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
41
Distinct callsigns
17
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 17 distinct

Callsign Airline Flights Last seen
CES5095 China Eastern Airlines 17 2026-06-05
CES5096 China Eastern Airlines 6 2026-06-06
CES6050 China Eastern Airlines 2 2026-05-14
CES6049 China Eastern Airlines 2 2026-05-13
CES2040 China Eastern Airlines 2 2026-05-08
CES898 China Eastern Airlines 1 2026-06-03
CES897 China Eastern Airlines 1 2026-06-02
CES760 China Eastern Airlines 1 2026-05-23
CES725 China Eastern Airlines 1 2026-05-12
CES5620 China Eastern Airlines 1 2026-05-12
CES5259 China Eastern Airlines 1 2026-04-20
CES294 China Eastern Airlines 1 2026-05-22
CES293 China Eastern Airlines 1 2026-05-22
CES268 China Eastern Airlines 1 2026-06-09
CES267 China Eastern Airlines 1 2026-06-09
CES2034 China Eastern Airlines 1 2026-05-04
CES2033 China Eastern Airlines 1 2026-05-04

Recent flights last 41

DateFlightRouteTakeoffLandingDuration
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
2026-05-29 CES5095 HGH → KUL May 29, 08:35 UTCMay 30, 06:05 UTC21h 30m
2026-05-29 CES5095 HGH → KUL May 29, 02:55 UTCMay 29, 06:35 UTC3h 40m
2026-05-23 CES760 PNH → PVG May 23, 14:05 UTCMay 23, 19:45 UTC5h 40m
2026-05-22 CES294 HIJ → PVG May 22, 04:45 UTCMay 22, 05:10 UTC25m
2026-05-22 CES293 PVG → HIJ May 22, 02:55 UTCMay 22, 03:30 UTC35m
2026-05-14 CES6050 SIN → PVG May 14, 10:40 UTCMay 14, 14:30 UTC3h 50m
2026-05-13 CES6049 PVG → SIN May 13, 23:55 UTCMay 14, 08:35 UTC8h 40m
2026-05-12 CES725 PVG → HKG May 12, 23:25 UTCMay 13, 15:30 UTC16h 5m
2026-05-12 CES5620 HRB → PVG May 12, 07:20 UTCMay 12, 23:55 UTC16h 35m
2026-05-08 CES2040 ICN → TAO May 8, 03:19 UTCMay 8, 03:30 UTC10m
2026-05-04 CES2034 ICN → TAO May 4, 04:29 UTCMay 4, 04:55 UTC25m
2026-05-04 CES2033 TAO → ICN May 4, 02:54 UTCMay 4, 03:09 UTC15m
2026-05-01 CES5096 KUL → HGH May 1, 11:50 UTCMay 1, 12:05 UTC15m
2026-05-01 CES5096 KUL → HGH May 1, 08:45 UTCMay 1, 09:05 UTC20m
2026-05-01 CES5095 HGH → KUL May 1, 03:00 UTCMay 1, 06:35 UTC3h 35m
2026-04-30 CES5095 HGH → KUL Apr 30, 07:50 UTCMay 1, 06:30 UTC22h 40m
2026-04-29 CES5095 HGH → KUL Apr 29, 11:00 UTCApr 30, 06:30 UTC19h 29m
2026-04-29 CES5096 KUL → HGH Apr 29, 07:59 UTCApr 30, 06:30 UTC22h 30m
2026-04-28 CES5095 HGH → KUL Apr 28, 11:25 UTCApr 29, 06:19 UTC18h 55m
2026-04-28 CES5095 HGH → KUL Apr 28, 07:45 UTCApr 29, 06:19 UTC22h 35m
2026-04-27 CES5095 HGH → KUL Apr 27, 10:45 UTCApr 28, 06:30 UTC19h 45m
2026-04-27 CES5095 HGH → KUL Apr 27, 07:45 UTCApr 28, 06:30 UTC22h 45m
2026-04-27 CES5095 HGH → KUL Apr 27, 02:35 UTCApr 27, 05:50 UTC3h 15m
2026-04-25 CES2040 ICN → TAO Apr 25, 03:20 UTCApr 25, 03:45 UTC25m
2026-04-21 CES6050 SIN → PVG Apr 21, 10:40 UTCApr 21, 14:40 UTC4h 0m
2026-04-21 CES6049 PVG → SIN Apr 21, 04:30 UTCApr 21, 08:50 UTC4h 20m
2026-04-20 CES5259 TNA → CAN Apr 20, 13:50 UTCApr 20, 14:00 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-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 17 distinct callsigns, including CES5095, CES5096, CES6050, CES6049, CES2040.