sensors Mode-S transponder
781F7F
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32EN · AIRBUS A-320neo
- Hex
- 781F7F
- Octal
- 36017577
- Decimal
- 7,872,383
- Country
- CN
- Tail
- B-32EN
- Type
- A20N
- Flights observed
- 81
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- Jul 26, 12:40 UTC
Last known position
Country allocation
The ICAO 24-bit address 781F7F 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 |
|---|---|---|---|
| CES5095 | - | 20 | 2026-07-17 |
| CES5096 | - | 15 | 2026-07-18 |
| CES897 | China Eastern Airlines | 5 | 2026-07-26 |
| CES2040 | - | 4 | 2026-06-13 |
| CES2039 | - | 4 | 2026-06-13 |
| CES898 | China Eastern Airlines | 3 | 2026-07-26 |
| CES894 | China Eastern Airlines | 3 | 2026-04-15 |
| CES893 | China Eastern Airlines | 2 | 2026-04-15 |
| CES6342 | China Eastern Airlines | 2 | 2026-06-11 |
| CES6341 | China Eastern Airlines | 2 | 2026-06-11 |
| CES9892 | - | 1 | 2026-04-17 |
| CES6903 | China Eastern Airlines | 1 | 2026-05-20 |
| CES6772 | - | 1 | 2026-06-21 |
| CES6505 | - | 1 | 2026-05-24 |
| CES6491 | China Eastern Airlines | 1 | 2026-05-26 |
| CES6340 | China Eastern Airlines | 1 | 2026-06-08 |
| CES6098 | - | 1 | 2026-06-17 |
| CES6097 | - | 1 | 2026-06-17 |
| CES5666 | - | 1 | 2026-05-09 |
| CES5602 | China Eastern Airlines | 1 | 2026-06-07 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CES898 | SIN → HGH | Jul 26, 08:20 UTC | Jul 26, 12:40 UTC | 4h 20m |
| 2026-07-26 | CES897 | HGH → SIN | Jul 26, 02:35 UTC | Jul 26, 06:25 UTC | 3h 50m |
| 2026-07-25 | CES897 | HGH → SIN | Jul 25, 04:15 UTC | Jul 26, 03:45 UTC | 23h 30m |
| 2026-07-25 | CES5131 | HGH → PKX | Jul 25, 01:05 UTC | Jul 25, 01:20 UTC | 15m |
| 2026-07-18 | CES5096 | - | Jul 18, 07:55 UTC | Jul 18, 11:35 UTC | 3h 40m |
| 2026-07-17 | CES5095 | - | Jul 17, 11:10 UTC | Jul 18, 05:40 UTC | 18h 31m |
| 2026-07-17 | CES5096 | - | Jul 17, 07:44 UTC | Jul 17, 08:00 UTC | 15m |
| 2026-07-17 | CES5095 | - | Jul 17, 02:10 UTC | Jul 17, 06:00 UTC | 3h 50m |
| 2026-07-12 | CES5096 | - | Jul 12, 11:40 UTC | Jul 12, 15:30 UTC | 3h 50m |
| 2026-07-12 | CES5095 | - | Jul 12, 06:35 UTC | Jul 12, 10:05 UTC | 3h 30m |
| 2026-07-09 | CES5096 | - | Jul 9, 07:55 UTC | Jul 9, 23:10 UTC | 15h 15m |
| 2026-07-08 | CES5095 | - | Jul 8, 10:50 UTC | Jul 9, 06:05 UTC | 19h 15m |
| 2026-07-08 | CES5095 | - | Jul 8, 07:50 UTC | Jul 9, 06:05 UTC | 22h 15m |
| 2026-07-08 | CES5095 | - | Jul 8, 02:05 UTC | Jul 8, 06:10 UTC | 4h 5m |
| 2026-07-05 | CES898 | - | Jul 5, 08:05 UTC | Jul 5, 11:55 UTC | 3h 50m |
| 2026-07-04 | CES897 | - | Jul 4, 17:50 UTC | Jul 5, 06:40 UTC | 12h 50m |
| 2026-07-04 | CES897 | - | Jul 4, 11:20 UTC | Jul 5, 06:40 UTC | 19h 20m |
| 2026-07-04 | CES5096 | - | Jul 4, 08:05 UTC | Jul 5, 06:40 UTC | 22h 35m |
| 2026-07-04 | CES5095 | - | Jul 4, 06:00 UTC | Jul 4, 06:30 UTC | 30m |
| 2026-07-04 | CES5095 | - | Jul 4, 03:00 UTC | Jul 4, 03:15 UTC | 15m |
| 2026-07-02 | CES5096 | - | Jul 2, 09:35 UTC | Jul 2, 23:40 UTC | 14h 5m |
| 2026-07-02 | CES5096 | - | Jul 2, 08:05 UTC | Jul 2, 08:15 UTC | 10m |
| 2026-07-02 | CES5095 | - | Jul 2, 06:25 UTC | Jul 2, 06:51 UTC | 26m |
| 2026-07-01 | CES5095 | - | Jul 1, 12:25 UTC | Jul 2, 04:25 UTC | 16h 0m |
| 2026-07-01 | CES5096 | - | Jul 1, 09:10 UTC | Jul 2, 04:25 UTC | 19h 15m |
| 2026-07-01 | CES5095 | - | Jul 1, 03:35 UTC | Jul 1, 07:30 UTC | 3h 55m |
| 2026-06-29 | CES898 | - | Jun 29, 19:05 UTC | Jun 29, 22:55 UTC | 3h 50m |
| 2026-06-29 | CES897 | - | Jun 29, 14:39 UTC | Jun 29, 17:40 UTC | 3h 0m |
| 2026-06-27 | CES5096 | - | Jun 27, 07:34 UTC | Jun 27, 23:29 UTC | 15h 55m |
| 2026-06-26 | CES5095 | - | Jun 26, 10:50 UTC | Jun 27, 05:55 UTC | 19h 5m |
| 2026-06-26 | CES5096 | - | Jun 26, 07:50 UTC | Jun 27, 05:55 UTC | 22h 5m |
| 2026-06-26 | CES5096 | - | Jun 26, 07:39 UTC | Jun 27, 05:44 UTC | 22h 5m |
| 2026-06-26 | CES5095 | - | Jun 26, 02:20 UTC | Jun 26, 06:15 UTC | 3h 55m |
| 2026-06-21 | CES6772 | - | Jun 21, 00:55 UTC | Jun 21, 03:49 UTC | 2h 55m |
| 2026-06-17 | CES6098 | - | Jun 17, 05:10 UTC | Jun 17, 05:30 UTC | 20m |
| 2026-06-17 | CES6097 | - | Jun 17, 02:40 UTC | Jun 17, 03:15 UTC | 35m |
| 2026-06-13 | CES5258 | - | Jun 13, 13:30 UTC | Jun 13, 13:55 UTC | 25m |
| 2026-06-13 | CES2040 | - | Jun 13, 03:20 UTC | Jun 13, 03:45 UTC | 25m |
| 2026-06-13 | CES2039 | - | Jun 13, 01:20 UTC | Jun 13, 01:40 UTC | 20m |
| 2026-06-12 | CES2040 | ICN → TAO | Jun 12, 03:05 UTC | Jun 12, 03:30 UTC | 25m |
| 2026-06-12 | CES2039 | TAO → ICN | Jun 12, 01:10 UTC | Jun 12, 01:40 UTC | 30m |
| 2026-06-11 | CES5362 | CSX → SHA | Jun 11, 11:45 UTC | Jun 11, 12:10 UTC | 25m |
| 2026-06-11 | CES6342 | HAK → PVG | Jun 11, 08:45 UTC | Jun 11, 09:00 UTC | 15m |
| 2026-06-11 | CES6341 | SHA → HAK | Jun 11, 01:45 UTC | Jun 11, 02:15 UTC | 30m |
| 2026-06-10 | CES6341 | SHA → HAK | Jun 10, 01:45 UTC | Jun 10, 02:20 UTC | 35m |
| 2026-06-09 | CES6342 | HAK → PVG | Jun 9, 07:50 UTC | Jun 9, 08:00 UTC | 10m |
| 2026-06-08 | CES6340 | SHE → SHA | Jun 8, 16:20 UTC | Jun 8, 16:45 UTC | 25m |
| 2026-06-07 | CES5602 | PVG → ZHA | Jun 7, 06:00 UTC | Jun 7, 06:15 UTC | 15m |
| 2026-05-29 | CES2034 | ICN → TAO | May 29, 05:15 UTC | May 29, 05:45 UTC | 30m |
| 2026-05-29 | CES2033 | TAO → ICN | May 29, 03:10 UTC | May 29, 03:35 UTC | 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-32EN page for operator, model, and routing details .