Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7816DE

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-20AY · BOEING 737 MAX 8

Hex
7816DE
Octal
36013336
Decimal
7,870,174
Country
CN
Tail
B-20AY
Type
B38M
No current signal · last broadcast 15h ago
Flights observed
115
Distinct callsigns
20
Country
CN
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 7816DE.

Country allocation

The ICAO 24-bit address 7816DE 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
CSH866 - 10 2026-07-05
CSH865 - 7 2026-07-04
CSH863 - 7 2026-07-04
CSH9539 Shanghai Airlines 6 2026-06-09
CSH858 Shanghai Airlines 6 2026-05-22
CSH831 - 6 2026-06-12
CSH862 - 5 2026-07-10
CSH861 - 5 2026-07-10
CSH857 - 5 2026-07-05
CSH848 Shanghai Airlines 4 2026-05-01
CSH847 Shanghai Airlines 4 2026-05-01
CSH832 Shanghai Airlines 4 2026-06-13
CSH812 - 4 2026-07-07
CSH868 Shanghai Airlines 3 2026-05-28
CSH867 Shanghai Airlines 3 2026-05-28
CSH843 Shanghai Airlines 3 2026-07-09
CSH841 - 3 2026-07-01
CSH833 Shanghai Airlines 3 2026-04-18
CSH811 - 3 2026-07-06
CSH9136 - 2 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CSH7222 - Jul 13, 06:25 UTCJul 13, 11:15 UTC4h 50m
2026-07-12 CSH7221 - Jul 12, 16:45 UTCJul 13, 04:55 UTC12h 10m
2026-07-12 CSH7223 - Jul 12, 01:20 UTCJul 12, 15:25 UTC14h 5m
2026-07-10 CSH862 - Jul 10, 18:00 UTCJul 11, 11:35 UTC17h 35m
2026-07-10 CSH861 - Jul 10, 15:50 UTCJul 10, 16:10 UTC20m
2026-07-09 CSH844 SIN → PVG Jul 9, 19:45 UTCJul 10, 12:45 UTC17h 0m
2026-07-09 CSH843 PVG → SIN Jul 9, 14:25 UTCJul 9, 18:30 UTC4h 5m
2026-07-07 CSH812 - Jul 7, 06:20 UTCJul 7, 07:30 UTC1h 10m
2026-07-06 CSH811 - Jul 6, 13:10 UTCJul 7, 04:10 UTC15h 0m
2026-07-05 CSH857 - Jul 5, 16:15 UTCJul 6, 15:30 UTC23h 15m
2026-07-05 CSH866 - Jul 5, 13:00 UTCJul 5, 17:10 UTC4h 10m
2026-07-04 CSH865 - Jul 4, 23:40 UTCJul 5, 11:30 UTC11h 50m
2026-07-04 CSH863 - Jul 4, 18:10 UTCJul 4, 22:20 UTC4h 10m
2026-07-03 CSH812 - Jul 3, 08:00 UTCJul 3, 08:55 UTC55m
2026-07-02 CSH811 - Jul 2, 19:50 UTCJul 3, 05:20 UTC9h 30m
2026-07-02 CSH843 PVG → SIN Jul 2, 05:00 UTCJul 2, 18:10 UTC13h 10m
2026-07-01 CSH841 - Jul 1, 10:45 UTCJul 1, 16:55 UTC6h 10m
2026-06-30 CSH9136 - Jun 30, 12:50 UTCJul 1, 11:15 UTC22h 25m
2026-06-30 CSH9136 - Jun 30, 04:25 UTCJun 30, 13:15 UTC8h 50m
2026-06-24 CSH9068 CGQ → PVG Jun 24, 13:34 UTCJun 24, 14:09 UTC35m
2026-06-18 CSH864 - Jun 18, 23:05 UTCJun 19, 03:05 UTC3h 59m
2026-06-18 CSH863 - Jun 18, 02:55 UTCJun 18, 21:30 UTC18h 35m
2026-06-17 CSH853 HKG → BKK Jun 17, 06:40 UTCJun 17, 14:40 UTC8h 0m
2026-06-16 CSH811 - Jun 16, 19:50 UTCJun 17, 04:30 UTC8h 40m
2026-06-16 CSH843 PVG → SIN Jun 16, 14:00 UTCJun 16, 17:49 UTC3h 50m
2026-06-13 CSH832 HKT → PVG Jun 13, 14:15 UTCJun 14, 08:50 UTC18h 35m
2026-06-13 CSH832 HKT → PVG Jun 13, 13:10 UTCJun 14, 08:50 UTC19h 40m
2026-06-13 CSH832 HKT → PVG Jun 13, 03:25 UTCJun 13, 20:15 UTC16h 49m
2026-06-12 CSH831 - Jun 12, 15:40 UTCJun 13, 15:05 UTC23h 24m
2026-06-12 CSH866 KUL → PVG Jun 12, 12:30 UTCJun 13, 03:40 UTC15h 10m
2026-06-11 CSH865 PVG → KUL Jun 11, 23:15 UTCJun 12, 11:05 UTC11h 51m
2026-06-11 CSH863 PVG → KUL Jun 11, 12:55 UTCJun 11, 21:35 UTC8h 40m
2026-06-09 CSH9539 PVG → SYX Jun 9, 03:45 UTCJun 9, 08:00 UTC4h 15m
2026-06-07 CSH9255 PVG → HAK Jun 7, 03:05 UTCJun 7, 06:35 UTC3h 30m
2026-05-30 CSH9253 SHA → HAK May 30, 10:35 UTCMay 30, 13:45 UTC3h 10m
2026-05-28 CSH868 BKI → PVG May 28, 17:45 UTCMay 28, 20:15 UTC2h 30m
2026-05-28 CSH867 PVG → BKI May 28, 13:20 UTCMay 28, 16:35 UTC3h 15m
2026-05-23 CSH814 KUL → FOC May 23, 19:25 UTCMay 24, 10:25 UTC15h 0m
2026-05-23 CSH813 FOC → KUL May 23, 13:00 UTCMay 23, 16:50 UTC3h 50m
2026-05-22 CSH858 HKT → PVG May 22, 13:35 UTCMay 23, 08:25 UTC18h 49m
2026-05-22 CSH857 PVG → HKT May 22, 11:35 UTCMay 23, 08:25 UTC20h 50m
2026-05-21 CSH857 PVG → HKT May 21, 17:35 UTCMay 22, 17:30 UTC23h 55m
2026-05-21 CSH857 PVG → HKT May 21, 16:45 UTCMay 22, 14:05 UTC21h 20m
2026-05-21 CSH857 PVG → HKT May 21, 13:35 UTCMay 22, 13:30 UTC23h 55m
2026-05-16 CSH832 HKT → PVG May 16, 13:35 UTCMay 17, 09:05 UTC19h 30m
2026-05-16 CSH831 PVG → HKT May 16, 11:55 UTCMay 17, 09:05 UTC21h 10m
2026-05-16 CSH831 PVG → HKT May 16, 06:35 UTCMay 17, 04:20 UTC21h 45m
2026-05-16 CSH831 PVG → HKT May 16, 03:10 UTCMay 16, 20:15 UTC17h 6m
2026-05-15 CSH831 PVG → HKT May 15, 15:45 UTCMay 16, 14:16 UTC22h 31m
2026-05-15 CSH866 KUL → PVG May 15, 12:30 UTCMay 16, 06:45 UTC18h 15m

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-20AY page for operator, model, and routing details .

Mode-S 7816DE frequently asked

What is Mode-S code 7816DE?
7816DE is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-20AY.
Where is Mode-S 7816DE registered?
Mode-S code 7816DE is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7816DE broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7816DE, octal 36013336, decimal 7,870,174.
What flights does 7816DE operate?
Mode-S 7816DE has broadcast 20 distinct callsigns, including CSH866, CSH865, CSH863, CSH9539, CSH858.