Apparatus

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sensors Mode-S transponder

781FDA

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32FE · AIRBUS A-330-300

Hex
781FDA
Octal
36017732
Decimal
7,872,474
Country
CN
Tail
B-32FE
Type
A333
Broadcasting now · callsign CBJ682 · 37,000 ft
Flights observed
119
Distinct callsigns
19
Country
CN
Last broadcast
11m ago

Current position

781FDA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 781FDA 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 19 distinct

Callsign Airline Flights Last seen
CBJ677 - 21 2026-07-02
CBJ678 - 19 2026-06-30
CBJ690 - 16 2026-07-03
CBJ689 - 15 2026-07-02
CBJ651 - 9 2026-07-17
CBJ654 - 6 2026-07-14
CBJ652 - 5 2026-07-15
CBJ686 - 4 2026-07-01
CBJ685 - 4 2026-06-23
CBJ681 - 4 2026-06-13
CBJ660 - 3 2026-05-07
CBJ683 - 2 2026-04-24
CBJ682 - 2 2026-07-10
CBJ653 - 2 2026-07-17
CBJ642 - 2 2026-06-15
CBJ632 - 2 2026-07-13
CBJ684 - 1 2026-04-16
CBJ641 - 1 2026-06-14
CBJ631 - 1 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CBJ653 - Jul 17, 07:30 UTCJul 18, 00:29 UTC17h 0m
2026-07-17 CBJ651 - Jul 17, 04:10 UTCJul 17, 05:20 UTC1h 10m
2026-07-15 CBJ652 - Jul 15, 09:15 UTCJul 15, 10:25 UTC1h 10m
2026-07-14 CBJ654 - Jul 14, 15:30 UTCJul 15, 06:10 UTC14h 39m
2026-07-13 CBJ632 - Jul 13, 08:50 UTCJul 13, 10:05 UTC1h 15m
2026-07-13 CBJ631 - Jul 13, 04:55 UTCJul 13, 06:10 UTC1h 15m
2026-07-11 CBJ654 - Jul 11, 11:45 UTCJul 12, 06:15 UTC18h 30m
2026-07-10 CBJ682 - Jul 10, 14:30 UTCJul 11, 00:55 UTC10h 25m
2026-07-07 CBJ653 - Jul 7, 16:45 UTCJul 8, 01:15 UTC8h 30m
2026-07-06 CBJ652 - Jul 6, 12:55 UTCJul 6, 14:45 UTC1h 50m
2026-07-05 CBJ632 DAC → DAC Jul 5, 18:05 UTCJul 6, 10:45 UTC16h 40m
2026-07-05 CBJ654 - Jul 5, 00:45 UTCJul 5, 15:55 UTC15h 10m
2026-07-04 CBJ654 - Jul 4, 13:45 UTCJul 5, 09:05 UTC19h 20m
2026-07-03 CBJ690 - Jul 3, 18:10 UTCJul 4, 10:45 UTC16h 35m
2026-07-03 CBJ690 - Jul 3, 12:35 UTCJul 4, 10:45 UTC22h 10m
2026-07-03 CBJ690 - Jul 3, 12:10 UTCJul 4, 10:30 UTC22h 20m
2026-07-02 CBJ690 - Jul 2, 21:10 UTCJul 3, 20:30 UTC23h 20m
2026-07-02 CBJ689 - Jul 2, 16:35 UTCJul 3, 14:15 UTC21h 40m
2026-07-02 CBJ689 - Jul 2, 16:25 UTCJul 3, 14:15 UTC21h 50m
2026-07-02 CBJ677 - Jul 2, 05:40 UTCJul 2, 13:20 UTC7h 40m
2026-07-01 CBJ677 - Jul 1, 16:35 UTCJul 2, 13:20 UTC20h 45m
2026-07-01 CBJ686 DAC → OSL Jul 1, 15:50 UTCJul 2, 13:20 UTC21h 30m
2026-06-30 CBJ678 - Jun 30, 19:10 UTCJul 1, 13:30 UTC18h 20m
2026-06-29 CBJ690 - Jun 29, 20:44 UTCJun 30, 15:50 UTC19h 6m
2026-06-28 CBJ689 - Jun 28, 19:09 UTCJun 29, 16:15 UTC21h 5m
2026-06-27 CBJ690 - Jun 27, 14:35 UTCJun 28, 10:10 UTC19h 35m
2026-06-27 CBJ690 - Jun 27, 13:49 UTCJun 28, 10:10 UTC20h 20m
2026-06-27 CBJ690 - Jun 27, 04:05 UTCJun 28, 00:00 UTC19h 55m
2026-06-26 CBJ689 - Jun 26, 07:20 UTCJun 27, 00:29 UTC17h 10m
2026-06-25 CBJ689 - Jun 25, 16:35 UTCJun 26, 14:25 UTC21h 50m
2026-06-25 CBJ689 - Jun 25, 16:14 UTCJun 26, 14:25 UTC22h 10m
2026-06-25 CBJ677 - Jun 25, 12:10 UTCJun 25, 13:29 UTC1h 20m
2026-06-24 CBJ677 DAC → OSL Jun 24, 17:40 UTCJun 25, 13:29 UTC19h 50m
2026-06-23 CBJ685 - Jun 23, 20:49 UTCJun 24, 15:44 UTC18h 55m
2026-06-23 CBJ678 - Jun 23, 18:55 UTCJun 24, 15:44 UTC20h 50m
2026-06-23 CBJ677 - Jun 23, 08:35 UTCJun 23, 08:45 UTC10m
2026-06-22 CBJ677 - Jun 22, 12:34 UTCJun 23, 08:45 UTC20h 10m
2026-06-22 CBJ678 - Jun 22, 11:14 UTCJun 23, 08:45 UTC21h 30m
2026-06-21 CBJ677 - Jun 21, 22:34 UTCJun 22, 06:00 UTC7h 25m
2026-06-21 CBJ677 - Jun 21, 06:35 UTCJun 22, 06:00 UTC23h 25m
2026-06-21 CBJ690 - Jun 21, 05:49 UTCJun 21, 22:54 UTC17h 5m
2026-06-21 CBJ690 - Jun 21, 00:34 UTCJun 21, 22:54 UTC22h 20m
2026-06-20 CBJ690 - Jun 20, 15:44 UTCJun 21, 07:34 UTC15h 50m
2026-06-19 CBJ682 - Jun 19, 19:59 UTCJun 20, 12:24 UTC16h 25m
2026-06-15 CBJ689 - Jun 15, 14:34 UTCJun 16, 10:15 UTC19h 40m
2026-06-15 CBJ642 - Jun 15, 13:00 UTCJun 16, 10:15 UTC21h 15m
2026-06-15 CBJ642 - Jun 15, 08:45 UTCJun 15, 10:15 UTC1h 30m
2026-06-14 CBJ641 - Jun 14, 20:50 UTCJun 14, 21:00 UTC10m
2026-06-13 CBJ681 - Jun 13, 03:50 UTCJun 13, 20:55 UTC17h 4m
2026-06-12 CBJ689 - Jun 12, 09:55 UTCJun 13, 00:55 UTC15h 0m

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

Mode-S 781FDA frequently asked

What is Mode-S code 781FDA?
781FDA is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32FE.
Where is Mode-S 781FDA registered?
Mode-S code 781FDA is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781FDA broadcasting right now?
Yes. Mode-S 781FDA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781FDA, octal 36017732, decimal 7,872,474.
What flights does 781FDA operate?
Mode-S 781FDA has broadcast 19 distinct callsigns, including CBJ677, CBJ678, CBJ690, CBJ689, CBJ651.