Apparatus

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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
No current signal · last broadcast 1h ago
Flights observed
182
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7815A1.

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 - 25 2026-07-12
CES244 China Eastern Airlines 23 2026-07-06
CES787 China Eastern Airlines 8 2026-06-01
CES785 China Eastern Airlines 8 2026-05-28
CES217 - 8 2026-07-09
CES786 China Eastern Airlines 7 2026-05-29
CES752 - 7 2026-06-04
CES751 - 7 2026-06-04
CES250 China Eastern Airlines 7 2026-07-08
CES249 China Eastern Airlines 7 2026-07-07
CES788 China Eastern Airlines 6 2026-06-01
CES262 - 6 2026-05-28
CES223 China Eastern Airlines 6 2026-05-23
CES218 - 6 2026-07-10
CES562 - 5 2026-06-28
CES561 China Eastern Airlines 5 2026-06-27
CES7236 - 4 2026-07-05
CES7235 - 4 2026-07-04
CES709 China Eastern Airlines 4 2026-06-25
CES5350 - 4 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CES244D - Jul 13, 12:10 UTCJul 14, 09:10 UTC21h 0m
2026-07-12 CES243 - Jul 12, 20:05 UTCJul 13, 06:15 UTC10h 10m
2026-07-12 CES243 - Jul 12, 05:25 UTCJul 13, 04:15 UTC22h 50m
2026-07-12 CES243 - Jul 12, 03:01 UTCJul 13, 02:15 UTC23h 15m
2026-07-11 CES6049 - Jul 11, 06:20 UTCJul 11, 09:10 UTC2h 50m
2026-07-10 CES6049 - Jul 10, 12:20 UTCJul 11, 09:10 UTC20h 50m
2026-07-10 CES218 - Jul 10, 10:20 UTCJul 11, 09:10 UTC22h 50m
2026-07-10 CES218 - Jul 10, 10:10 UTCJul 11, 06:40 UTC20h 30m
2026-07-09 CES217 - Jul 9, 22:40 UTCJul 10, 05:45 UTC7h 5m
2026-07-08 CES250 BCN → PVG Jul 8, 09:25 UTCJul 8, 14:05 UTC4h 40m
2026-07-07 CES249 PVG → BCN Jul 7, 12:20 UTCJul 8, 05:30 UTC17h 10m
2026-07-07 CES249 PVG → BCN Jul 7, 08:50 UTCJul 8, 05:30 UTC20h 40m
2026-07-06 CES244 MXP → PVG Jul 6, 18:30 UTCJul 7, 13:25 UTC18h 55m
2026-07-06 CES244 MXP → PVG Jul 6, 16:20 UTCJul 7, 13:25 UTC21h 5m
2026-07-06 CES244 MXP → PVG Jul 6, 14:20 UTCJul 7, 13:25 UTC23h 5m
2026-07-06 CES244 MXP → PVG Jul 6, 12:45 UTCJul 7, 09:05 UTC20h 20m
2026-07-05 CES243 PVG → MXP Jul 5, 22:50 UTCJul 6, 05:50 UTC7h 0m
2026-07-05 CES243 PVG → MXP Jul 5, 05:10 UTCJul 6, 04:15 UTC23h 5m
2026-07-05 CES7236 - Jul 5, 02:40 UTCJul 6, 02:10 UTC23h 30m
2026-07-05 CES7236 - Jul 5, 00:20 UTCJul 5, 23:35 UTC23h 15m
2026-07-04 CES7236 - Jul 4, 22:35 UTCJul 5, 05:55 UTC7h 20m
2026-07-04 CES7235 - Jul 4, 08:15 UTCJul 4, 18:55 UTC10h 40m
2026-07-03 CES7235 - Jul 3, 17:10 UTCJul 4, 14:50 UTC21h 40m
2026-07-03 CES244 MXP → PVG Jul 3, 12:20 UTCJul 4, 11:55 UTC23h 35m
2026-07-03 CES244 MXP → PVG Jul 3, 11:40 UTCJul 4, 08:30 UTC20h 50m
2026-07-02 CES243 PVG → MXP Jul 2, 11:45 UTCJul 3, 05:55 UTC18h 10m
2026-07-02 CES243 PVG → MXP Jul 2, 09:15 UTCJul 3, 05:55 UTC20h 40m
2026-07-02 CES567 - Jul 2, 06:55 UTCJul 2, 07:15 UTC20m
2026-07-01 CES522 - Jul 1, 10:20 UTCJul 2, 04:20 UTC18h 0m
2026-07-01 CES522 - Jul 1, 10:00 UTCJul 2, 04:20 UTC18h 20m
2026-07-01 CES521 - Jul 1, 06:40 UTCJul 1, 08:15 UTC1h 35m
2026-06-29 CES250 BCN → PVG Jun 29, 10:20 UTCJun 29, 17:45 UTC7h 25m
2026-06-28 CES249 PVG → BCN Jun 28, 10:55 UTCJun 29, 05:15 UTC18h 20m
2026-06-28 CES249 PVG → BCN Jun 28, 08:39 UTCJun 29, 05:15 UTC20h 35m
2026-06-28 CES249 PVG → BCN Jun 28, 02:20 UTCJun 29, 02:14 UTC23h 55m
2026-06-28 CES562 - Jun 28, 01:29 UTCJun 28, 22:15 UTC20h 45m
2026-06-27 CES561 PVG → SYD Jun 27, 21:29 UTCJun 27, 23:25 UTC1h 55m
2026-06-26 CES710 - Jun 26, 09:30 UTCJun 26, 17:15 UTC7h 45m
2026-06-25 CES709 PVG → MAD Jun 25, 18:24 UTCJun 25, 18:39 UTC15m
2026-06-24 CES5350 - Jun 24, 11:39 UTCJun 24, 11:50 UTC10m
2026-06-24 CES5341 - Jun 24, 08:35 UTCJun 24, 08:45 UTC10m
2026-06-22 CES5350 - Jun 22, 12:00 UTCJun 22, 12:10 UTC10m
2026-06-19 CES5350 - Jun 19, 12:44 UTCJun 19, 12:54 UTC10m
2026-06-13 CES7236 HAN → PVG Jun 13, 22:15 UTCJun 14, 05:45 UTC7h 30m
2026-06-13 CES7235 PVG → HAN Jun 13, 11:25 UTCJun 13, 18:55 UTC7h 30m
2026-06-12 CES7235 PVG → HAN Jun 12, 14:20 UTCJun 13, 14:15 UTC23h 54m
2026-06-12 CES250 BCN → PVG Jun 12, 12:20 UTCJun 13, 12:00 UTC23h 39m
2026-06-12 CES250 BCN → PVG Jun 12, 09:45 UTCJun 12, 14:30 UTC4h 45m
2026-06-11 CES249 PVG → BCN Jun 11, 18:20 UTCJun 12, 05:00 UTC10h 41m
2026-06-09 CES5350 SZX → SHA Jun 9, 12:00 UTCJun 9, 12:10 UTC10m

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 .

Mode-S 7815A1 frequently asked

What is Mode-S code 7815A1?
7815A1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-304N.
Where is Mode-S 7815A1 registered?
Mode-S code 7815A1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7815A1 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7815A1, octal 36012641, decimal 7,869,857.
What flights does 7815A1 operate?
Mode-S 7815A1 has broadcast 20 distinct callsigns, including CES243, CES244, CES787, CES785, CES217.