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sensors Mode-S transponder

780C40

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1957 · BOEING 737-800

Hex
780C40
Octal
36006100
Decimal
7,867,456
Country
CN
Tail
B-1957
Type
B738
No current signal · last broadcast Jul 26, 16:20 UTC
Flights observed
165
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 16:20 UTC

Last known position

Most recent position reported by Mode-S 780C40.

Country allocation

The ICAO 24-bit address 780C40 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
CCA903 Air China 17 2026-07-26
CCA823 Air China 15 2026-07-23
CCA824 Air China 14 2026-07-23
CCA869 - 4 2026-07-03
CCA1148 Air China 4 2026-07-26
CCA1147 Air China 4 2026-07-26
CCA870 - 3 2026-06-26
CCA8376 - 3 2026-06-24
CCA1897 - 3 2026-07-25
CCA1623 - 3 2026-06-29
CCA1300 Air China 3 2026-06-12
CCA1299 - 3 2026-06-12
CCA9618 - 2 2026-07-13
CCA9617 - 2 2026-07-13
CCA904 Air China 2 2026-07-24
CCA8659 - 2 2026-06-24
CCA8608 - 2 2026-07-18
CCA1913 Air China 2 2026-06-09
CCA1891 - 2 2026-07-15
CCA1825 - 2 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CCA903 PEK → SGN Jul 26, 13:10 UTCJul 26, 16:20 UTC3h 10m
2026-07-26 CCA1148 RLK → PEK Jul 26, 04:05 UTCJul 26, 04:20 UTC15m
2026-07-26 CCA1147 PEK → RLK Jul 26, 00:55 UTCJul 26, 01:15 UTC20m
2026-07-25 CCA1270 ENY → PEK Jul 25, 13:15 UTCJul 25, 13:35 UTC20m
2026-07-25 CCA1269 PEK → ENY Jul 25, 10:05 UTCJul 25, 10:25 UTC20m
2026-07-25 CCA1897 - Jul 25, 04:35 UTCJul 25, 05:05 UTC30m
2026-07-24 CCA904 SGN → PEK Jul 24, 12:50 UTCJul 25, 02:45 UTC13h 55m
2026-07-24 CCA1224 XIY → PEK Jul 24, 09:55 UTCJul 24, 10:30 UTC35m
2026-07-24 CCA1223 PEK → XIY Jul 24, 06:00 UTCJul 24, 06:20 UTC20m
2026-07-23 CCA1825 - Jul 23, 23:50 UTCJul 24, 00:00 UTC10m
2026-07-23 CCA824 CNX → PEK Jul 23, 16:15 UTCJul 23, 17:05 UTC50m
2026-07-23 CCA823 PEK → CNX Jul 23, 11:00 UTCJul 23, 14:50 UTC3h 50m
2026-07-23 CCA1710 PEK → HGH Jul 23, 03:10 UTCJul 23, 03:20 UTC10m
2026-07-22 - - Jul 22, 13:25 UTCJul 22, 13:35 UTC10m
2026-07-21 CCA1655 - Jul 21, 23:35 UTCJul 21, 23:45 UTC10m
2026-07-21 CCA824 CNX → PEK Jul 21, 16:15 UTCJul 21, 17:00 UTC45m
2026-07-21 CCA823 PEK → CNX Jul 21, 13:35 UTCJul 21, 14:35 UTC1h 0m
2026-07-21 CCA823 PEK → CNX Jul 21, 10:10 UTCJul 21, 10:25 UTC15m
2026-07-21 CCA1489 - Jul 21, 01:20 UTCJul 21, 01:45 UTC25m
2026-07-19 CCA8669 - Jul 19, 11:50 UTCJul 19, 12:00 UTC10m
2026-07-19 CCA132 - Jul 19, 06:35 UTCJul 19, 07:00 UTC25m
2026-07-19 CCA131 - Jul 19, 04:25 UTCJul 19, 04:50 UTC25m
2026-07-18 CCA8608 - Jul 18, 09:05 UTCJul 18, 09:20 UTC15m
2026-07-16 CCA903 - Jul 16, 12:34 UTCJul 17, 00:04 UTC11h 30m
2026-07-16 CCA1446 - Jul 16, 02:45 UTCJul 16, 10:50 UTC8h 5m
2026-07-15 CCA1653 - Jul 15, 12:25 UTCJul 15, 12:35 UTC10m
2026-07-15 CCA1891 - Jul 15, 05:30 UTCJul 15, 05:40 UTC10m
2026-07-15 CCA1144 - Jul 15, 03:00 UTCJul 15, 03:20 UTC20m
2026-07-15 CCA1143 - Jul 15, 00:10 UTCJul 15, 00:30 UTC20m
2026-07-14 CCA824 - Jul 14, 16:00 UTCJul 14, 16:50 UTC50m
2026-07-14 CCA823 - Jul 14, 10:30 UTCJul 14, 14:25 UTC3h 55m
2026-07-14 CCA1897 - Jul 14, 04:25 UTCJul 14, 04:35 UTC10m
2026-07-13 CCA9618 - Jul 13, 14:15 UTCJul 13, 14:30 UTC15m
2026-07-13 CCA9617 - Jul 13, 11:40 UTCJul 13, 12:05 UTC25m
2026-07-12 CCA1511 - Jul 12, 04:35 UTCJul 12, 04:50 UTC15m
2026-07-11 CCA1655 - Jul 11, 23:20 UTCJul 11, 23:30 UTC10m
2026-07-11 CCA9686 - Jul 11, 15:55 UTCJul 11, 16:20 UTC25m
2026-07-11 CCA1208 - Jul 11, 08:20 UTCJul 11, 08:40 UTC20m
2026-07-11 CCA1207 - Jul 11, 02:45 UTCJul 11, 03:10 UTC25m
2026-07-10 CCA9527 - Jul 10, 05:50 UTCJul 10, 06:10 UTC20m
2026-07-09 CCA903 - Jul 9, 12:40 UTCJul 10, 00:15 UTC11h 35m
2026-07-09 CCA1488 - Jul 9, 09:55 UTCJul 9, 10:05 UTC10m
2026-07-09 CCA1487 - Jul 9, 05:25 UTCJul 9, 05:35 UTC10m
2026-07-08 CCA1819 - Jul 8, 13:20 UTCJul 8, 13:30 UTC10m
2026-07-08 CCA9704 - Jul 8, 11:05 UTCJul 8, 11:25 UTC20m
2026-07-08 CCA9703 - Jul 8, 03:15 UTCJul 8, 03:40 UTC25m
2026-07-07 CCA1718 - Jul 7, 12:50 UTCJul 7, 13:10 UTC20m
2026-07-07 CCA1148 - Jul 7, 04:30 UTCJul 7, 04:50 UTC20m
2026-07-07 CCA1147 - Jul 7, 01:30 UTCJul 7, 01:55 UTC25m
2026-07-06 CCA824 - Jul 6, 16:00 UTCJul 6, 16:50 UTC50m

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-1957 page for operator, model, and routing details .

Mode-S 780C40 frequently asked

What is Mode-S code 780C40?
780C40 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1957.
Where is Mode-S 780C40 registered?
Mode-S code 780C40 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780C40 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780C40, octal 36006100, decimal 7,867,456.
What flights does 780C40 operate?
Mode-S 780C40 has broadcast 20 distinct callsigns, including CCA903, CCA823, CCA824, CCA869, CCA1148.