC | May 5, 15:15 UTC | 14h 25m |
| 2026-05-04 | CSN6141 | HRB → PVG | May 4, 10:20 UTC | May 5, 00:50 UTC | 14h 31m |
| 2026-05-04 | CSN5968 | PKX → HRB | May 4, 03:35 UTC | May 4, 03:45 UTC | 10m |
| 2026-05-02 | CSN6220 | PKX → HRB | May 2, 04:30 UTC | May 2, 04:40 UTC | 10m |
| 2026-05-01 | CSN3615 | CAN → HRB | May 1, 02:55 UTC | May 1, 14:05 UTC | 11h 10m |
| 2026-04-30 | CSN6786 | CAN → HAK | Apr 30, 04:30 UTC | Apr 30, 04:40 UTC | 10m |
| 2026-04-29 | CSN6063 | CAN → HKT | Apr 29, 06:39 UTC | Apr 29, 12:15 UTC | 5h 36m |
| 2026-04-26 | CSN3624 | HRB → CAN | Apr 26, 13:40 UTC | Apr 27, 07:15 UTC | 17h 35m |
| 2026-04-26 | CSN3624 | HRB → CAN | Apr 26, 09:05 UTC | Apr 27, 07:15 UTC | 22h 10m |
| 2026-04-26 | CSN3623 | CAN → HRB | Apr 26, 08:50 UTC | Apr 27, 03:15 UTC | 18h 25m |
| 2026-04-24 | CSN3616 | HRB → CAN | Apr 24, 13:05 UTC | Apr 25, 07:20 UTC | 18h 15m |
| 2026-04-24 | CSN3744 | SZX → HRB | Apr 24, 12:55 UTC | Apr 25, 07:20 UTC | 18h 25m |
| 2026-04-24 | CSN3744 | SZX → HRB | Apr 24, 10:30 UTC | Apr 24, 10:40 UTC | 10m |
| 2026-04-23 | CSN8553 | SZX → LYA | Apr 23, 14:15 UTC | Apr 23, 14:25 UTC | 10m |
| 2026-04-23 | CSN3743 | HRB → SZX | Apr 23, 05:40 UTC | Apr 23, 05:50 UTC | 10m |
| 2026-04-19 | CSN6202 | - | Apr 19, 14:50 UTC | Apr 19, 15:00 UTC | 10m |
| 2026-04-18 | CSN3744 | SZX → HRB | Apr 18, 12:05 UTC | Apr 18, 12:20 UTC | 15m |
| 2026-04-18 | CSN3744 | SZX → HRB | Apr 18, 09:35 UTC | Apr 18, 09:45 UTC | 10m |
| 2026-04-17 | CSN5388 | - | Apr 17, 18:25 UTC | Apr 17, 18:35 UTC | 10m |
| 2026-04-17 | CSN5102 | YIW → SZX | Apr 17, 09:45 UTC | Apr 17, 10:10 UTC | 25m |
| 2026-04-17 | CSN5101 | SZX → YIW | Apr 17, 02:10 UTC | Apr 17, 02:25 UTC | 15m |
| 2026-04-16 | CSN6480 | HGH → SZX | Apr 16, 12:34 UTC | Apr 16, 12:55 UTC | 20m |
| 2026-04-16 | CSN6479 | SZX → HGH | Apr 16, 07:24 UTC | Apr 16, 07:34 UTC | 10m |
| 2026-04-16 | CSN3570 | HGH → SZX | Apr 16, 05:45 UTC | Apr 16, 06:00 UTC | 15m |
| 2026-04-16 | CSN3569 | SZX → HGH | Apr 16, 00:35 UTC | Apr 16, 00:45 UTC | 10m |
| 2026-04-15 | CSN5919 | SZX → CKG | Apr 15, 09:15 UTC | Apr 15, 09:25 UTC | 10m |
| 2026-04-15 | CSN3743 | HRB → SZX | Apr 15, 07:10 UTC | Apr 15, 07:20 UTC | 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-8992 page for operator, model, and routing details .