sensors Mode-S transponder
78198D
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-20EW · BOEING 787-9 Dreamliner
- Hex
- 78198D
- Octal
- 36014615
- Decimal
- 7,870,861
- Country
- CN
- Tail
- B-20EW
- Type
- B789
- Flights observed
- 82
- Distinct callsigns
- 15
- Country
- CN
- Last broadcast
- 18h ago
Last known position
Country allocation
The ICAO 24-bit address 78198D 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 |
|---|---|---|---|
| CSN690 | China Southern Airlines | 13 | 2026-05-25 |
| CSN689 | China Southern Airlines | 12 | 2026-05-24 |
| CSN654 | China Southern Airlines | 11 | 2026-05-12 |
| CSN653 | China Southern Airlines | 10 | 2026-05-12 |
| CSN338 | China Southern Airlines | 8 | 2026-05-22 |
| CSN633 | China Southern Airlines | 5 | 2026-05-27 |
| CSN337 | China Southern Airlines | 5 | 2026-05-22 |
| CSN8066 | China Southern Airlines | 4 | 2026-05-15 |
| CSN634 | China Southern Airlines | 4 | 2026-05-28 |
| CSN392 | China Southern Airlines | 2 | 2026-04-24 |
| CSN391 | China Southern Airlines | 2 | 2026-04-24 |
| CSN3082 | China Southern Airlines | 2 | 2026-05-29 |
| CSN8065 | China Southern Airlines | 1 | 2026-04-29 |
| CSN3526 | China Southern Airlines | 1 | 2026-05-06 |
| CSN3525 | China Southern Airlines | 1 | 2026-05-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CSN3082 | BKK → CAN | May 29, 09:05 UTC | May 29, 10:35 UTC | 1h 30m |
| 2026-05-28 | CSN634 | NBO → CAN | May 28, 15:05 UTC | May 29, 06:55 UTC | 15h 50m |
| 2026-05-27 | CSN633 | CAN → NBO | May 27, 17:50 UTC | May 27, 22:05 UTC | 4h 15m |
| 2026-05-26 | CSN3082 | BKK → CAN | May 26, 09:09 UTC | May 26, 09:45 UTC | 35m |
| 2026-05-25 | CSN690 | LGW → CAN | May 25, 11:20 UTC | May 26, 07:05 UTC | 19h 44m |
| 2026-05-25 | CSN690 | LGW → CAN | May 25, 11:10 UTC | May 26, 07:05 UTC | 19h 54m |
| 2026-05-24 | CSN689 | CAN → LGW | May 24, 23:45 UTC | May 25, 05:10 UTC | 5h 25m |
| 2026-05-22 | CSN338 | ICN → CAN | May 22, 07:05 UTC | May 22, 07:30 UTC | 25m |
| 2026-05-22 | CSN337 | CAN → ICN | May 22, 04:50 UTC | May 22, 05:30 UTC | 40m |
| 2026-05-21 | CSN690 | LGW → CAN | May 21, 10:40 UTC | May 21, 14:40 UTC | 4h 0m |
| 2026-05-20 | CSN689 | CAN → LGW | May 20, 22:10 UTC | May 21, 05:10 UTC | 7h 0m |
| 2026-05-20 | CSN689 | CAN → LGW | May 20, 06:30 UTC | May 21, 05:10 UTC | 22h 40m |
| 2026-05-20 | CSN337 | CAN → ICN | May 20, 04:10 UTC | May 20, 04:45 UTC | 36m |
| 2026-05-18 | CSN690 | LGW → CAN | May 18, 11:05 UTC | May 18, 17:25 UTC | 6h 20m |
| 2026-05-17 | CSN689 | CAN → LGW | May 17, 23:50 UTC | May 18, 05:05 UTC | 5h 15m |
| 2026-05-16 | CSN338 | ICN → CAN | May 16, 06:31 UTC | May 16, 06:55 UTC | 25m |
| 2026-05-16 | CSN337 | CAN → ICN | May 16, 04:05 UTC | May 16, 04:35 UTC | 30m |
| 2026-05-15 | CSN8066 | IST → CAN | May 15, 12:30 UTC | May 15, 14:05 UTC | 1h 35m |
| 2026-05-14 | CSN3525 | CAN → SHA | May 14, 05:20 UTC | May 14, 05:30 UTC | 10m |
| 2026-05-12 | CSN654 | LGW → CGO | May 12, 20:35 UTC | May 13, 02:45 UTC | 6h 10m |
| 2026-05-12 | CSN653 | CGO → LGW | May 12, 09:45 UTC | May 12, 16:45 UTC | 7h 0m |
| 2026-05-11 | CSN653 | CGO → LGW | May 11, 13:20 UTC | May 12, 13:15 UTC | 23h 56m |
| 2026-05-11 | CSN8066 | IST → CAN | May 11, 12:40 UTC | May 12, 10:30 UTC | 21h 51m |
| 2026-05-11 | CSN8066 | IST → CAN | May 11, 01:00 UTC | May 11, 14:05 UTC | 13h 5m |
| 2026-05-09 | CSN634 | NBO → CAN | May 9, 17:10 UTC | May 9, 18:25 UTC | 1h 15m |
| 2026-05-08 | CSN633 | CAN → NBO | May 8, 19:35 UTC | May 8, 21:15 UTC | 1h 40m |
| 2026-05-08 | CSN338 | ICN → CAN | May 8, 06:59 UTC | May 8, 07:34 UTC | 35m |
| 2026-05-07 | CSN634 | NBO → CAN | May 7, 16:50 UTC | May 8, 05:20 UTC | 12h 30m |
| 2026-05-07 | CSN633 | CAN → NBO | May 7, 03:15 UTC | May 7, 03:25 UTC | 10m |
| 2026-05-06 | CSN633 | CAN → NBO | May 6, 18:40 UTC | May 6, 22:15 UTC | 3h 35m |
| 2026-05-06 | CSN3526 | SHA → CAN | May 6, 10:55 UTC | May 6, 11:05 UTC | 10m |
| 2026-05-04 | CSN690 | LGW → CAN | May 4, 10:50 UTC | May 4, 16:55 UTC | 6h 5m |
| 2026-05-03 | CSN689 | CAN → LGW | May 3, 22:25 UTC | May 4, 05:50 UTC | 7h 25m |
| 2026-05-03 | CSN654 | LGW → CGO | May 3, 02:05 UTC | May 4, 00:15 UTC | 22h 9m |
| 2026-05-02 | CSN654 | LGW → CGO | May 2, 23:20 UTC | May 3, 22:30 UTC | 23h 9m |
| 2026-05-02 | CSN654 | LGW → CGO | May 2, 20:30 UTC | May 3, 02:45 UTC | 6h 15m |
| 2026-05-02 | CSN653 | CGO → LGW | May 2, 10:15 UTC | May 2, 16:55 UTC | 6h 40m |
| 2026-05-01 | CSN653 | CGO → LGW | May 1, 16:00 UTC | May 2, 15:15 UTC | 23h 15m |
| 2026-05-01 | CSN690 | LGW → CAN | May 1, 11:20 UTC | May 2, 10:40 UTC | 23h 20m |
| 2026-05-01 | CSN690 | LGW → CAN | May 1, 10:15 UTC | May 1, 16:45 UTC | 6h 30m |
| 2026-04-30 | CSN689 | CAN → LGW | Apr 30, 22:25 UTC | May 1, 05:20 UTC | 6h 55m |
| 2026-04-30 | CSN338 | ICN → CAN | Apr 30, 09:25 UTC | Apr 30, 09:35 UTC | 10m |
| 2026-04-30 | CSN338 | ICN → CAN | Apr 30, 06:25 UTC | Apr 30, 07:10 UTC | 45m |
| 2026-04-29 | CSN8066 | IST → CAN | Apr 29, 12:30 UTC | Apr 30, 04:25 UTC | 15h 54m |
| 2026-04-29 | CSN8065 | CAN → IST | Apr 29, 02:35 UTC | Apr 29, 03:10 UTC | 35m |
| 2026-04-27 | CSN690 | LGW → CAN | Apr 27, 11:10 UTC | Apr 27, 17:25 UTC | 6h 15m |
| 2026-04-26 | CSN689 | CAN → LGW | Apr 26, 22:30 UTC | Apr 27, 05:20 UTC | 6h 50m |
| 2026-04-25 | CSN338 | ICN → CAN | Apr 25, 06:30 UTC | Apr 25, 07:05 UTC | 35m |
| 2026-04-24 | CSN392 | DAC → CAN | Apr 24, 17:35 UTC | Apr 25, 04:30 UTC | 10h 55m |
| 2026-04-24 | CSN391 | CAN → DAC | Apr 24, 12:45 UTC | Apr 24, 16:10 UTC | 3h 25m |
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-20EW page for operator, model, and routing details .