Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781F29

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32DJ · AIRBUS A-350-900

Hex
781F29
Octal
36017451
Decimal
7,872,297
Country
CN
Tail
B-32DJ
Type
A359
No current signal · last broadcast 12h ago
Flights observed
185
Distinct callsigns
20
Country
CN
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 781F29.

Country allocation

The ICAO 24-bit address 781F29 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
CES249 - 19 2026-07-12
CES785 China Eastern Airlines 17 2026-06-28
CES786 - 16 2026-06-29
CES250 China Eastern Airlines 16 2026-06-20
CES787 China Eastern Airlines 14 2026-06-21
CES788 - 13 2026-06-21
CES710 - 10 2026-06-12
CES709 China Eastern Airlines 10 2026-06-11
CES243 - 10 2026-07-08
CES7236 - 8 2026-07-12
CES581 China Eastern Airlines 6 2026-06-15
CES244 - 6 2026-07-09
CES7235 - 5 2026-07-11
CES752 - 4 2026-06-07
CES751 - 4 2026-06-07
CES582 - 4 2026-06-15
CES561 China Eastern Airlines 4 2026-06-30
CES217 China Eastern Airlines 4 2026-04-15
CES562 - 3 2026-07-01
CES218 China Eastern Airlines 3 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CES250D - Jul 13, 10:30 UTCJul 13, 14:00 UTC3h 30m
2026-07-12 CES249 - Jul 12, 20:25 UTCJul 13, 07:25 UTC11h 0m
2026-07-12 CES249 - Jul 12, 06:20 UTCJul 13, 06:15 UTC23h 55m
2026-07-12 CES249 - Jul 12, 05:40 UTCJul 13, 04:15 UTC22h 35m
2026-07-12 CES7236 - Jul 12, 02:20 UTCJul 13, 02:15 UTC23h 55m
2026-07-11 CES7236 - Jul 11, 22:55 UTCJul 12, 20:40 UTC21h 45m
2026-07-11 CES7235 - Jul 11, 08:10 UTCJul 11, 18:40 UTC10h 30m
2026-07-10 CES524 - Jul 10, 05:30 UTCJul 10, 07:05 UTC1h 35m
2026-07-09 CES244 MXP → NRT Jul 9, 12:05 UTCJul 10, 03:55 UTC15h 50m
2026-07-08 CES243 - Jul 8, 19:40 UTCJul 9, 05:35 UTC9h 55m
2026-07-08 CES7236 - Jul 8, 00:20 UTCJul 8, 23:30 UTC23h 10m
2026-07-07 CES7236 - Jul 7, 22:20 UTCJul 8, 20:00 UTC21h 40m
2026-07-07 CES7236 - Jul 7, 22:10 UTCJul 8, 20:00 UTC21h 50m
2026-07-07 CES7235 - Jul 7, 11:00 UTCJul 7, 18:35 UTC7h 35m
2026-07-06 CES7235 - Jul 6, 20:20 UTCJul 7, 18:35 UTC22h 15m
2026-07-06 CES7235 - Jul 6, 17:20 UTCJul 7, 16:15 UTC22h 55m
2026-07-06 CES524 - Jul 6, 05:25 UTCJul 6, 14:30 UTC9h 5m
2026-07-05 CES523 - Jul 5, 09:10 UTCJul 6, 03:55 UTC18h 45m
2026-07-04 CES244 MXP → PVG Jul 4, 12:20 UTCJul 5, 07:15 UTC18h 55m
2026-07-03 CES243 PVG → MXP Jul 3, 20:00 UTCJul 4, 06:10 UTC10h 10m
2026-07-03 CES243 PVG → MXP Jul 3, 06:20 UTCJul 4, 06:10 UTC23h 50m
2026-07-03 CES243 PVG → MXP Jul 3, 05:30 UTCJul 4, 04:15 UTC22h 45m
2026-07-02 CES244 MXP → PVG Jul 2, 11:55 UTCJul 3, 04:00 UTC16h 5m
2026-07-01 CES243 PVG → MXP Jul 1, 19:15 UTCJul 2, 05:35 UTC10h 20m
2026-07-01 CES243 PVG → MXP Jul 1, 03:00 UTCJul 2, 02:15 UTC23h 15m
2026-07-01 CES562 - Jul 1, 01:25 UTCJul 1, 23:10 UTC21h 45m
2026-06-30 CES561 PVG → SYD Jun 30, 06:20 UTCJun 30, 22:55 UTC16h 35m
2026-06-29 CES786 - Jun 29, 10:29 UTCJun 30, 04:40 UTC18h 11m
2026-06-28 CES785 PVG → VCE Jun 28, 19:20 UTCJun 29, 05:00 UTC9h 40m
2026-06-28 CES785 PVG → VCE Jun 28, 08:59 UTCJun 29, 05:00 UTC20h 0m
2026-06-28 CES785 PVG → VCE Jun 28, 06:40 UTCJun 29, 05:00 UTC22h 20m
2026-06-28 CES785 PVG → VCE Jun 28, 03:29 UTCJun 29, 02:14 UTC22h 45m
2026-06-28 CES782 - Jun 28, 00:20 UTCJun 28, 23:04 UTC22h 45m
2026-06-27 CES781 - Jun 27, 12:34 UTCJun 27, 20:59 UTC8h 25m
2026-06-27 CES5342 - Jun 27, 05:19 UTCJun 27, 05:29 UTC10m
2026-06-27 CES5331 - Jun 27, 03:40 UTCJun 27, 03:49 UTC10m
2026-06-25 CES244 MXP → PVG Jun 25, 11:44 UTCJun 25, 18:15 UTC6h 30m
2026-06-24 CES243 PVG → MXP Jun 24, 19:44 UTCJun 25, 05:35 UTC9h 50m
2026-06-23 CES244 MXP → PVG Jun 23, 11:49 UTCJun 23, 18:34 UTC6h 45m
2026-06-22 CES243 PVG → MXP Jun 22, 19:29 UTCJun 23, 05:24 UTC9h 55m
2026-06-22 CES243 PVG → MXP Jun 22, 01:25 UTCJun 22, 23:14 UTC21h 50m
2026-06-21 CES788 - Jun 21, 22:20 UTCJun 22, 19:49 UTC21h 30m
2026-06-21 CES788 - Jun 21, 20:24 UTCJun 22, 19:49 UTC23h 25m
2026-06-21 CES788 - Jun 21, 19:29 UTCJun 22, 02:04 UTC6h 35m
2026-06-21 CES787 PVG → FCO Jun 21, 06:04 UTCJun 21, 16:30 UTC10h 25m
2026-06-20 CES787 PVG → FCO Jun 20, 19:24 UTCJun 21, 16:14 UTC20h 50m
2026-06-20 CES787 PVG → FCO Jun 20, 12:19 UTCJun 21, 09:55 UTC21h 35m
2026-06-20 CES250 BCN → PVG Jun 20, 10:20 UTCJun 21, 09:55 UTC23h 35m
2026-06-20 CES250 BCN → PVG Jun 20, 09:29 UTCJun 21, 06:19 UTC20h 50m
2026-06-19 CES249 PVG → BCN Jun 19, 18:25 UTCJun 20, 05:14 UTC10h 50m

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

Mode-S 781F29 frequently asked

What is Mode-S code 781F29?
781F29 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32DJ.
Where is Mode-S 781F29 registered?
Mode-S code 781F29 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781F29 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781F29, octal 36017451, decimal 7,872,297.
What flights does 781F29 operate?
Mode-S 781F29 has broadcast 20 distinct callsigns, including CES249, CES785, CES786, CES250, CES787.