Apparatus

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sensors Mode-S transponder

7817D2

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30AX · AIRBUS A-320neo

Hex
7817D2
Octal
36013722
Decimal
7,870,418
Country
CN
Tail
B-30AX
Type
A20N
No current signal · last broadcast 1h ago
Flights observed
65
Distinct callsigns
16
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7817D2.

Country allocation

The ICAO 24-bit address 7817D2 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 16 distinct

Callsign Airline Flights Last seen
CES6078 - 15 2026-07-18
CES6077 - 14 2026-07-18
CES898 - 8 2026-06-26
CES897 - 8 2026-06-25
CES870 - 3 2026-06-25
CES5095 - 3 2026-06-21
CES869 - 2 2026-06-20
CES770 China Eastern Airlines 2 2026-06-02
CES769 China Eastern Airlines 2 2026-06-02
CES5096 - 2 2026-06-22
CES6112 - 1 2026-07-14
CES6098 China Eastern Airlines 1 2026-04-15
CES6097 China Eastern Airlines 1 2026-04-15
CES2236 China Eastern Airlines 1 2026-06-11
CES2070 China Eastern Airlines 1 2026-06-10
CES2069 China Eastern Airlines 1 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CES6078 - Jul 18, 09:55 UTCJul 18, 10:25 UTC30m
2026-07-18 CES6077 - Jul 18, 04:15 UTCJul 18, 08:10 UTC3h 55m
2026-07-16 CES6078 - Jul 16, 09:45 UTCJul 16, 13:40 UTC3h 55m
2026-07-16 CES6077 - Jul 16, 04:00 UTCJul 16, 08:00 UTC4h 0m
2026-07-14 CES6112 - Jul 14, 15:55 UTCJul 14, 16:20 UTC25m
2026-07-09 CES6078 - Jul 9, 09:45 UTCJul 9, 14:00 UTC4h 15m
2026-07-09 CES6077 - Jul 9, 03:30 UTCJul 9, 07:40 UTC4h 10m
2026-07-07 CES6078 - Jul 7, 09:40 UTCJul 7, 14:10 UTC4h 30m
2026-07-07 CES6077 - Jul 7, 03:45 UTCJul 7, 07:40 UTC3h 55m
2026-07-02 CES6078 - Jul 2, 09:55 UTCJul 2, 13:15 UTC3h 20m
2026-07-02 CES6077 - Jul 2, 07:40 UTCJul 2, 08:15 UTC35m
2026-06-30 CES6078 - Jun 30, 09:45 UTCJun 30, 13:50 UTC4h 5m
2026-06-30 CES6077 - Jun 30, 07:35 UTCJun 30, 08:00 UTC25m
2026-06-26 CES898 - Jun 26, 19:14 UTCJun 26, 23:15 UTC4h 0m
2026-06-25 CES897 - Jun 25, 22:34 UTCJun 26, 17:54 UTC19h 20m
2026-06-25 CES897 - Jun 25, 21:50 UTCJun 26, 17:54 UTC20h 5m
2026-06-25 CES870 - Jun 25, 16:55 UTCJun 26, 14:59 UTC22h 5m
2026-06-25 CES870 - Jun 25, 16:29 UTCJun 25, 22:45 UTC6h 15m
2026-06-22 CES5096 - Jun 22, 07:34 UTCJun 22, 21:54 UTC14h 20m
2026-06-21 CES5095 - Jun 21, 11:55 UTCJun 22, 06:05 UTC18h 10m
2026-06-21 CES5095 - Jun 21, 08:35 UTCJun 22, 06:05 UTC21h 30m
2026-06-21 CES898 - Jun 21, 08:15 UTCJun 22, 06:05 UTC21h 50m
2026-06-20 CES869 - Jun 20, 16:09 UTCJun 21, 05:44 UTC13h 35m
2026-06-18 CES6078 - Jun 18, 09:50 UTCJun 18, 13:50 UTC4h 0m
2026-06-18 CES6077 - Jun 18, 07:55 UTCJun 18, 08:05 UTC10m
2026-06-16 CES6078 - Jun 16, 10:00 UTCJun 16, 13:55 UTC3h 55m
2026-06-16 CES6077 - Jun 16, 07:25 UTCJun 16, 07:34 UTC10m
2026-06-13 CES6078 SIN → NGB Jun 13, 10:00 UTCJun 13, 14:05 UTC4h 5m
2026-06-13 CES6077 NGB → SIN Jun 13, 04:25 UTCJun 13, 07:40 UTC3h 15m
2026-06-11 CES2236 KHN → XIY Jun 11, 10:50 UTCJun 11, 11:05 UTC15m
2026-06-10 CES2070 SIN → XIY Jun 10, 06:15 UTCJun 10, 09:25 UTC3h 10m
2026-06-09 CES2069 XIY → SIN Jun 9, 12:25 UTCJun 10, 04:25 UTC16h 0m
2026-06-02 CES770 SIN → HFE Jun 2, 08:10 UTCJun 2, 11:45 UTC3h 35m
2026-06-02 CES769 HFE → SIN Jun 2, 02:40 UTCJun 2, 02:55 UTC15m
2026-05-29 CES770 SIN → HFE May 29, 08:20 UTCMay 29, 12:05 UTC3h 45m
2026-05-29 CES769 HFE → SIN May 29, 03:05 UTCMay 29, 03:25 UTC20m
2026-05-23 CES6078 SIN → NGB May 23, 10:00 UTCMay 23, 14:00 UTC4h 0m
2026-05-23 CES6077 NGB → SIN May 23, 04:45 UTCMay 23, 07:55 UTC3h 10m
2026-05-21 CES6078 SIN → NGB May 21, 09:45 UTCMay 21, 13:55 UTC4h 10m
2026-05-21 CES6077 NGB → SIN May 21, 04:00 UTCMay 21, 07:30 UTC3h 30m
2026-05-19 CES6078 SIN → NGB May 19, 09:55 UTCMay 19, 13:35 UTC3h 40m
2026-05-16 CES6078 SIN → NGB May 16, 09:56 UTCMay 16, 10:25 UTC30m
2026-05-16 CES6077 NGB → SIN May 16, 07:51 UTCMay 16, 08:16 UTC25m
2026-05-14 CES6078 SIN → NGB May 14, 09:50 UTCMay 14, 13:50 UTC4h 0m
2026-05-14 CES6077 NGB → SIN May 14, 03:40 UTCMay 14, 07:30 UTC3h 50m
2026-05-12 CES6078 SIN → NGB May 12, 10:00 UTCMay 12, 13:55 UTC3h 55m
2026-05-12 CES6077 NGB → SIN May 12, 04:30 UTCMay 12, 04:40 UTC10m
2026-05-10 CES898 SIN → HGH May 10, 08:15 UTCMay 10, 11:50 UTC3h 35m
2026-05-10 CES897 HGH → SIN May 10, 05:14 UTCMay 10, 05:25 UTC10m
2026-05-06 CES5096 KUL → HGH May 6, 07:30 UTCMay 6, 22:35 UTC15h 4m

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-30AX page for operator, model, and routing details .

Mode-S 7817D2 frequently asked

What is Mode-S code 7817D2?
7817D2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30AX.
Where is Mode-S 7817D2 registered?
Mode-S code 7817D2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7817D2 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 7817D2, octal 36013722, decimal 7,870,418.
What flights does 7817D2 operate?
Mode-S 7817D2 has broadcast 16 distinct callsigns, including CES6078, CES6077, CES898, CES897, CES870.