Apparatus

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sensors Mode-S transponder

780B44

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-2043 · BOEING 777-300ER

Hex
780B44
Octal
36005504
Decimal
7,867,204
Country
CN
Tail
B-2043
Type
B77W
No current signal · last broadcast 4h ago
Flights observed
96
Distinct callsigns
2
Country
CN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 780B44.

Country allocation

The ICAO 24-bit address 780B44 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 2 distinct

Callsign Airline Flights Last seen
CCA1509 - 1 2026-06-24
CCA1379 Air China 1 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 - - Jul 23, 16:05 UTCJul 23, 16:25 UTC20m
2026-07-23 - - Jul 23, 08:10 UTCJul 23, 08:30 UTC20m
2026-07-22 - - Jul 22, 16:00 UTCJul 22, 16:10 UTC10m
2026-07-22 - - Jul 22, 13:15 UTCJul 22, 13:35 UTC20m
2026-07-22 - - Jul 22, 01:45 UTCJul 22, 02:10 UTC25m
2026-07-21 - - Jul 21, 16:50 UTCJul 21, 17:05 UTC15m
2026-07-21 - - Jul 21, 07:55 UTCJul 21, 08:10 UTC15m
2026-07-21 - - Jul 21, 05:20 UTCJul 21, 05:40 UTC20m
2026-07-20 - - Jul 20, 17:40 UTCJul 20, 18:00 UTC20m
2026-07-20 - - Jul 20, 03:30 UTCJul 20, 03:40 UTC10m
2026-07-19 - - Jul 19, 00:45 UTCJul 19, 00:55 UTC10m
2026-07-18 - - Jul 18, 16:50 UTCJul 18, 17:10 UTC20m
2026-07-18 - - Jul 18, 09:20 UTCJul 18, 09:30 UTC10m
2026-07-18 - - Jul 18, 03:00 UTCJul 18, 03:10 UTC10m
2026-07-17 - - Jul 17, 15:25 UTCJul 17, 15:44 UTC20m
2026-07-17 - - Jul 17, 13:00 UTCJul 17, 13:10 UTC10m
2026-07-17 - - Jul 17, 10:10 UTCJul 17, 10:20 UTC10m
2026-07-17 - - Jul 17, 02:30 UTCJul 17, 02:45 UTC15m
2026-07-16 - - Jul 16, 04:00 UTCJul 16, 04:10 UTC10m
2026-07-15 - - Jul 15, 16:10 UTCJul 15, 16:20 UTC10m
2026-07-15 - - Jul 15, 13:20 UTCJul 15, 13:30 UTC10m
2026-07-15 - - Jul 15, 09:40 UTCJul 15, 10:00 UTC20m
2026-07-15 - - Jul 15, 02:00 UTCJul 15, 02:10 UTC10m
2026-07-14 - - Jul 14, 08:45 UTCJul 14, 09:05 UTC20m
2026-07-13 - - Jul 13, 12:50 UTCJul 13, 13:00 UTC10m
2026-07-13 - - Jul 13, 00:15 UTCJul 13, 00:35 UTC20m
2026-07-12 - - Jul 12, 13:25 UTCJul 12, 13:35 UTC10m
2026-07-12 - - Jul 12, 08:45 UTCJul 12, 08:55 UTC10m
2026-07-12 - - Jul 12, 03:45 UTCJul 12, 03:55 UTC10m
2026-07-11 - - Jul 11, 23:00 UTCJul 11, 23:20 UTC20m
2026-07-11 - - Jul 11, 08:20 UTCJul 11, 08:40 UTC20m
2026-07-11 - - Jul 11, 00:00 UTCJul 11, 00:10 UTC10m
2026-07-10 - - Jul 10, 16:20 UTCJul 10, 16:30 UTC10m
2026-07-10 - - Jul 10, 06:50 UTCJul 10, 07:00 UTC10m
2026-07-10 - - Jul 10, 04:55 UTCJul 10, 05:05 UTC10m
2026-07-10 - - Jul 10, 02:25 UTCJul 10, 02:40 UTC15m
2026-07-09 - - Jul 9, 15:10 UTCJul 9, 15:20 UTC10m
2026-07-09 - - Jul 9, 10:55 UTCJul 9, 11:15 UTC20m
2026-07-09 - - Jul 9, 04:05 UTCJul 9, 04:15 UTC10m
2026-07-08 - - Jul 8, 22:50 UTCJul 8, 23:05 UTC15m
2026-07-08 - - Jul 8, 12:05 UTCJul 8, 12:15 UTC10m
2026-07-08 - - Jul 8, 06:45 UTCJul 8, 06:55 UTC10m
2026-07-08 - - Jul 8, 03:45 UTCJul 8, 04:00 UTC15m
2026-07-07 - - Jul 7, 02:55 UTCJul 7, 03:05 UTC10m
2026-07-06 - - Jul 6, 10:45 UTCJul 6, 11:00 UTC15m
2026-07-05 - - Jul 5, 14:40 UTCJul 5, 14:50 UTC10m
2026-07-05 - - Jul 5, 00:45 UTCJul 5, 00:55 UTC10m
2026-07-04 - - Jul 4, 06:55 UTCJul 4, 07:05 UTC10m
2026-07-03 - - Jul 3, 12:30 UTCJul 3, 12:40 UTC10m
2026-07-01 - - Jul 1, 02:45 UTCJul 1, 03:00 UTC15m

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-2043 page for operator, model, and routing details .

Mode-S 780B44 frequently asked

What is Mode-S code 780B44?
780B44 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-2043.
Where is Mode-S 780B44 registered?
Mode-S code 780B44 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780B44 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780B44, octal 36005504, decimal 7,867,204.
What flights does 780B44 operate?
Mode-S 780B44 has broadcast 2 distinct callsigns, including CCA1509, CCA1379.