Apparatus

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sensors Mode-S transponder

78009B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1878 · AIRBUS A-321

Hex
78009B
Octal
36000233
Decimal
7,864,475
Country
CN
Tail
B-1878
Type
A321
No current signal · last broadcast 1h ago
Flights observed
111
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 78009B.

Country allocation

The ICAO 24-bit address 78009B 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
CCA116 - 6 2026-06-23
CCA115 - 5 2026-06-23
CCA8352 Air China 4 2026-05-26
CCA1885 - 4 2026-06-23
CCA133 - 4 2026-07-13
CCA126 Air China 4 2026-05-19
CCA726 - 3 2026-07-17
CCA421 - 3 2026-07-07
CCA1915 - 3 2026-07-08
CCA161 - 3 2026-07-04
CCA1573 - 3 2026-06-27
CCA125 Air China 3 2026-05-19
CCA1248 - 3 2026-07-14
CCA1247 - 3 2026-07-13
CCA728 - 2 2026-07-10
CCA727 - 2 2026-07-10
CCA725 Air China 2 2026-07-17
CCA422 - 2 2026-07-07
CCA182 Air China 2 2026-04-16
CCA1783 - 2 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CCA8360 - Jul 18, 03:40 UTCJul 18, 03:55 UTC15m
2026-07-17 CCA726 - Jul 17, 03:50 UTCJul 17, 04:49 UTC1h 0m
2026-07-17 CCA725 HGH → KIX Jul 17, 01:35 UTCJul 17, 02:34 UTC1h 0m
2026-07-15 CCA1756 - Jul 15, 01:25 UTCJul 15, 12:35 UTC11h 10m
2026-07-14 CCA1730 - Jul 14, 13:45 UTCJul 14, 13:55 UTC10m
2026-07-14 CCA1373 - Jul 14, 05:45 UTCJul 14, 06:05 UTC20m
2026-07-14 CCA1248 - Jul 14, 02:40 UTCJul 14, 03:05 UTC25m
2026-07-13 CCA1247 - Jul 13, 13:00 UTCJul 13, 13:20 UTC20m
2026-07-13 CCA134 - Jul 13, 07:15 UTCJul 13, 09:10 UTC1h 55m
2026-07-13 CCA133 - Jul 13, 03:10 UTCJul 13, 05:10 UTC2h 0m
2026-07-13 CCA133 - Jul 13, 02:15 UTCJul 13, 02:25 UTC10m
2026-07-12 CCA1325 - Jul 12, 09:45 UTCJul 12, 10:10 UTC25m
2026-07-10 CCA728 - Jul 10, 11:10 UTCJul 11, 01:00 UTC13h 50m
2026-07-10 CCA727 - Jul 10, 08:20 UTCJul 10, 09:05 UTC45m
2026-07-09 CCA1224 - Jul 9, 04:30 UTCJul 9, 08:55 UTC4h 25m
2026-07-08 CCA1915 - Jul 8, 13:55 UTCJul 8, 14:10 UTC15m
2026-07-08 CCA1202 - Jul 8, 06:10 UTCJul 8, 11:05 UTC4h 55m
2026-07-08 CCA1813 - Jul 8, 00:25 UTCJul 8, 00:35 UTC10m
2026-07-07 CCA422 - Jul 7, 15:35 UTCJul 7, 17:30 UTC1h 55m
2026-07-07 CCA421 - Jul 7, 11:50 UTCJul 7, 14:10 UTC2h 20m
2026-07-07 CCA421 - Jul 7, 11:00 UTCJul 7, 11:10 UTC10m
2026-07-07 CCA1709 - Jul 7, 06:35 UTCJul 7, 07:10 UTC35m
2026-07-06 CCA1716 - Jul 6, 05:55 UTCJul 6, 06:05 UTC10m
2026-07-05 CCA1639 - Jul 5, 15:20 UTCJul 5, 15:35 UTC15m
2026-07-05 CCA1483 - Jul 5, 05:00 UTCJul 5, 05:25 UTC25m
2026-07-05 CCA162 - Jul 5, 00:20 UTCJul 5, 01:50 UTC1h 30m
2026-07-04 CCA161 - Jul 4, 10:00 UTCJul 4, 11:20 UTC1h 20m
2026-07-03 CCA161 - Jul 3, 12:50 UTCJul 4, 11:20 UTC22h 30m
2026-07-03 CCA146 - Jul 3, 12:05 UTCJul 4, 10:30 UTC22h 25m
2026-07-03 CCA145 - Jul 3, 08:25 UTCJul 3, 10:00 UTC1h 35m
2026-07-03 CCA1783 - Jul 3, 01:10 UTCJul 3, 01:25 UTC15m
2026-07-02 CCA1228 - Jul 2, 08:30 UTCJul 2, 08:50 UTC20m
2026-07-01 CCA1653 - Jul 1, 12:15 UTCJul 1, 12:25 UTC10m
2026-07-01 CCA1843 - Jul 1, 05:35 UTCJul 1, 05:45 UTC10m
2026-07-01 CCA162 - Jul 1, 00:15 UTCJul 1, 01:45 UTC1h 30m
2026-06-30 CCA161 - Jun 30, 08:45 UTCJun 30, 11:10 UTC2h 25m
2026-06-29 CCA1335 PEK → NNG Jun 29, 23:29 UTCJun 29, 23:54 UTC25m
2026-06-29 CCA1724 - Jun 29, 09:50 UTCJun 29, 10:00 UTC10m
2026-06-29 CCA1710 - Jun 29, 02:39 UTCJun 29, 02:50 UTC10m
2026-06-28 CCA8305 - Jun 28, 03:00 UTCJun 28, 03:14 UTC15m
2026-06-27 CCA1573 - Jun 27, 13:24 UTCJun 27, 13:35 UTC10m
2026-06-26 CCA1573 - Jun 26, 13:45 UTCJun 26, 13:55 UTC10m
2026-06-26 CCA740 - Jun 26, 05:50 UTCJun 26, 06:15 UTC25m
2026-06-25 CCA739 - Jun 25, 13:50 UTCJun 26, 03:50 UTC14h 0m
2026-06-24 CCA1708 - Jun 24, 01:44 UTCJun 24, 02:00 UTC15m
2026-06-23 CCA116 - Jun 23, 12:35 UTCJun 23, 12:49 UTC15m
2026-06-23 CCA115 - Jun 23, 07:55 UTCJun 23, 10:59 UTC3h 5m
2026-06-23 CCA1885 - Jun 23, 01:30 UTCJun 23, 01:40 UTC10m
2026-06-22 CCA110 - Jun 22, 09:54 UTCJun 22, 10:10 UTC15m
2026-06-22 CCA109 - Jun 22, 05:15 UTCJun 22, 08:15 UTC3h 0m

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-1878 page for operator, model, and routing details .

Mode-S 78009B frequently asked

What is Mode-S code 78009B?
78009B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1878.
Where is Mode-S 78009B registered?
Mode-S code 78009B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78009B broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78009B, octal 36000233, decimal 7,864,475.
What flights does 78009B operate?
Mode-S 78009B has broadcast 20 distinct callsigns, including CCA116, CCA115, CCA8352, CCA1885, CCA133.