Apparatus

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sensors Mode-S transponder

78103B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8579 · AIRBUS A-330-300

Hex
78103B
Octal
36010073
Decimal
7,868,475
Country
CN
Tail
B-8579
Type
A333
No current signal · last broadcast 2d ago
Flights observed
143
Distinct callsigns
20
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 78103B.

Country allocation

The ICAO 24-bit address 78103B 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
CCA738 - 10 2026-06-29
CCA111 - 9 2026-07-02
CCA737 - 8 2026-06-28
CCA112 - 8 2026-07-02
CCA180 - 7 2026-07-08
CCA976 Air China 6 2026-05-24
CCA975 Air China 5 2026-05-06
CCA179 - 5 2026-07-07
CCA970 Air China 4 2026-05-15
CCA969 Air China 4 2026-05-15
CCA830 - 4 2026-07-01
CCA1358 - 4 2026-07-05
CCA124 Air China 4 2026-06-12
CCA8693 - 3 2026-07-05
CCA750 - 3 2026-06-20
CCA749 - 3 2026-06-20
CCA1397 - 3 2026-07-08
CCA1305 - 3 2026-07-04
CCA1252 - 3 2026-07-09
CCA123 Air China 3 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 CCA140 - Jul 12, 13:10 UTCJul 12, 13:55 UTC45m
2026-07-12 CCA139 - Jul 12, 10:50 UTCJul 12, 11:40 UTC50m
2026-07-11 CCA140 - Jul 11, 04:55 UTCJul 11, 05:40 UTC45m
2026-07-11 CCA139 - Jul 11, 02:20 UTCJul 11, 03:01 UTC40m
2026-07-09 CCA1252 - Jul 9, 08:15 UTCJul 9, 08:30 UTC15m
2026-07-08 CCA1398 - Jul 8, 11:30 UTCJul 8, 11:45 UTC15m
2026-07-08 CCA1397 - Jul 8, 06:45 UTCJul 8, 07:05 UTC20m
2026-07-08 CCA180 - Jul 8, 00:05 UTCJul 8, 01:45 UTC1h 40m
2026-07-07 CCA179 - Jul 7, 18:00 UTCJul 7, 22:20 UTC4h 20m
2026-07-07 CCA1252 - Jul 7, 09:15 UTCJul 7, 09:25 UTC10m
2026-07-06 CCA1251 - Jul 6, 23:55 UTCJul 7, 00:10 UTC15m
2026-07-06 CCA182 - Jul 6, 05:25 UTCJul 6, 07:30 UTC2h 5m
2026-07-06 CCA181 - Jul 6, 01:35 UTCJul 6, 03:35 UTC2h 0m
2026-07-05 CCA1358 - Jul 5, 14:25 UTCJul 5, 14:40 UTC15m
2026-07-05 CCA8693 - Jul 5, 01:45 UTCJul 5, 02:00 UTC15m
2026-07-04 CCA1305 - Jul 4, 12:30 UTCJul 4, 12:50 UTC20m
2026-07-04 CCA1252 - Jul 4, 08:20 UTCJul 4, 08:35 UTC15m
2026-07-04 CCA1251 - Jul 4, 00:10 UTCJul 4, 00:25 UTC15m
2026-07-03 CCA860 IST → PEK Jul 3, 20:25 UTCJul 3, 20:40 UTC15m
2026-07-03 CCA860 IST → PEK Jul 3, 12:30 UTCJul 3, 17:20 UTC4h 50m
2026-07-02 CCA859 - Jul 2, 18:30 UTCJul 3, 04:40 UTC10h 10m
2026-07-02 CCA112 - Jul 2, 07:05 UTCJul 2, 07:30 UTC25m
2026-07-02 CCA111 - Jul 2, 04:30 UTCJul 2, 05:05 UTC35m
2026-07-02 CCA111 - Jul 2, 02:00 UTCJul 2, 02:20 UTC20m
2026-07-01 CCA830 - Jul 1, 20:45 UTCJul 1, 21:00 UTC15m
2026-07-01 CCA830 - Jul 1, 12:10 UTCJul 1, 14:40 UTC2h 30m
2026-06-30 CCA829 - Jun 30, 19:10 UTCJul 1, 05:40 UTC10h 30m
2026-06-30 CCA1384 - Jun 30, 08:10 UTCJun 30, 08:20 UTC10m
2026-06-30 CCA1383 - Jun 30, 05:55 UTCJun 30, 06:10 UTC15m
2026-06-30 CCA1383 - Jun 30, 03:15 UTCJun 30, 03:35 UTC20m
2026-06-29 CCA738 - Jun 29, 12:14 UTCJun 29, 17:55 UTC5h 40m
2026-06-28 CCA737 - Jun 28, 20:54 UTCJun 29, 00:44 UTC3h 50m
2026-06-23 CCA964 - Jun 23, 11:40 UTCJun 23, 14:15 UTC2h 35m
2026-06-22 CCA963 - Jun 22, 21:40 UTCJun 23, 04:19 UTC6h 40m
2026-06-22 CCA1358 - Jun 22, 13:35 UTCJun 22, 13:44 UTC10m
2026-06-22 CCA8694 PKX → SZX Jun 22, 10:40 UTCJun 22, 10:55 UTC15m
2026-06-20 CCA750 - Jun 20, 18:34 UTCJun 20, 20:45 UTC2h 10m
2026-06-20 CCA749 - Jun 20, 05:24 UTCJun 20, 15:44 UTC10h 20m
2026-06-18 CCA750 - Jun 18, 18:20 UTCJun 19, 01:15 UTC6h 54m
2026-06-18 CCA749 - Jun 18, 08:40 UTCJun 18, 15:35 UTC6h 55m
2026-06-14 CCA750 - Jun 14, 18:15 UTCJun 15, 01:00 UTC6h 45m
2026-06-14 CCA749 - Jun 14, 08:50 UTCJun 14, 15:55 UTC7h 5m
2026-06-13 CCA1394 - Jun 13, 03:55 UTCJun 13, 04:15 UTC19m
2026-06-12 CCA1393 PEK → SZX Jun 12, 22:50 UTCJun 12, 23:10 UTC20m
2026-06-12 CCA124 ICN → PEK Jun 12, 05:10 UTCJun 12, 05:35 UTC25m
2026-06-12 CCA123 PEK → ICN Jun 12, 02:15 UTCJun 12, 02:35 UTC20m
2026-06-11 CCA738 WAW → PEK Jun 11, 20:35 UTCJun 11, 20:55 UTC20m
2026-06-11 CCA738 WAW → PEK Jun 11, 12:35 UTCJun 11, 18:00 UTC5h 25m
2026-06-11 CCA737 PEK → WAW Jun 11, 04:55 UTCJun 11, 05:15 UTC20m
2026-06-10 CCA737 PEK → WAW Jun 10, 20:15 UTCJun 11, 00:15 UTC4h 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-8579 page for operator, model, and routing details .

Mode-S 78103B frequently asked

What is Mode-S code 78103B?
78103B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8579.
Where is Mode-S 78103B registered?
Mode-S code 78103B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78103B 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 78103B, octal 36010073, decimal 7,868,475.
What flights does 78103B operate?
Mode-S 78103B has broadcast 20 distinct callsigns, including CCA738, CCA111, CCA737, CCA112, CCA180.