Apparatus

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sensors Mode-S transponder

780099

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5793 · BOEING 737-800

Hex
780099
Octal
36000231
Decimal
7,864,473
Country
CN
Tail
B-5793
Type
B738
No current signal · last broadcast 2d ago
Flights observed
70
Distinct callsigns
20
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 780099.

Country allocation

The ICAO 24-bit address 780099 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
CCA172 - 12 2026-07-20
CCA171 Air China 11 2026-07-20
CCA802 - 5 2026-07-20
CCA801 - 5 2026-07-20
CCA2810 Air China 4 2026-07-23
CCA2818 - 3 2026-07-05
CCA2814 - 3 2026-07-17
CCA2812 - 3 2026-07-15
CCA2809 Air China 3 2026-07-23
CCA2924 - 2 2026-06-28
CCA2888 Air China 2 2026-07-18
CCA2867 Air China 2 2026-07-24
CCA2820 - 2 2026-07-05
CCA2817 - 2 2026-07-04
CCA2811 - 2 2026-07-15
CCA2896 - 1 2026-04-30
CCA2893 - 1 2026-07-07
CCA2890 Air China 1 2026-05-11
CCA2877 Air China 1 2026-07-21
CCA2871 Air China 1 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CCA2871 TSN → KMG Jul 25, 01:35 UTCJul 25, 02:15 UTC40m
2026-07-24 CCA2868 - Jul 24, 15:05 UTCJul 24, 15:30 UTC25m
2026-07-24 CCA2867 TSN → KMG Jul 24, 08:35 UTCJul 24, 08:55 UTC20m
2026-07-23 CCA2810 URC → TSN Jul 23, 14:10 UTCJul 23, 14:30 UTC20m
2026-07-23 CCA2809 TSN → URC Jul 23, 06:00 UTCJul 23, 06:25 UTC25m
2026-07-21 CCA2877 TSN → KWE Jul 21, 10:30 UTCJul 21, 11:20 UTC50m
2026-07-20 CCA802 - Jul 20, 10:30 UTCJul 20, 10:50 UTC20m
2026-07-20 CCA801 - Jul 20, 07:55 UTCJul 20, 08:20 UTC25m
2026-07-20 CCA172 - Jul 20, 04:15 UTCJul 20, 04:40 UTC25m
2026-07-20 CCA171 TSN → ICN Jul 20, 01:45 UTCJul 20, 02:05 UTC20m
2026-07-18 CCA2888 ZUH → TSN Jul 18, 04:40 UTCJul 18, 04:55 UTC15m
2026-07-17 CCA2814 - Jul 17, 03:59 UTCJul 17, 04:10 UTC10m
2026-07-15 CCA2812 - Jul 15, 11:45 UTCJul 15, 11:55 UTC10m
2026-07-15 CCA2811 - Jul 15, 09:30 UTCJul 15, 09:40 UTC10m
2026-07-14 CCA802 - Jul 14, 10:25 UTCJul 14, 10:45 UTC20m
2026-07-14 CCA801 - Jul 14, 08:00 UTCJul 14, 08:25 UTC25m
2026-07-14 CCA172 - Jul 14, 04:10 UTCJul 14, 04:30 UTC20m
2026-07-14 CCA171 - Jul 14, 02:00 UTCJul 14, 02:30 UTC30m
2026-07-11 CCA2867 - Jul 11, 09:50 UTCJul 11, 10:05 UTC15m
2026-07-10 CCA2812 - Jul 10, 11:50 UTCJul 10, 12:05 UTC15m
2026-07-10 CCA2811 - Jul 10, 09:30 UTCJul 10, 09:40 UTC10m
2026-07-07 CCA2893 - Jul 7, 12:00 UTCJul 7, 12:10 UTC10m
2026-07-05 CCA2820 - Jul 5, 12:10 UTCJul 5, 12:20 UTC10m
2026-07-05 CCA2818 - Jul 5, 02:25 UTCJul 5, 02:35 UTC10m
2026-07-04 CCA2817 - Jul 4, 15:25 UTCJul 4, 15:35 UTC10m
2026-07-03 CCA2810 URC → TSN Jul 3, 14:40 UTCJul 3, 14:55 UTC15m
2026-07-03 CCA2809 - Jul 3, 05:30 UTCJul 3, 05:45 UTC15m
2026-07-02 CCA2810 URC → TSN Jul 2, 14:30 UTCJul 2, 14:55 UTC25m
2026-07-01 CCA2888 - Jul 1, 04:25 UTCJul 1, 04:40 UTC15m
2026-06-28 CCA2924 - Jun 28, 15:14 UTCJun 28, 15:44 UTC30m
2026-06-21 CCA2924 XNN → TSN Jun 21, 15:09 UTCJun 21, 15:30 UTC20m
2026-06-18 CCA2818 - Jun 18, 01:10 UTCJun 18, 01:20 UTC10m
2026-06-16 CCA172 - Jun 16, 04:35 UTCJun 16, 04:55 UTC20m
2026-06-16 CCA171 - Jun 16, 02:04 UTCJun 16, 02:29 UTC25m
2026-06-14 CCA172 - Jun 14, 04:35 UTCJun 14, 04:50 UTC15m
2026-06-14 CCA171 - Jun 14, 01:55 UTCJun 14, 02:20 UTC25m
2026-06-13 CCA172 ICN → TSN Jun 13, 04:15 UTCJun 13, 04:35 UTC20m
2026-06-13 CCA171 TSN → ICN Jun 13, 01:55 UTCJun 13, 02:15 UTC20m
2026-06-12 CCA172 ICN → TSN Jun 12, 04:55 UTCJun 12, 05:10 UTC15m
2026-06-12 CCA171 TSN → ICN Jun 12, 01:45 UTCJun 12, 02:10 UTC25m
2026-06-11 CCA172 ICN → TSN Jun 11, 04:20 UTCJun 11, 04:35 UTC15m
2026-06-11 CCA171 TSN → ICN Jun 11, 02:00 UTCJun 11, 02:25 UTC25m
2026-06-07 CCA172 ICN → TSN Jun 7, 04:00 UTCJun 7, 04:20 UTC20m
2026-06-07 CCA171 TSN → ICN Jun 7, 02:04 UTCJun 7, 02:25 UTC20m
2026-06-06 CCA172 ICN → TSN Jun 6, 04:25 UTCJun 6, 04:40 UTC15m
2026-06-06 CCA171 TSN → ICN Jun 6, 01:45 UTCJun 6, 02:05 UTC20m
2026-06-04 CCA2814 SZX → TSN Jun 4, 04:20 UTCJun 4, 04:30 UTC10m
2026-05-26 CCA2820 SZX → TSN May 26, 08:30 UTCMay 26, 08:45 UTC15m
2026-05-26 CCA2819 TSN → SZX May 26, 06:25 UTCMay 26, 06:34 UTC10m
2026-05-19 CCA2812 SZX → TSN May 19, 11:55 UTCMay 19, 12:05 UTC10m

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-5793 page for operator, model, and routing details .

Mode-S 780099 frequently asked

What is Mode-S code 780099?
780099 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5793.
Where is Mode-S 780099 registered?
Mode-S code 780099 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780099 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780099, octal 36000231, decimal 7,864,473.
What flights does 780099 operate?
Mode-S 780099 has broadcast 20 distinct callsigns, including CCA172, CCA171, CCA802, CCA801, CCA2810.