Apparatus

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sensors Mode-S transponder

7816A2

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-20AJ · BOEING 787-9 Dreamliner

Hex
7816A2
Octal
36013242
Decimal
7,870,114
Country
CN
Tail
B-20AJ
Type
B789
No current signal · last broadcast 26m ago
Flights observed
205
Distinct callsigns
19
Country
CN
Last broadcast
26m ago

Last known position

Most recent position reported by Mode-S 7816A2.

Country allocation

The ICAO 24-bit address 7816A2 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 19 distinct

Callsign Airline Flights Last seen
CES737 - 30 2026-07-10
CES738 - 26 2026-07-11
CSH871 Shanghai Airlines 23 2026-07-03
CES740 - 18 2026-07-13
CSH872 - 17 2026-07-03
CES739 - 17 2026-07-12
CSH869 Shanghai Airlines 15 2026-06-18
CSH885 - 10 2026-06-17
CSH870 Shanghai Airlines 10 2026-06-19
CSH897 - 8 2026-07-08
CSH898 - 7 2026-07-09
CSH895 - 6 2026-06-12
CSH886 Shanghai Airlines 4 2026-05-31
CSH821 - 4 2026-06-16
CSH896 Shanghai Airlines 3 2026-05-17
CSH891 Shanghai Airlines 2 2026-06-19
CSH822 - 2 2026-06-16
CES543 China Eastern Airlines 2 2026-06-10
CSH892 Shanghai Airlines 1 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CES740 - Jul 13, 11:40 UTCJul 14, 06:30 UTC18h 50m
2026-07-12 CES739 - Jul 12, 17:45 UTCJul 13, 02:50 UTC9h 5m
2026-07-11 CES738 - Jul 11, 01:10 UTCJul 11, 10:20 UTC9h 10m
2026-07-10 CES737 - Jul 10, 13:30 UTCJul 10, 23:00 UTC9h 30m
2026-07-10 CES737 - Jul 10, 00:35 UTCJul 10, 23:00 UTC22h 25m
2026-07-09 CSH898 - Jul 9, 18:50 UTCJul 10, 13:45 UTC18h 55m
2026-07-08 CSH897 - Jul 8, 21:00 UTCJul 9, 15:50 UTC18h 50m
2026-07-08 CSH897 - Jul 8, 19:25 UTCJul 9, 15:50 UTC20h 25m
2026-07-08 CES740 - Jul 8, 16:00 UTCJul 9, 14:30 UTC22h 30m
2026-07-08 CES740 MEL → PVG Jul 8, 11:45 UTCJul 9, 10:20 UTC22h 35m
2026-07-07 CES739 - Jul 7, 08:30 UTCJul 8, 02:05 UTC17h 35m
2026-07-06 CES740 MEL → PVG Jul 6, 15:35 UTCJul 7, 06:55 UTC15h 20m
2026-07-06 CES740 MEL → PVG Jul 6, 11:45 UTCJul 7, 06:55 UTC19h 10m
2026-07-05 CES739 - Jul 5, 08:15 UTCJul 6, 02:20 UTC18h 5m
2026-07-05 CES739 - Jul 5, 05:05 UTCJul 6, 02:20 UTC21h 15m
2026-07-05 CES738 - Jul 5, 01:30 UTCJul 5, 22:55 UTC21h 25m
2026-07-04 CES737 - Jul 4, 14:00 UTCJul 4, 22:55 UTC8h 55m
2026-07-04 CES737 - Jul 4, 03:45 UTCJul 4, 22:55 UTC19h 10m
2026-07-04 CES737 - Jul 4, 00:35 UTCJul 4, 22:55 UTC22h 20m
2026-07-03 CSH872 - Jul 3, 22:35 UTCJul 4, 22:30 UTC23h 55m
2026-07-03 CSH872 - Jul 3, 21:30 UTCJul 4, 19:25 UTC21h 55m
2026-07-03 CSH872 - Jul 3, 16:45 UTCJul 3, 18:45 UTC2h 0m
2026-07-03 CSH871 PVG → MRS Jul 3, 09:05 UTCJul 3, 10:50 UTC1h 45m
2026-07-03 CSH871 PVG → MRS Jul 3, 05:05 UTCJul 3, 06:00 UTC55m
2026-07-02 CSH871 PVG → MRS Jul 2, 19:15 UTCJul 3, 05:00 UTC9h 45m
2026-07-02 CSH871 PVG → MRS Jul 2, 08:35 UTCJul 3, 05:00 UTC20h 25m
2026-07-01 CES740 MEL → PVG Jul 1, 11:50 UTCJul 2, 06:25 UTC18h 35m
2026-06-30 CES739 - Jun 30, 17:20 UTCJul 1, 02:10 UTC8h 50m
2026-06-30 CES739 - Jun 30, 00:45 UTCJun 30, 22:50 UTC22h 6m
2026-06-29 CSH898 - Jun 29, 20:35 UTCJun 30, 19:40 UTC23h 6m
2026-06-29 CSH898 - Jun 29, 19:24 UTCJun 30, 18:20 UTC22h 56m
2026-06-29 CSH897 - Jun 29, 06:09 UTCJun 29, 15:30 UTC9h 20m
2026-06-28 CSH897 - Jun 28, 10:44 UTCJun 29, 09:54 UTC23h 10m
2026-06-28 CES738 - Jun 28, 08:34 UTCJun 29, 06:19 UTC21h 45m
2026-06-28 CES738 - Jun 28, 08:29 UTCJun 29, 06:19 UTC21h 50m
2026-06-28 CES738 - Jun 28, 01:25 UTCJun 28, 10:44 UTC9h 20m
2026-06-27 CES737 - Jun 27, 07:15 UTCJun 27, 23:04 UTC15h 50m
2026-06-27 CES737 - Jun 27, 03:49 UTCJun 27, 23:04 UTC19h 15m
2026-06-27 CES737 - Jun 27, 00:34 UTCJun 27, 23:04 UTC22h 30m
2026-06-26 CSH872 - Jun 26, 22:34 UTCJun 27, 22:29 UTC23h 55m
2026-06-26 CSH872 - Jun 26, 21:35 UTCJun 27, 19:19 UTC21h 45m
2026-06-26 CSH872 - Jun 26, 16:44 UTCJun 26, 18:34 UTC1h 50m
2026-06-26 CSH871 PVG → MRS Jun 26, 08:54 UTCJun 26, 10:44 UTC1h 50m
2026-06-25 CSH871 PVG → MRS Jun 25, 10:39 UTCJun 26, 05:10 UTC18h 30m
2026-06-25 CSH871 PVG → MRS Jun 25, 08:34 UTCJun 26, 05:10 UTC20h 35m
2026-06-25 CSH871 PVG → MRS Jun 25, 05:20 UTCJun 26, 04:30 UTC23h 10m
2026-06-25 CES738 - Jun 25, 01:30 UTCJun 25, 22:59 UTC21h 30m
2026-06-24 CES737 - Jun 24, 03:50 UTCJun 24, 22:14 UTC18h 25m
2026-06-24 CES737 - Jun 24, 00:34 UTCJun 24, 22:14 UTC21h 40m
2026-06-23 CSH872 - Jun 23, 22:34 UTCJun 24, 22:14 UTC23h 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-20AJ page for operator, model, and routing details .

Mode-S 7816A2 frequently asked

What is Mode-S code 7816A2?
7816A2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-20AJ.
Where is Mode-S 7816A2 registered?
Mode-S code 7816A2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7816A2 broadcasting right now?
No active broadcast right now. Last signal was 26m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7816A2, octal 36013242, decimal 7,870,114.
What flights does 7816A2 operate?
Mode-S 7816A2 has broadcast 19 distinct callsigns, including CES737, CES738, CSH871, CES740, CSH872.