sensors Mode-S transponder
7815A1
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-304N · AIRBUS A-350-900
- Hex
- 7815A1
- Octal
- 36012641
- Decimal
- 7,869,857
- Country
- CN
- Tail
- B-304N
- Type
- A359
- Flights observed
- 108
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 15h ago
Last known position
Country allocation
The ICAO 24-bit address 7815A1 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 |
|---|---|---|---|
| CES243 | China Eastern Airlines | 15 | 2026-05-13 |
| CES244 | China Eastern Airlines | 14 | 2026-05-14 |
| CES785 | China Eastern Airlines | 8 | 2026-05-28 |
| CES786 | China Eastern Airlines | 7 | 2026-05-29 |
| CES262 | - | 6 | 2026-05-28 |
| CES223 | China Eastern Airlines | 6 | 2026-05-23 |
| CES787 | China Eastern Airlines | 5 | 2026-05-04 |
| CES788 | China Eastern Airlines | 4 | 2026-05-04 |
| CES752 | - | 4 | 2026-05-10 |
| CES751 | - | 4 | 2026-05-10 |
| CES562 | China Eastern Airlines | 4 | 2026-04-20 |
| CES561 | China Eastern Airlines | 4 | 2026-04-19 |
| CES224 | China Eastern Airlines | 4 | 2026-05-24 |
| CES217 | China Eastern Airlines | 4 | 2026-05-17 |
| CES709 | China Eastern Airlines | 3 | 2026-04-20 |
| CES250 | China Eastern Airlines | 3 | 2026-04-23 |
| CES581 | China Eastern Airlines | 2 | 2026-05-25 |
| CES261 | - | 2 | 2026-05-27 |
| CES218 | China Eastern Airlines | 2 | 2026-05-18 |
| CES710 | China Eastern Airlines | 1 | 2026-04-21 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CES786 | VCE → PVG | May 29, 09:45 UTC | May 29, 12:35 UTC | 2h 50m |
| 2026-05-28 | CES785 | PVG → VCE | May 28, 18:55 UTC | May 29, 04:50 UTC | 9h 55m |
| 2026-05-28 | CES785 | PVG → VCE | May 28, 06:50 UTC | May 29, 04:50 UTC | 22h 0m |
| 2026-05-28 | CES785 | PVG → VCE | May 28, 03:25 UTC | May 29, 02:15 UTC | 22h 50m |
| 2026-05-28 | CES262 | - | May 28, 00:20 UTC | May 28, 22:55 UTC | 22h 35m |
| 2026-05-27 | CES262 | - | May 27, 22:20 UTC | May 28, 19:05 UTC | 20h 45m |
| 2026-05-27 | CES262 | - | May 27, 20:30 UTC | May 28, 19:05 UTC | 22h 35m |
| 2026-05-27 | CES261 | - | May 27, 05:45 UTC | May 27, 16:55 UTC | 11h 11m |
| 2026-05-25 | CES582 | YVR → PVG | May 25, 19:54 UTC | May 26, 06:10 UTC | 10h 15m |
| 2026-05-25 | CES581 | PVG → YVR | May 25, 06:50 UTC | May 25, 15:50 UTC | 9h 0m |
| 2026-05-24 | CES581 | PVG → YVR | May 24, 17:30 UTC | May 25, 15:50 UTC | 22h 20m |
| 2026-05-24 | CES224 | CAI → PVG | May 24, 12:20 UTC | May 25, 08:15 UTC | 19h 55m |
| 2026-05-24 | CES224 | CAI → PVG | May 24, 11:40 UTC | May 25, 08:15 UTC | 20h 35m |
| 2026-05-23 | CES223 | PVG → CAI | May 23, 23:10 UTC | May 24, 05:20 UTC | 6h 10m |
| 2026-05-20 | CES524 | NRT → PVG | May 20, 11:05 UTC | May 20, 12:30 UTC | 1h 25m |
| 2026-05-20 | CES523 | PVG → NRT | May 20, 03:40 UTC | May 20, 05:05 UTC | 1h 26m |
| 2026-05-18 | CES218 | GVA → PVG | May 18, 10:25 UTC | May 18, 19:55 UTC | 9h 29m |
| 2026-05-17 | CES217 | PVG → GVA | May 17, 22:20 UTC | May 18, 05:20 UTC | 7h 0m |
| 2026-05-16 | CES224 | CAI → PVG | May 16, 11:41 UTC | May 16, 17:40 UTC | 6h 0m |
| 2026-05-15 | CES223 | PVG → CAI | May 15, 12:40 UTC | May 16, 05:05 UTC | 16h 24m |
| 2026-05-15 | CES223 | PVG → CAI | May 15, 09:45 UTC | May 16, 05:05 UTC | 19h 19m |
| 2026-05-14 | CES244 | MXP → PVG | May 14, 12:20 UTC | May 15, 07:00 UTC | 18h 40m |
| 2026-05-14 | CES244 | MXP → PVG | May 14, 11:45 UTC | May 15, 07:00 UTC | 19h 15m |
| 2026-05-13 | CES243 | PVG → MXP | May 13, 22:25 UTC | May 14, 05:35 UTC | 7h 10m |
| 2026-05-12 | CES244 | MXP → PVG | May 12, 11:30 UTC | May 12, 17:50 UTC | 6h 20m |
| 2026-05-12 | CES243 | PVG → MXP | May 12, 02:45 UTC | May 12, 06:25 UTC | 3h 40m |
| 2026-05-10 | CES752 | - | May 10, 19:40 UTC | May 11, 02:05 UTC | 6h 25m |
| 2026-05-10 | CES751 | - | May 10, 09:00 UTC | May 10, 16:20 UTC | 7h 20m |
| 2026-05-08 | CES218 | GVA → PVG | May 8, 10:19 UTC | May 8, 16:25 UTC | 6h 5m |
| 2026-05-07 | CES217 | PVG → GVA | May 7, 19:05 UTC | May 8, 05:39 UTC | 10h 35m |
| 2026-05-07 | CES217 | PVG → GVA | May 7, 06:30 UTC | May 8, 05:39 UTC | 23h 10m |
| 2026-05-07 | CES217 | PVG → GVA | May 7, 03:05 UTC | May 8, 02:14 UTC | 23h 10m |
| 2026-05-07 | CES262 | - | May 7, 00:20 UTC | May 7, 22:54 UTC | 22h 35m |
| 2026-05-06 | CES262 | - | May 6, 22:20 UTC | May 7, 21:20 UTC | 23h 0m |
| 2026-05-06 | CES262 | - | May 6, 20:45 UTC | May 7, 19:25 UTC | 22h 40m |
| 2026-05-06 | CES261 | - | May 6, 05:30 UTC | May 6, 17:15 UTC | 11h 45m |
| 2026-05-04 | CES788 | FCO → PVG | May 4, 19:40 UTC | May 5, 02:01 UTC | 6h 20m |
| 2026-05-04 | CES787 | PVG → FCO | May 4, 06:15 UTC | May 4, 17:10 UTC | 10h 55m |
| 2026-05-03 | CES787 | PVG → FCO | May 3, 15:25 UTC | May 4, 14:15 UTC | 22h 50m |
| 2026-05-03 | CES786 | VCE → PVG | May 3, 12:20 UTC | May 4, 10:30 UTC | 22h 10m |
| 2026-05-03 | CES786 | VCE → PVG | May 3, 10:20 UTC | May 4, 10:15 UTC | 23h 55m |
| 2026-05-03 | CES786 | VCE → PVG | May 3, 09:50 UTC | May 4, 06:30 UTC | 20h 40m |
| 2026-05-02 | CES785 | PVG → VCE | May 2, 18:45 UTC | May 3, 05:00 UTC | 10h 14m |
| 2026-05-02 | CES785 | PVG → VCE | May 2, 09:00 UTC | May 3, 05:00 UTC | 19h 59m |
| 2026-05-02 | CES785 | PVG → VCE | May 2, 07:10 UTC | May 3, 05:00 UTC | 21h 49m |
| 2026-05-01 | CES244 | MXP → PVG | May 1, 11:50 UTC | May 2, 05:25 UTC | 17h 35m |
| 2026-04-30 | CES243 | PVG → MXP | Apr 30, 19:40 UTC | May 1, 05:50 UTC | 10h 10m |
| 2026-04-30 | CES243 | PVG → MXP | Apr 30, 01:30 UTC | Apr 30, 23:45 UTC | 22h 15m |
| 2026-04-29 | CES788 | FCO → PVG | Apr 29, 22:20 UTC | Apr 30, 20:00 UTC | 21h 40m |
| 2026-04-29 | CES788 | FCO → PVG | Apr 29, 20:20 UTC | Apr 30, 20:00 UTC | 23h 40m |
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-304N page for operator, model, and routing details .