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 21h ago
Flights observed
48
Distinct callsigns
20
Country
CN
Last broadcast
21h ago

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 Air China 3 2026-05-06
CCA869 Air China 3 2026-05-06
CCA903 Air China 2 2026-05-05
CCA1605 - 2 2026-05-28
CCA1278 Air China 2 2026-05-05
CCA1277 Air China 2 2026-05-04
CCA1144 - 2 2026-05-04
CCA1143 - 2 2026-05-04
CCA4148 Air China 1 2026-04-23
CCA1935 Air China 1 2026-05-18
CCA1925 Air China 1 2026-05-08
CCA1902 Air China 1 2026-05-07
CCA1901 Air China 1 2026-05-07
CCA1873 - 1 2026-05-09
CCA1831 Air China 1 2026-05-28
CCA1724 Air China 1 2026-04-19
CCA1706 Air China 1 2026-05-10
CCA1635 Air China 1 2026-04-23
CCA1619 - 1 2026-04-30
CCA1559 Air China 1 2026-05-03

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-05-29 CCA1365 PEK → CAN May 29, 08:20 UTCMay 29, 08:45 UTC25m
2026-05-28 CCA1831 PEK → XMN May 28, 22:40 UTCMay 28, 22:50 UTC10m
2026-05-28 CCA1605 - May 28, 02:10 UTCMay 28, 02:20 UTC10m
2026-05-27 CCA1272 LHW → PEK May 27, 08:55 UTCMay 27, 09:15 UTC20m
2026-05-27 CCA1271 PEK → LHW May 27, 03:50 UTCMay 27, 04:14 UTC25m
2026-05-26 CCA1224 XIY → PEK May 26, 08:50 UTCMay 26, 09:15 UTC25m
2026-05-26 CCA1223 PEK → XIY May 26, 03:55 UTCMay 26, 04:20 UTC25m
2026-05-19 CCA1431 PEK → CKG May 19, 00:10 UTCMay 19, 00:30 UTC20m
2026-05-18 CCA1935 PEK → NNG May 18, 03:40 UTCMay 18, 04:05 UTC25m
2026-05-17 CCA1145 PEK → TYN May 17, 23:15 UTCMay 17, 23:35 UTC20m
2026-05-16 CCA1342 SZX → PEK May 16, 09:16 UTCMay 16, 09:25 UTC10m
2026-05-10 CCA1706 PEK → HGH May 10, 00:45 UTCMay 10, 00:55 UTC10m
2026-05-09 CCA1873 - May 9, 07:30 UTCMay 9, 07:45 UTC15m
2026-05-09 CCA1605 - May 9, 02:00 UTCMay 9, 02:10 UTC10m
2026-05-08 CCA1925 PEK → ZHA May 8, 06:30 UTCMay 8, 06:45 UTC15m
2026-05-07 CCA1902 URC → PEK May 7, 10:05 UTCMay 7, 10:25 UTC20m
2026-05-07 CCA1901 PEK → URC May 7, 01:25 UTCMay 7, 01:45 UTC20m
2026-05-06 CCA870 IKT → PEK May 6, 11:55 UTCMay 6, 12:10 UTC15m
2026-05-06 CCA870 IKT → PEK May 6, 10:15 UTCMay 6, 10:25 UTC10m
2026-05-06 CCA869 PEK → IKT May 6, 05:15 UTCMay 6, 07:45 UTC2h 30m
2026-05-05 CCA903 PEK → SGN May 5, 12:45 UTCMay 5, 13:00 UTC15m
2026-05-05 CCA1228 - May 5, 08:30 UTCMay 5, 08:45 UTC15m
2026-05-05 CCA1227 - May 5, 04:30 UTCMay 5, 04:45 UTC15m
2026-05-05 CCA1278 LHW → PEK May 5, 01:55 UTCMay 5, 02:15 UTC20m
2026-05-04 CCA1277 PEK → LHW May 4, 12:20 UTCMay 4, 12:45 UTC25m
2026-05-04 CCA1144 - May 4, 03:00 UTCMay 4, 03:19 UTC20m
2026-05-04 CCA1143 - May 4, 00:00 UTCMay 4, 00:15 UTC15m
2026-05-03 CCA1270 ENY → PEK May 3, 13:00 UTCMay 3, 13:20 UTC20m
2026-05-03 CCA1269 PEK → ENY May 3, 09:20 UTCMay 3, 09:45 UTC25m
2026-05-03 CCA1559 PEK → YNT May 3, 04:45 UTCMay 3, 04:55 UTC10m
2026-05-03 CCA1206 XIY → PEK May 3, 02:10 UTCMay 3, 02:30 UTC20m
2026-05-02 CCA1205 PEK → XIY May 2, 12:00 UTCMay 2, 12:25 UTC25m
2026-04-30 CCA1619 - Apr 30, 22:30 UTCApr 30, 22:40 UTC10m
2026-04-26 CCA1440 CKG → PEK Apr 26, 12:15 UTCApr 26, 12:25 UTC10m
2026-04-26 CCA1439 PEK → CKG Apr 26, 06:30 UTCApr 26, 06:40 UTC10m
2026-04-26 CCA1144 - Apr 26, 03:20 UTCApr 26, 03:45 UTC25m
2026-04-26 CCA1143 - Apr 26, 00:30 UTCApr 26, 00:45 UTC15m
2026-04-25 CCA1278 LHW → PEK Apr 25, 01:45 UTCApr 25, 02:05 UTC20m
2026-04-24 CCA1277 PEK → LHW Apr 24, 12:20 UTCApr 24, 12:30 UTC10m
2026-04-23 CCA1635 PEK → SHE Apr 23, 11:15 UTCApr 23, 11:25 UTC10m
2026-04-23 CCA4148 PEK → CKG Apr 23, 02:55 UTCApr 23, 03:20 UTC25m
2026-04-20 CCA903 PEK → SGN Apr 20, 12:50 UTCApr 20, 13:00 UTC10m
2026-04-20 CCA1429 PEK → CKG Apr 20, 01:00 UTCApr 20, 01:20 UTC20m
2026-04-19 CCA1724 PEK → HGH Apr 19, 10:05 UTCApr 19, 10:15 UTC10m
2026-04-17 CCA1324 ZUH → PEK Apr 17, 13:30 UTCApr 17, 13:40 UTC10m
2026-04-13 CCA870 - Apr 13, 10:10 UTCApr 13, 10:25 UTC15m
2026-04-13 CCA869 PEK → IKT Apr 13, 07:55 UTCApr 13, 08:05 UTC10m
2026-04-13 CCA869 PEK → IKT Apr 13, 07:35 UTCApr 13, 08:05 UTC30m

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 21h ago.
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, CCA903, CCA1605, CCA1278.