Apparatus

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sensors Mode-S transponder

78199C

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30FY · AIRBUS A-321neo

Hex
78199C
Octal
36014634
Decimal
7,870,876
Country
CN
Tail
B-30FY
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
66
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 78199C.

Country allocation

The ICAO 24-bit address 78199C 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
CCA4326 - 10 2026-07-15
CCA4312 - 7 2026-07-11
CCA4035 - 5 2026-06-30
CCA4338 Air China 4 2026-06-08
CCA4325 - 4 2026-07-15
CCA4324 - 4 2026-07-12
CCA4102 - 4 2026-06-29
CCA4323 - 3 2026-06-15
CCA4120 - 3 2026-07-16
CCA4036 - 3 2026-06-30
CCA4336 - 2 2026-06-28
CCA4335 - 2 2026-06-28
CCA4311 - 2 2026-07-04
CCA4110 - 2 2026-06-26
CCA2742 Air China 2 2026-05-30
CCA4337 Air China 1 2026-04-22
CCA4314 Air China 1 2026-05-14
CCA4118 Air China 1 2026-05-18
CCA4107 Air China 1 2026-04-23
CCA4104 Air China 1 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 CCA4120 - Jul 16, 03:10 UTCJul 16, 03:30 UTC20m
2026-07-15 CCA4326 - Jul 15, 06:05 UTCJul 15, 06:20 UTC15m
2026-07-15 CCA4325 - Jul 15, 03:30 UTCJul 15, 03:45 UTC15m
2026-07-12 CCA4324 - Jul 12, 12:45 UTCJul 12, 13:01 UTC15m
2026-07-12 CCA4326 - Jul 12, 05:05 UTCJul 12, 05:20 UTC15m
2026-07-11 CCA4312 - Jul 11, 11:05 UTCJul 11, 11:20 UTC15m
2026-07-09 CCA4312 - Jul 9, 12:15 UTCJul 9, 12:25 UTC10m
2026-07-05 CCA4324 - Jul 5, 14:15 UTCJul 5, 14:30 UTC15m
2026-07-05 CCA4326 - Jul 5, 05:40 UTCJul 5, 05:50 UTC10m
2026-07-05 CCA4325 - Jul 5, 03:05 UTCJul 5, 03:15 UTC10m
2026-07-04 CCA4312 - Jul 4, 13:40 UTCJul 4, 13:55 UTC15m
2026-07-04 CCA4311 - Jul 4, 11:55 UTCJul 4, 12:05 UTC10m
2026-07-03 CCA4312 - Jul 3, 13:55 UTCJul 3, 14:10 UTC15m
2026-06-30 CCA4036 - Jun 30, 15:40 UTCJun 30, 15:50 UTC10m
2026-06-30 CCA4035 - Jun 30, 12:20 UTCJun 30, 12:55 UTC35m
2026-06-29 CCA4102 - Jun 29, 05:04 UTCJun 29, 05:34 UTC30m
2026-06-28 CCA4336 - Jun 28, 15:40 UTCJun 28, 15:55 UTC15m
2026-06-28 CCA4335 - Jun 28, 13:49 UTCJun 28, 13:59 UTC10m
2026-06-28 CCA4102 - Jun 28, 05:34 UTCJun 28, 05:49 UTC15m
2026-06-27 CCA4120 - Jun 27, 03:04 UTCJun 27, 03:30 UTC25m
2026-06-26 CCA4110 - Jun 26, 12:34 UTCJun 26, 12:55 UTC20m
2026-06-25 CCA4102 - Jun 25, 05:20 UTCJun 25, 05:39 UTC20m
2026-06-22 CCA4312 - Jun 22, 12:00 UTCJun 22, 12:15 UTC15m
2026-06-22 CCA4311 - Jun 22, 09:10 UTCJun 22, 09:19 UTC10m
2026-06-21 CCA4120 - Jun 21, 03:05 UTCJun 21, 03:25 UTC20m
2026-06-20 CCA4326 - Jun 20, 05:04 UTCJun 20, 05:24 UTC20m
2026-06-20 CCA4325 - Jun 20, 03:24 UTCJun 20, 03:34 UTC10m
2026-06-19 CCA4036 SYX → CTU Jun 19, 04:54 UTCJun 19, 05:14 UTC20m
2026-06-19 CCA4035 CTU → SYX Jun 19, 01:50 UTCJun 19, 02:24 UTC35m
2026-06-18 CCA4336 - Jun 18, 19:05 UTCJun 18, 19:15 UTC10m
2026-06-18 CCA4335 - Jun 18, 16:45 UTCJun 18, 16:55 UTC10m
2026-06-18 CCA4326 - Jun 18, 07:35 UTCJun 18, 07:45 UTC10m
2026-06-17 CCA4035 CTU → SYX Jun 17, 01:55 UTCJun 17, 05:15 UTC3h 20m
2026-06-15 CCA4324 - Jun 15, 17:25 UTCJun 15, 17:34 UTC10m
2026-06-15 CCA4323 - Jun 15, 15:40 UTCJun 15, 15:50 UTC10m
2026-06-15 CCA4326 - Jun 15, 08:04 UTCJun 15, 08:29 UTC25m
2026-06-15 CCA4325 - Jun 15, 02:50 UTCJun 15, 03:05 UTC15m
2026-06-14 CCA4036 SYX → CTU Jun 14, 04:55 UTCJun 14, 05:15 UTC20m
2026-06-14 CCA4035 CTU → SYX Jun 14, 01:50 UTCJun 14, 02:20 UTC30m
2026-06-11 CCA4035 CTU → SYX Jun 11, 12:25 UTCJun 11, 15:30 UTC3h 5m
2026-06-10 CCA4323 CTU → SZX Jun 10, 11:10 UTCJun 10, 11:20 UTC10m
2026-06-10 CCA4326 SZX → CTU Jun 10, 05:05 UTCJun 10, 05:15 UTC10m
2026-06-09 CCA4312 SZX → CTU Jun 9, 11:05 UTCJun 9, 11:15 UTC10m
2026-06-08 CCA4312 SZX → CTU Jun 8, 15:10 UTCJun 8, 15:20 UTC10m
2026-06-08 CCA4338 SZX → CTU Jun 8, 03:20 UTCJun 8, 03:35 UTC15m
2026-06-06 CCA4338 SZX → CTU Jun 6, 06:20 UTCJun 6, 06:35 UTC15m
2026-05-30 CCA2742 SHE → TFU May 30, 05:00 UTCMay 30, 05:20 UTC20m
2026-05-27 CCA2758 NGB → TFU May 27, 13:05 UTCMay 27, 13:15 UTC10m
2026-05-27 CCA2742 SHE → TFU May 27, 05:14 UTCMay 27, 11:15 UTC6h 1m
2026-05-18 CCA4118 PEK → CTU May 18, 14:05 UTCMay 18, 14:25 UTC20m

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-30FY page for operator, model, and routing details .

Mode-S 78199C frequently asked

What is Mode-S code 78199C?
78199C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30FY.
Where is Mode-S 78199C registered?
Mode-S code 78199C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78199C broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78199C, octal 36014634, decimal 7,870,876.
What flights does 78199C operate?
Mode-S 78199C has broadcast 20 distinct callsigns, including CCA4326, CCA4312, CCA4035, CCA4338, CCA4325.