sensors Mode-S transponder
78154F
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-303H · AIRBUS A-321neo
- Hex
- 78154F
- Octal
- 36012517
- Decimal
- 7,869,775
- Country
- CN
- Tail
- B-303H
- Type
- A21N
- Flights observed
- 53
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 3d ago
Last known position
Country allocation
The ICAO 24-bit address 78154F 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 |
|---|---|---|---|
| CSN6141 | China Southern Airlines | 8 | 2026-05-14 |
| CSN3616 | China Southern Airlines | 7 | 2026-05-21 |
| CSN3906 | China Southern Airlines | 5 | 2026-05-04 |
| CSN5974 | China Southern Airlines | 4 | 2026-05-08 |
| CSN6259 | China Southern Airlines | 3 | 2026-05-26 |
| CSN6085 | China Southern Airlines | 3 | 2026-04-29 |
| CSN5973 | China Southern Airlines | 3 | 2026-05-28 |
| CSN8635 | China Southern Airlines | 2 | 2026-05-15 |
| CSN6086 | China Southern Airlines | 2 | 2026-04-29 |
| CSN3905 | China Southern Airlines | 2 | 2026-05-07 |
| CSN8719 | China Southern Airlines | 1 | 2026-04-30 |
| CSN8566 | China Southern Airlines | 1 | 2026-04-19 |
| CSN6277 | China Southern Airlines | 1 | 2026-05-27 |
| CSN6257 | China Southern Airlines | 1 | 2026-04-18 |
| CSN6256 | China Southern Airlines | 1 | 2026-05-06 |
| CSN5823 | China Southern Airlines | 1 | 2026-04-23 |
| CSN5300 | China Southern Airlines | 1 | 2026-04-25 |
| CSN3744 | China Southern Airlines | 1 | 2026-05-11 |
| CSN3743 | China Southern Airlines | 1 | 2026-05-11 |
| CSN3624 | China Southern Airlines | 1 | 2026-05-30 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | CSN3624 | HRB → CAN | May 30, 13:25 UTC | May 30, 13:40 UTC | 15m |
| 2026-05-28 | CSN5973 | HRB → CSX | May 28, 01:10 UTC | May 28, 13:20 UTC | 12h 10m |
| 2026-05-27 | CSN6277 | HRB → TNA | May 27, 01:24 UTC | May 27, 01:34 UTC | 10m |
| 2026-05-26 | CSN6259 | HRB → HGH | May 26, 01:20 UTC | May 26, 15:00 UTC | 13h 40m |
| 2026-05-22 | CSN3062 | ICN → CAN | May 22, 08:00 UTC | May 22, 08:25 UTC | 25m |
| 2026-05-22 | CSN3061 | CAN → ICN | May 22, 05:45 UTC | May 22, 06:25 UTC | 40m |
| 2026-05-21 | CSN3616 | HRB → CAN | May 21, 04:50 UTC | May 21, 09:30 UTC | 4h 40m |
| 2026-05-17 | CSN3616 | HRB → CAN | May 17, 13:25 UTC | May 18, 07:40 UTC | 18h 15m |
| 2026-05-15 | CSN8635 | HRB → HGH | May 15, 01:15 UTC | May 15, 15:45 UTC | 14h 29m |
| 2026-05-14 | CSN6141 | HRB → PVG | May 14, 10:00 UTC | May 15, 02:00 UTC | 16h 0m |
| 2026-05-14 | CSN6141 | HRB → PVG | May 14, 01:50 UTC | May 15, 01:20 UTC | 23h 30m |
| 2026-05-14 | CSN6141 | HRB → PVG | May 14, 01:10 UTC | May 14, 10:40 UTC | 9h 30m |
| 2026-05-12 | - | - | May 12, 08:45 UTC | May 12, 14:00 UTC | 5h 15m |
| 2026-05-11 | CSN3744 | SZX → HRB | May 11, 09:35 UTC | May 11, 09:45 UTC | 10m |
| 2026-05-11 | CSN3743 | HRB → SZX | May 11, 06:50 UTC | May 11, 07:05 UTC | 15m |
| 2026-05-09 | CSN5973 | HRB → CSX | May 9, 00:55 UTC | May 9, 13:15 UTC | 12h 20m |
| 2026-05-08 | CSN5974 | CSX → HRB | May 8, 13:00 UTC | May 9, 01:10 UTC | 12h 10m |
| 2026-05-08 | CSN5973 | HRB → CSX | May 8, 01:09 UTC | May 8, 13:15 UTC | 12h 5m |
| 2026-05-07 | CSN3905 | CAN → HRB | May 7, 14:05 UTC | May 8, 13:15 UTC | 23h 10m |
| 2026-05-07 | CSN3616 | HRB → CAN | May 7, 02:50 UTC | May 7, 07:30 UTC | 4h 40m |
| 2026-05-06 | CSN6256 | TFU → HRB | May 6, 09:15 UTC | May 6, 13:55 UTC | 4h 40m |
| 2026-05-05 | CSN3905 | CAN → HRB | May 5, 14:10 UTC | May 6, 13:45 UTC | 23h 35m |
| 2026-05-05 | CSN3616 | HRB → CAN | May 5, 03:00 UTC | May 5, 14:30 UTC | 11h 30m |
| 2026-05-04 | CSN3906 | HRB → CAN | May 4, 01:55 UTC | May 4, 13:45 UTC | 11h 50m |
| 2026-05-03 | CSN3906 | HRB → CAN | May 3, 08:55 UTC | May 4, 02:19 UTC | 17h 25m |
| 2026-05-01 | CSN3616 | HRB → CAN | May 1, 13:40 UTC | May 2, 07:40 UTC | 18h 0m |
| 2026-05-01 | CSN3616 | HRB → CAN | May 1, 08:50 UTC | May 2, 07:40 UTC | 22h 50m |
| 2026-05-01 | CSN3906 | HRB → CAN | May 1, 02:00 UTC | May 1, 13:55 UTC | 11h 55m |
| 2026-04-30 | CSN3906 | HRB → CAN | Apr 30, 15:15 UTC | May 1, 13:45 UTC | 22h 30m |
| 2026-04-30 | CSN3906 | HRB → CAN | Apr 30, 08:00 UTC | May 1, 02:30 UTC | 18h 30m |
| 2026-04-30 | CSN8719 | HRB → CAN | Apr 30, 03:20 UTC | Apr 30, 15:35 UTC | 12h 15m |
| 2026-04-29 | CSN6086 | NRT → HRB | Apr 29, 04:20 UTC | Apr 29, 15:40 UTC | 11h 21m |
| 2026-04-29 | CSN6085 | HRB → NRT | Apr 29, 01:50 UTC | Apr 29, 02:20 UTC | 30m |
| 2026-04-28 | CSN6085 | HRB → NRT | Apr 28, 07:05 UTC | Apr 29, 02:20 UTC | 19h 15m |
| 2026-04-27 | CSN5974 | CSX → HRB | Apr 27, 13:10 UTC | Apr 28, 07:10 UTC | 18h 0m |
| 2026-04-27 | CSN5974 | CSX → HRB | Apr 27, 01:05 UTC | Apr 27, 13:25 UTC | 12h 20m |
| 2026-04-26 | CSN5974 | CSX → HRB | Apr 26, 15:10 UTC | Apr 27, 13:25 UTC | 22h 15m |
| 2026-04-26 | CSN6141 | HRB → PVG | Apr 26, 09:50 UTC | Apr 27, 01:15 UTC | 15h 25m |
| 2026-04-26 | CSN6141 | HRB → PVG | Apr 26, 01:50 UTC | Apr 27, 01:15 UTC | 23h 25m |
| 2026-04-26 | CSN6141 | HRB → PVG | Apr 26, 01:15 UTC | Apr 26, 15:15 UTC | 14h 0m |
| 2026-04-25 | CSN6141 | HRB → PVG | Apr 25, 13:20 UTC | Apr 26, 10:40 UTC | 21h 20m |
| 2026-04-25 | CSN5300 | JHG → PKX | Apr 25, 05:55 UTC | Apr 26, 01:50 UTC | 19h 55m |
| 2026-04-23 | CSN5823 | HRB → WUH | Apr 23, 14:15 UTC | Apr 24, 07:00 UTC | 16h 45m |
| 2026-04-21 | CSN3489 | CAN → KMG | Apr 21, 11:35 UTC | Apr 21, 11:45 UTC | 10m |
| 2026-04-21 | CSN3616 | HRB → CAN | Apr 21, 07:25 UTC | Apr 21, 07:45 UTC | 20m |
| 2026-04-19 | CSN8566 | XIY → HRB | Apr 19, 13:15 UTC | Apr 19, 13:30 UTC | 15m |
| 2026-04-18 | CSN6257 | HRB → PVG | Apr 18, 00:15 UTC | Apr 18, 15:15 UTC | 15h 0m |
| 2026-04-17 | CSN8635 | HRB → HGH | Apr 17, 10:10 UTC | Apr 17, 10:55 UTC | 45m |
| 2026-04-17 | CSN6259 | HRB → HGH | Apr 17, 01:25 UTC | Apr 17, 02:10 UTC | 45m |
| 2026-04-16 | CSN6141 | HRB → PVG | Apr 16, 09:54 UTC | Apr 16, 10:40 UTC | 45m |
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-303H page for operator, model, and routing details .