Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781F42

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32DX · AIRBUS A-320neo

Hex
781F42
Octal
36017502
Decimal
7,872,322
Country
CN
Tail
B-32DX
Type
A20N
No current signal · last broadcast 1d ago
Flights observed
77
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 781F42.

Country allocation

The ICAO 24-bit address 781F42 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
CES5095 China Eastern Airlines 17 2026-06-05
CES5096 China Eastern Airlines 6 2026-06-06
CES268 China Eastern Airlines 6 2026-07-21
CES267 China Eastern Airlines 6 2026-07-21
CES2040 - 6 2026-07-15
CES2034 - 5 2026-07-10
CES2033 - 5 2026-07-10
CES2039 - 4 2026-07-15
CES6903 - 3 2026-07-03
CES898 - 2 2026-06-17
CES897 - 2 2026-06-17
CES6050 China Eastern Airlines 2 2026-05-14
CES6049 China Eastern Airlines 2 2026-05-13
CES869 - 1 2026-06-18
CES760 China Eastern Airlines 1 2026-05-23
CES725 China Eastern Airlines 1 2026-05-12
CES6585 China Eastern Airlines 1 2026-07-21
CES6506 - 1 2026-06-18
CES6491 - 1 2026-06-20
CES6283 China Eastern Airlines 1 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 CES6283 TNA → LHW Jul 24, 22:40 UTCJul 24, 22:50 UTC10m
2026-07-21 CES6585 YNT → HET Jul 21, 23:35 UTCJul 21, 23:50 UTC15m
2026-07-21 CES268 ICN → YNT Jul 21, 07:15 UTCJul 21, 07:40 UTC25m
2026-07-21 CES267 YNT → ICN Jul 21, 05:25 UTCJul 21, 05:45 UTC20m
2026-07-20 CES268 ICN → YNT Jul 20, 07:15 UTCJul 20, 07:40 UTC25m
2026-07-20 CES267 YNT → ICN Jul 20, 05:40 UTCJul 20, 05:55 UTC15m
2026-07-15 CES2040 - Jul 15, 03:10 UTCJul 15, 07:00 UTC3h 50m
2026-07-15 CES2039 - Jul 15, 01:20 UTCJul 15, 01:45 UTC25m
2026-07-13 CES2040 - Jul 13, 03:20 UTCJul 13, 03:45 UTC25m
2026-07-13 CES2039 - Jul 13, 01:25 UTCJul 13, 01:40 UTC15m
2026-07-10 CES2034 - Jul 10, 05:05 UTCJul 10, 05:30 UTC25m
2026-07-10 CES2033 - Jul 10, 03:20 UTCJul 10, 03:55 UTC35m
2026-07-06 CES2034 - Jul 6, 05:05 UTCJul 6, 05:35 UTC30m
2026-07-06 CES2033 - Jul 6, 02:30 UTCJul 6, 03:00 UTC30m
2026-07-03 CES6903 - Jul 3, 10:05 UTCJul 4, 01:05 UTC15h 0m
2026-07-02 CES6903 - Jul 2, 01:30 UTCJul 2, 01:55 UTC25m
2026-06-30 CES2040 - Jun 30, 03:25 UTCJun 30, 03:45 UTC20m
2026-06-30 CES2039 - Jun 30, 01:09 UTCJun 30, 01:40 UTC31m
2026-06-29 CES2034 - Jun 29, 05:00 UTCJun 29, 05:20 UTC20m
2026-06-29 CES2033 - Jun 29, 02:30 UTCJun 29, 02:50 UTC20m
2026-06-27 CES6903 - Jun 27, 00:34 UTCJun 27, 01:00 UTC25m
2026-06-26 CES2040 - Jun 26, 03:20 UTCJun 26, 03:45 UTC25m
2026-06-26 CES2039 - Jun 26, 01:24 UTCJun 26, 01:54 UTC30m
2026-06-20 CES6491 - Jun 20, 08:55 UTCJun 20, 09:24 UTC30m
2026-06-20 CES2034 - Jun 20, 05:24 UTCJun 20, 05:54 UTC30m
2026-06-20 CES2033 - Jun 20, 02:59 UTCJun 20, 03:29 UTC30m
2026-06-18 CES869 - Jun 18, 16:55 UTCJun 18, 21:55 UTC5h 0m
2026-06-18 CES6506 - Jun 18, 10:05 UTCJun 18, 10:35 UTC30m
2026-06-17 CES898 - Jun 17, 08:00 UTCJun 17, 11:45 UTC3h 45m
2026-06-17 CES897 - Jun 17, 05:30 UTCJun 17, 05:50 UTC20m
2026-06-16 CES268 - Jun 16, 07:05 UTCJun 16, 07:20 UTC15m
2026-06-16 CES267 - Jun 16, 05:20 UTCJun 16, 05:45 UTC25m
2026-06-15 CES268 - Jun 15, 07:05 UTCJun 15, 07:20 UTC15m
2026-06-15 CES267 - Jun 15, 05:15 UTCJun 15, 05:35 UTC20m
2026-06-13 CES268 - Jun 13, 07:05 UTCJun 13, 07:20 UTC15m
2026-06-13 CES267 - Jun 13, 05:20 UTCJun 13, 05:45 UTC25m
2026-06-09 CES268 ICN → YNT Jun 9, 07:05 UTCJun 9, 10:20 UTC3h 15m
2026-06-09 CES267 YNT → ICN Jun 9, 05:15 UTCJun 9, 05:40 UTC25m
2026-06-06 CES5096 KUL → HGH Jun 6, 07:35 UTCJun 6, 11:00 UTC3h 25m
2026-06-05 CES5095 HGH → KUL Jun 5, 15:35 UTCJun 6, 06:00 UTC14h 25m
2026-06-05 CES5095 HGH → KUL Jun 5, 07:45 UTCJun 6, 06:00 UTC22h 15m
2026-06-05 CES5095 HGH → KUL Jun 5, 02:05 UTCJun 5, 05:50 UTC3h 45m
2026-06-03 CES898 SIN → HGH Jun 3, 08:20 UTCJun 3, 12:00 UTC3h 40m
2026-06-02 CES897 HGH → SIN Jun 2, 11:00 UTCJun 3, 05:40 UTC18h 40m
2026-06-02 CES5096 KUL → HGH Jun 2, 08:00 UTCJun 3, 05:40 UTC21h 40m
2026-06-01 CES5095 HGH → KUL Jun 1, 11:35 UTCJun 2, 05:50 UTC18h 15m
2026-06-01 CES5095 HGH → KUL Jun 1, 08:00 UTCJun 2, 05:50 UTC21h 50m
2026-06-01 CES5095 HGH → KUL Jun 1, 02:55 UTCJun 1, 06:10 UTC3h 15m
2026-05-30 CES5096 KUL → HGH May 30, 07:50 UTCMay 30, 11:50 UTC4h 0m
2026-05-29 CES5095 HGH → KUL May 29, 11:40 UTCMay 30, 06:05 UTC18h 25m

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-32DX page for operator, model, and routing details .

Mode-S 781F42 frequently asked

What is Mode-S code 781F42?
781F42 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32DX.
Where is Mode-S 781F42 registered?
Mode-S code 781F42 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781F42 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781F42, octal 36017502, decimal 7,872,322.
What flights does 781F42 operate?
Mode-S 781F42 has broadcast 20 distinct callsigns, including CES5095, CES5096, CES268, CES267, CES2040.