Apparatus

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sensors Mode-S transponder

7812DC

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1392 · BOEING 737 MAX 8

Hex
7812DC
Octal
36011334
Decimal
7,869,148
Country
CN
Tail
B-1392
Type
B38M
No current signal · last broadcast 21d ago
Flights observed
44
Distinct callsigns
20
Country
CN
Last broadcast
21d ago

Last known position

Most recent position reported by Mode-S 7812DC.

Country allocation

The ICAO 24-bit address 7812DC 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
CCA702 Air China 6 2026-04-28
CCA872 Air China 3 2026-04-24
CCA701 Air China 3 2026-04-28
CCA551 Air China 3 2026-04-29
CCA1389 Air China 3 2026-04-30
CCA871 Air China 2 2026-04-24
CCA822 - 2 2026-04-15
CCA821 Air China 2 2026-04-15
CCA800 Air China 2 2026-04-22
CCA1208 Air China 2 2026-04-27
CCA117 Air China 2 2026-04-27
CCA901 Air China 1 2026-04-21
CCA799 Air China 1 2026-04-20
CCA778 - 1 2026-04-25
CCA4132 Air China 1 2026-05-07
CCA1461 Air China 1 2026-04-28
CCA1409 Air China 1 2026-04-23
CCA1390 Air China 1 2026-04-30
CCA1343 Air China 1 2026-04-23
CCA1274 Air China 1 2026-04-25

Recent flights last 44

DateFlightRouteTakeoffLandingDuration
2026-05-08 CCA1221 PEK → LHW May 8, 08:55 UTCMay 8, 09:14 UTC20m
2026-05-07 CCA4132 PEK → CKG May 7, 04:10 UTCMay 7, 04:25 UTC15m
2026-04-30 CCA1390 CSX → PEK Apr 30, 06:40 UTCApr 30, 06:50 UTC10m
2026-04-30 CCA1389 PEK → CSX Apr 30, 01:05 UTCApr 30, 01:20 UTC15m
2026-04-29 CCA551 PEK → HKG Apr 29, 08:40 UTCApr 29, 16:30 UTC7h 51m
2026-04-28 CCA1461 PEK → KWE Apr 28, 23:35 UTCApr 28, 23:50 UTC15m
2026-04-28 CCA702 DAC → PEK Apr 28, 20:50 UTCApr 28, 21:10 UTC20m
2026-04-28 CCA702 DAC → PEK Apr 28, 16:30 UTCApr 28, 17:15 UTC45m
2026-04-28 CCA701 PEK → DAC Apr 28, 09:50 UTCApr 28, 14:55 UTC5h 5m
2026-04-28 CCA118 HKG → PEK Apr 28, 00:40 UTCApr 28, 00:55 UTC15m
2026-04-27 CCA117 PEK → HKG Apr 27, 12:30 UTCApr 27, 12:50 UTC20m
2026-04-27 CCA117 PEK → HKG Apr 27, 09:50 UTCApr 27, 10:10 UTC20m
2026-04-27 CCA1208 LHW → PEK Apr 27, 07:05 UTCApr 27, 07:15 UTC10m
2026-04-26 CCA551 PEK → HKG Apr 26, 08:40 UTCApr 27, 02:50 UTC18h 10m
2026-04-26 CCA1389 PEK → CSX Apr 26, 01:00 UTCApr 26, 01:10 UTC10m
2026-04-25 CCA778 - Apr 25, 21:15 UTCApr 25, 21:30 UTC15m
2026-04-25 CCA1274 LHW → PEK Apr 25, 05:45 UTCApr 25, 06:05 UTC20m
2026-04-24 CCA872 KUL → PEK Apr 24, 16:50 UTCApr 25, 01:40 UTC8h 50m
2026-04-24 CCA871 PEK → KUL Apr 24, 09:05 UTCApr 24, 15:10 UTC6h 5m
2026-04-23 CCA1343 PEK → CSX Apr 23, 22:50 UTCApr 23, 23:10 UTC20m
2026-04-23 CCA1409 PEK → CKG Apr 23, 08:40 UTCApr 23, 08:55 UTC15m
2026-04-23 CCA1389 PEK → CSX Apr 23, 01:05 UTCApr 23, 01:15 UTC10m
2026-04-22 CCA800 ALA → PEK Apr 22, 10:30 UTCApr 22, 21:20 UTC10h 50m
2026-04-22 CCA1210 XIY → PEK Apr 22, 07:25 UTCApr 22, 07:40 UTC15m
2026-04-22 CCA1209 PEK → XIY Apr 22, 02:35 UTCApr 22, 02:55 UTC20m
2026-04-21 CCA551 PEK → HKG Apr 21, 08:45 UTCApr 21, 17:15 UTC8h 30m
2026-04-21 CCA901 PEK → UBN Apr 21, 01:25 UTCApr 21, 01:35 UTC10m
2026-04-20 CCA800 ALA → PEK Apr 20, 22:50 UTCApr 20, 23:10 UTC20m
2026-04-20 CCA799 PEK → ALA Apr 20, 10:10 UTCApr 20, 10:25 UTC15m
2026-04-19 CCA702 DAC → PEK Apr 19, 20:50 UTCApr 19, 21:05 UTC15m
2026-04-19 CCA702 DAC → PEK Apr 19, 16:50 UTCApr 19, 17:40 UTC50m
2026-04-19 CCA701 PEK → DAC Apr 19, 09:45 UTCApr 19, 15:15 UTC5h 30m
2026-04-19 CCA1208 LHW → PEK Apr 19, 07:20 UTCApr 19, 07:35 UTC15m
2026-04-19 CCA1207 PEK → LHW Apr 19, 02:50 UTCApr 19, 03:05 UTC15m
2026-04-18 CCA872 KUL → PEK Apr 18, 16:45 UTCApr 18, 20:10 UTC3h 25m
2026-04-18 CCA871 PEK → KUL Apr 18, 11:35 UTCApr 18, 15:15 UTC3h 40m
2026-04-16 CCA702 - Apr 16, 17:15 UTCApr 16, 17:25 UTC10m
2026-04-16 CCA702 - Apr 16, 16:30 UTCApr 16, 17:10 UTC40m
2026-04-16 CCA701 PEK → DAC Apr 16, 13:44 UTCApr 16, 14:50 UTC1h 5m
2026-04-15 CCA822 - Apr 15, 13:20 UTCApr 15, 14:01 UTC40m
2026-04-15 CCA821 PEK → HKT Apr 15, 09:20 UTCApr 15, 10:15 UTC55m
2026-04-13 CCA822 - Apr 13, 13:15 UTCApr 13, 13:55 UTC40m
2026-04-13 CCA821 PEK → HKT Apr 13, 09:55 UTCApr 13, 10:20 UTC25m
2026-04-12 CCA872 - Apr 12, 17:15 UTCApr 12, 20:05 UTC2h 50m

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-1392 page for operator, model, and routing details .

Mode-S 7812DC frequently asked

What is Mode-S code 7812DC?
7812DC is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1392.
Where is Mode-S 7812DC registered?
Mode-S code 7812DC is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812DC broadcasting right now?
No active broadcast right now. Last signal was 21d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812DC, octal 36011334, decimal 7,869,148.
What flights does 7812DC operate?
Mode-S 7812DC has broadcast 20 distinct callsigns, including CCA702, CCA872, CCA701, CCA551, CCA1389.