Apparatus

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sensors Mode-S transponder

780FA4

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8541 · AIRBUS A-321

Hex
780FA4
Octal
36007644
Decimal
7,868,324
Country
CN
Tail
B-8541
Type
A321
No current signal · last broadcast 1d ago
Flights observed
93
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 780FA4.

Country allocation

The ICAO 24-bit address 780FA4 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
CBJ5570 - 9 2026-06-20
CBJ5532 - 9 2026-06-11
CBJ5136 - 6 2026-06-27
CBJ5765 - 5 2026-06-28
CBJ5588 - 4 2026-06-20
CBJ5531 - 4 2026-06-21
CBJ5347 - 3 2026-04-25
CBJ5270 - 3 2026-07-01
CBJ5220 - 3 2026-05-20
CBJ5219 - 3 2026-05-20
CBJ5146 - 3 2026-06-27
CBJ5135 - 3 2026-06-27
CBJ5942 - 2 2026-07-07
CBJ5618 - 2 2026-06-17
CBJ5617 - 2 2026-06-17
CBJ5578 - 2 2026-07-11
CBJ5348 - 2 2026-04-24
CBJ5272 - 2 2026-06-21
CBJ5269 - 2 2026-04-28
CBJ5234 - 2 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CBJ5941 - Jul 17, 02:30 UTCJul 17, 06:00 UTC3h 30m
2026-07-16 CBJ5611 - Jul 16, 09:15 UTCJul 17, 06:00 UTC20h 45m
2026-07-11 CBJ5578 - Jul 11, 05:55 UTCJul 11, 12:55 UTC7h 0m
2026-07-07 CBJ5578 - Jul 7, 12:50 UTCJul 7, 13:10 UTC20m
2026-07-07 CBJ5942 - Jul 7, 10:15 UTCJul 7, 10:50 UTC35m
2026-07-06 CBJ5942 - Jul 6, 05:50 UTCJul 6, 10:30 UTC4h 40m
2026-07-01 CBJ5270 - Jul 1, 18:15 UTCJul 1, 18:25 UTC10m
2026-06-30 CBJ5186 - Jun 30, 14:05 UTCJun 30, 14:25 UTC20m
2026-06-29 CBJ5943 - Jun 29, 00:54 UTCJun 29, 01:05 UTC10m
2026-06-28 CBJ5765 - Jun 28, 04:29 UTCJun 28, 15:05 UTC10h 35m
2026-06-27 CBJ5136 - Jun 27, 16:04 UTCJun 28, 14:59 UTC22h 55m
2026-06-27 CBJ5135 - Jun 27, 10:50 UTCJun 28, 04:44 UTC17h 55m
2026-06-27 CBJ5146 - Jun 27, 07:59 UTCJun 28, 04:44 UTC20h 45m
2026-06-27 CBJ5146 - Jun 27, 02:20 UTCJun 27, 16:20 UTC14h 0m
2026-06-26 CBJ5146 - Jun 26, 15:05 UTCJun 27, 11:04 UTC20h 0m
2026-06-26 CBJ5765 - Jun 26, 04:10 UTCJun 27, 02:29 UTC22h 20m
2026-06-25 CBJ5125 - Jun 25, 07:54 UTCJun 26, 04:30 UTC20h 35m
2026-06-25 CBJ5125 - Jun 25, 05:15 UTCJun 26, 04:30 UTC23h 15m
2026-06-23 CBJ5084 - Jun 23, 11:24 UTCJun 23, 12:20 UTC55m
2026-06-22 CBJ5083 - Jun 22, 23:29 UTCJun 23, 08:50 UTC9h 20m
2026-06-21 CBJ5765 - Jun 21, 23:59 UTCJun 22, 15:10 UTC15h 10m
2026-06-21 CBJ5272 - Jun 21, 14:30 UTCJun 21, 14:50 UTC20m
2026-06-21 CBJ5272 - Jun 21, 10:19 UTCJun 21, 10:34 UTC15m
2026-06-21 CBJ5531 - Jun 21, 01:55 UTCJun 21, 06:19 UTC4h 25m
2026-06-20 CBJ5588 - Jun 20, 15:44 UTCJun 20, 16:09 UTC25m
2026-06-20 CBJ5570 - Jun 20, 01:24 UTCJun 20, 11:44 UTC10h 20m
2026-06-19 CBJ5588 - Jun 19, 16:39 UTCJun 19, 16:59 UTC20m
2026-06-19 CBJ5570 - Jun 19, 00:49 UTCJun 19, 12:19 UTC11h 30m
2026-06-18 CBJ5234 - Jun 18, 15:30 UTCJun 18, 15:45 UTC15m
2026-06-17 CBJ5618 - Jun 17, 13:10 UTCJun 17, 14:40 UTC1h 30m
2026-06-17 CBJ5617 - Jun 17, 01:40 UTCJun 17, 03:10 UTC1h 30m
2026-06-16 CBJ5588 - Jun 16, 17:10 UTCJun 16, 17:24 UTC15m
2026-06-16 CBJ5926 - Jun 16, 01:15 UTCJun 16, 13:25 UTC12h 10m
2026-06-15 CBJ5234 - Jun 15, 15:30 UTCJun 15, 15:50 UTC20m
2026-06-14 CBJ5264 - Jun 14, 09:15 UTCJun 14, 14:10 UTC4h 55m
2026-06-13 CBJ5196 - Jun 13, 17:00 UTCJun 13, 17:30 UTC30m
2026-06-13 CBJ5768 - Jun 13, 01:05 UTCJun 13, 05:25 UTC4h 19m
2026-06-12 CBJ5765 - Jun 12, 00:00 UTCJun 12, 15:00 UTC15h 1m
2026-06-11 CBJ5532 - Jun 11, 15:35 UTCJun 12, 15:00 UTC23h 25m
2026-06-11 CBJ5532 - Jun 11, 11:15 UTCJun 11, 11:30 UTC15m
2026-06-11 CBJ5531 - Jun 11, 06:15 UTCJun 11, 06:30 UTC15m
2026-06-10 CBJ5570 - Jun 10, 01:10 UTCJun 10, 11:45 UTC10h 35m
2026-06-09 CBJ5570 - Jun 9, 11:05 UTCJun 10, 11:00 UTC23h 55m
2026-06-09 CBJ5570 - Jun 9, 01:20 UTCJun 9, 11:25 UTC10h 5m
2026-06-08 CBJ5765 - Jun 8, 04:15 UTCJun 9, 01:35 UTC21h 20m
2026-06-07 CBJ5532 - Jun 7, 15:55 UTCJun 7, 16:20 UTC25m
2026-06-07 CBJ5532 - Jun 7, 11:25 UTCJun 7, 11:40 UTC15m
2026-06-07 CBJ5531 - Jun 7, 01:50 UTCJun 7, 06:25 UTC4h 35m
2026-06-06 CBJ5532 - Jun 6, 15:39 UTCJun 6, 15:59 UTC20m
2026-06-06 CBJ5532 - Jun 6, 03:30 UTCJun 6, 11:49 UTC8h 20m

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-8541 page for operator, model, and routing details .

Mode-S 780FA4 frequently asked

What is Mode-S code 780FA4?
780FA4 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8541.
Where is Mode-S 780FA4 registered?
Mode-S code 780FA4 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780FA4 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 780FA4, octal 36007644, decimal 7,868,324.
What flights does 780FA4 operate?
Mode-S 780FA4 has broadcast 20 distinct callsigns, including CBJ5570, CBJ5532, CBJ5136, CBJ5765, CBJ5588.