Apparatus

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sensors Mode-S transponder

780D85

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1766 · BOEING 737-800

Hex
780D85
Octal
36006605
Decimal
7,867,781
Country
CN
Tail
B-1766
Type
B738
No current signal · last broadcast Jul 25, 09:30 UTC
Flights observed
137
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 09:30 UTC

Last known position

Most recent position reported by Mode-S 780D85.

Country allocation

The ICAO 24-bit address 780D85 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
CCA870 - 5 2026-07-08
CCA869 - 5 2026-07-08
CCA1605 - 4 2026-07-12
CCA1144 - 4 2026-07-19
CCA1143 - 4 2026-07-19
CCA903 - 3 2026-07-07
CCA4148 Air China 3 2026-07-25
CCA1270 - 3 2026-07-12
CCA1269 - 3 2026-07-12
CCA9743 - 2 2026-07-08
CCA9735 - 2 2026-07-04
CCA4143 Air China 2 2026-07-25
CCA1935 - 2 2026-07-09
CCA1921 - 2 2026-06-29
CCA1873 - 2 2026-07-10
CCA1619 - 2 2026-07-04
CCA1440 - 2 2026-07-11
CCA1439 - 2 2026-07-11
CCA1324 - 2 2026-07-16
CCA1300 Air China 2 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CCA4143 CKG → PEK Jul 25, 09:10 UTCJul 25, 09:30 UTC20m
2026-07-25 CCA4148 PEK → CKG Jul 25, 03:10 UTCJul 25, 03:40 UTC30m
2026-07-24 CCA1572 TAO → PEK Jul 24, 14:00 UTCJul 24, 14:10 UTC10m
2026-07-24 CCA1571 PEK → TAO Jul 24, 10:40 UTCJul 24, 10:50 UTC10m
2026-07-24 CCA4143 CKG → PEK Jul 24, 03:05 UTCJul 24, 09:00 UTC5h 55m
2026-07-21 CCA1641 PEK → HRB Jul 21, 11:35 UTCJul 21, 11:45 UTC10m
2026-07-21 CCA4148 PEK → CKG Jul 21, 03:25 UTCJul 21, 03:50 UTC25m
2026-07-20 CCA1447 - Jul 20, 14:15 UTCJul 20, 21:40 UTC7h 25m
2026-07-20 CCA1300 SZX → PVG Jul 20, 08:00 UTCJul 20, 08:35 UTC35m
2026-07-20 CCA1299 - Jul 20, 05:10 UTCJul 20, 05:30 UTC20m
2026-07-19 CCA1304 - Jul 19, 10:05 UTCJul 19, 10:15 UTC10m
2026-07-19 CCA1303 - Jul 19, 05:45 UTCJul 19, 06:00 UTC15m
2026-07-19 CCA1144 - Jul 19, 03:20 UTCJul 19, 03:35 UTC15m
2026-07-19 CCA1143 - Jul 19, 00:20 UTCJul 19, 00:40 UTC20m
2026-07-18 CCA1283 - Jul 18, 10:15 UTCJul 18, 10:30 UTC15m
2026-07-17 CCA9618 - Jul 17, 13:20 UTCJul 17, 13:35 UTC15m
2026-07-17 CCA9617 - Jul 17, 10:40 UTCJul 17, 10:55 UTC15m
2026-07-17 CCA1312 - Jul 17, 08:40 UTCJul 17, 08:49 UTC10m
2026-07-17 CCA1311 - Jul 17, 01:49 UTCJul 17, 02:05 UTC15m
2026-07-16 CCA1324 - Jul 16, 10:59 UTCJul 16, 11:15 UTC15m
2026-07-16 CCA1323 - Jul 16, 06:35 UTCJul 16, 07:00 UTC25m
2026-07-16 CCA1148 - Jul 16, 04:15 UTCJul 16, 04:35 UTC20m
2026-07-16 CCA1147 - Jul 16, 01:25 UTCJul 16, 01:45 UTC20m
2026-07-15 CCA9681 - Jul 15, 08:30 UTCJul 15, 08:40 UTC10m
2026-07-15 CCA1537 - Jul 15, 01:10 UTCJul 15, 01:20 UTC10m
2026-07-14 CCA1377 - Jul 14, 07:50 UTCJul 14, 13:30 UTC5h 40m
2026-07-13 CCA1300 - Jul 13, 08:01 UTCJul 13, 08:20 UTC20m
2026-07-13 CCA1299 - Jul 13, 05:01 UTCJul 13, 05:25 UTC25m
2026-07-13 CCA1144 - Jul 13, 03:01 UTCJul 13, 03:15 UTC15m
2026-07-13 CCA1143 - Jul 13, 00:01 UTCJul 13, 00:15 UTC15m
2026-07-12 CCA1270 - Jul 12, 13:01 UTCJul 12, 13:30 UTC30m
2026-07-12 CCA1269 - Jul 12, 09:50 UTCJul 12, 10:15 UTC25m
2026-07-12 CCA1605 - Jul 12, 01:55 UTCJul 12, 02:10 UTC15m
2026-07-11 CCA1440 - Jul 11, 14:55 UTCJul 11, 16:10 UTC1h 15m
2026-07-11 CCA1439 - Jul 11, 07:05 UTCJul 11, 07:25 UTC20m
2026-07-10 CCA9659 - Jul 10, 23:15 UTCJul 10, 23:35 UTC20m
2026-07-10 CCA1873 - Jul 10, 07:55 UTCJul 10, 08:10 UTC15m
2026-07-10 CCA1147 - Jul 10, 00:50 UTCJul 10, 01:15 UTC25m
2026-07-09 CCA1936 - Jul 9, 10:25 UTCJul 9, 10:35 UTC10m
2026-07-09 CCA1935 - Jul 9, 03:25 UTCJul 9, 03:40 UTC15m
2026-07-08 CCA9743 - Jul 8, 16:30 UTCJul 8, 16:40 UTC10m
2026-07-08 CCA870 - Jul 8, 11:55 UTCJul 8, 12:15 UTC20m
2026-07-08 CCA869 - Jul 8, 05:45 UTCJul 8, 05:55 UTC10m
2026-07-07 CCA903 - Jul 7, 14:00 UTCJul 7, 23:55 UTC9h 55m
2026-07-07 CCA1867 - Jul 7, 05:55 UTCJul 7, 06:15 UTC20m
2026-07-06 CCA1135 - Jul 6, 23:20 UTCJul 6, 23:30 UTC10m
2026-07-05 CCA1212 - Jul 5, 13:30 UTCJul 5, 13:45 UTC15m
2026-07-05 CCA1211 - Jul 5, 05:00 UTCJul 5, 05:10 UTC10m
2026-07-04 CCA1619 - Jul 4, 22:50 UTCJul 4, 23:00 UTC10m
2026-07-04 CCA9735 - Jul 4, 13:15 UTCJul 4, 13:30 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-1766 page for operator, model, and routing details .

Mode-S 780D85 frequently asked

What is Mode-S code 780D85?
780D85 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1766.
Where is Mode-S 780D85 registered?
Mode-S code 780D85 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780D85 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 09:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780D85, octal 36006605, decimal 7,867,781.
What flights does 780D85 operate?
Mode-S 780D85 has broadcast 20 distinct callsigns, including CCA870, CCA869, CCA1605, CCA1144, CCA1143.