Apparatus

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sensors Mode-S transponder

7812E0

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1397 · BOEING 737 MAX 8

Hex
7812E0
Octal
36011340
Decimal
7,869,152
Country
CN
Tail
B-1397
Type
B38M
No current signal · last broadcast 4h ago
Flights observed
51
Distinct callsigns
20
Country
CN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 7812E0.

Country allocation

The ICAO 24-bit address 7812E0 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
CCA871 Air China 4 2026-06-01
CCA822 Air China 4 2026-05-31
CCA872 Air China 3 2026-06-01
CCA781 Air China 3 2026-05-23
CCA821 Air China 2 2026-05-28
CCA799 Air China 2 2026-05-29
CCA782 Air China 2 2026-05-23
CCA701 Air China 2 2026-06-02
CCA1246 Air China 2 2026-04-30
CCA1245 Air China 2 2026-04-30
CCA1242 Air China 2 2026-04-29
CCA800 Air China 1 2026-05-29
CCA792 Air China 1 2026-05-25
CCA702 Air China 1 2026-06-02
CCA1627 Air China 1 2026-05-29
CCA1545 Air China 1 2026-04-30
CCA1476 Air China 1 2026-04-26
CCA1475 Air China 1 2026-04-26
CCA1454 - 1 2026-04-23
CCA1453 - 1 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 CCA1399 PEK → CSX Jun 3, 02:20 UTCJun 3, 02:40 UTC20m
2026-06-02 CCA702 DAC → PEK Jun 2, 16:30 UTCJun 2, 20:50 UTC4h 20m
2026-06-02 CCA701 PEK → DAC Jun 2, 13:35 UTCJun 2, 14:20 UTC45m
2026-06-01 CCA701 PEK → DAC Jun 1, 19:25 UTCJun 2, 14:20 UTC18h 55m
2026-06-01 CCA872 KUL → PEK Jun 1, 16:20 UTCJun 2, 14:20 UTC22h 0m
2026-06-01 CCA871 PEK → KUL Jun 1, 11:10 UTCJun 1, 14:40 UTC3h 30m
2026-05-31 CCA822 HKT → PEK May 31, 14:05 UTCJun 1, 11:30 UTC21h 25m
2026-05-31 CCA822 HKT → PEK May 31, 13:10 UTCJun 1, 11:30 UTC22h 20m
2026-05-30 CCA822 HKT → PEK May 30, 20:05 UTCMay 31, 15:20 UTC19h 15m
2026-05-30 CCA822 HKT → PEK May 30, 16:50 UTCMay 31, 15:20 UTC22h 30m
2026-05-30 CCA871 PEK → KUL May 30, 09:25 UTCMay 30, 15:00 UTC5h 35m
2026-05-29 CCA800 ALA → PEK May 29, 20:55 UTCMay 29, 21:10 UTC15m
2026-05-29 CCA799 PEK → ALA May 29, 09:50 UTCMay 29, 10:00 UTC10m
2026-05-29 CCA1627 PEK → CGQ May 29, 02:20 UTCMay 29, 02:30 UTC10m
2026-05-28 CCA821 PEK → HKT May 28, 05:00 UTCMay 28, 15:25 UTC10h 25m
2026-05-27 CCA872 KUL → PEK May 27, 18:20 UTCMay 27, 21:45 UTC3h 25m
2026-05-27 CCA871 PEK → KUL May 27, 10:10 UTCMay 27, 16:15 UTC6h 5m
2026-05-26 CCA1335 PEK → NNG May 26, 23:35 UTCMay 27, 00:00 UTC25m
2026-05-26 CCA821 PEK → HKT May 26, 05:25 UTCMay 26, 14:45 UTC9h 20m
2026-05-25 CCA792 NQZ → XIY May 25, 15:15 UTCMay 26, 03:30 UTC12h 14m
2026-05-23 CCA782 TBS → URC May 23, 18:45 UTCMay 23, 19:15 UTC30m
2026-05-23 CCA781 URC → TBS May 23, 12:40 UTCMay 23, 16:30 UTC3h 50m
2026-05-21 CCA782 TBS → URC May 21, 18:45 UTCMay 21, 22:30 UTC3h 45m
2026-05-21 CCA781 URC → TBS May 21, 13:20 UTCMay 21, 17:25 UTC4h 5m
2026-05-21 CCA781 URC → TBS May 21, 05:25 UTCMay 21, 05:35 UTC10m
2026-05-20 CCA1410 CKG → PEK May 20, 14:10 UTCMay 20, 14:20 UTC10m
2026-05-20 CCA1409 PEK → CKG May 20, 08:45 UTCMay 20, 08:55 UTC10m
2026-04-30 CCA1246 HTN → PEK Apr 30, 15:45 UTCApr 30, 16:05 UTC20m
2026-04-30 CCA1245 PEK → HTN Apr 30, 05:15 UTCApr 30, 05:30 UTC15m
2026-04-30 CCA1545 PEK → YNT Apr 30, 00:30 UTCApr 30, 00:40 UTC10m
2026-04-29 CCA1242 AAT → PEK Apr 29, 14:15 UTCApr 29, 14:35 UTC20m
2026-04-29 CCA1241 PEK → AAT Apr 29, 06:15 UTCApr 29, 06:25 UTC10m
2026-04-28 CCA1246 HTN → PEK Apr 28, 16:10 UTCApr 28, 16:20 UTC10m
2026-04-28 CCA1245 PEK → HTN Apr 28, 05:30 UTCApr 28, 05:45 UTC15m
2026-04-26 CCA799 PEK → ALA Apr 26, 10:25 UTCApr 26, 15:00 UTC4h 35m
2026-04-26 CCA1476 KMG → PEK Apr 26, 07:50 UTCApr 26, 08:05 UTC15m
2026-04-26 CCA1475 PEK → KMG Apr 26, 00:15 UTCApr 26, 00:30 UTC15m
2026-04-25 CCA1336 NNG → PEK Apr 25, 07:20 UTCApr 25, 07:35 UTC15m
2026-04-24 CCA1242 AAT → PEK Apr 24, 14:20 UTCApr 24, 14:35 UTC15m
2026-04-24 CCA118 HKG → PEK Apr 24, 01:00 UTCApr 24, 01:10 UTC10m
2026-04-23 CCA117 PEK → HKG Apr 23, 10:15 UTCApr 23, 13:15 UTC3h 0m
2026-04-23 CCA1454 - Apr 23, 05:00 UTCApr 23, 05:10 UTC10m
2026-04-22 CCA1453 - Apr 22, 23:45 UTCApr 23, 00:00 UTC15m
2026-04-21 CCA1274 LHW → PEK Apr 21, 05:30 UTCApr 21, 05:45 UTC15m
2026-04-21 CCA1273 PEK → LHW Apr 21, 01:05 UTCApr 21, 01:30 UTC25m
2026-04-20 CCA1434 KWE → PEK Apr 20, 08:30 UTCApr 20, 08:50 UTC20m
2026-04-20 CCA1433 PEK → KWE Apr 20, 01:50 UTCApr 20, 02:20 UTC30m
2026-04-19 CCA872 KUL → PEK Apr 19, 16:50 UTCApr 19, 20:25 UTC3h 35m
2026-04-19 CCA871 PEK → KUL Apr 19, 08:45 UTCApr 19, 14:55 UTC6h 10m
2026-04-19 CCA108 HKG → PEK Apr 19, 02:50 UTCApr 19, 03:05 UTC15m

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-1397 page for operator, model, and routing details .

Mode-S 7812E0 frequently asked

What is Mode-S code 7812E0?
7812E0 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1397.
Where is Mode-S 7812E0 registered?
Mode-S code 7812E0 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812E0 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812E0, octal 36011340, decimal 7,869,152.
What flights does 7812E0 operate?
Mode-S 7812E0 has broadcast 20 distinct callsigns, including CCA871, CCA822, CCA872, CCA781, CCA821.