Apparatus

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sensors Mode-S transponder

7812DF

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1396 · BOEING 737 MAX 8

Hex
7812DF
Octal
36011337
Decimal
7,869,151
Country
CN
Tail
B-1396
Type
B38M
No current signal · last broadcast 1h ago
Flights observed
151
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7812DF.

Country allocation

The ICAO 24-bit address 7812DF 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
CCA872 Air China 11 2026-06-07
CCA871 Air China 11 2026-06-07
CCA822 Air China 9 2026-06-01
CCA821 - 9 2026-07-01
CCA782 - 9 2026-07-12
CCA901 Air China 5 2026-05-29
CCA781 - 5 2026-07-11
CCA701 - 5 2026-07-14
CCA902 Air China 4 2026-05-29
CCA792 Air China 4 2026-05-29
CCA791 Air China 4 2026-05-29
CCA702 Air China 4 2026-05-26
CCA1208 - 4 2026-07-03
CCA1207 - 4 2026-07-03
CCA800 Air China 3 2026-05-27
CCA906 Air China 2 2026-07-06
CCA799 Air China 2 2026-05-20
CCA778 - 2 2026-07-07
CCA1933 - 2 2026-07-05
CCA1491 - 2 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CCA701 - Jul 14, 09:40 UTCJul 14, 13:45 UTC4h 5m
2026-07-14 CCA1491 - Jul 14, 01:35 UTCJul 14, 01:55 UTC20m
2026-07-13 CCA1244 - Jul 13, 14:20 UTCJul 13, 14:40 UTC20m
2026-07-12 CCA1256 - Jul 12, 17:40 UTCJul 12, 17:55 UTC15m
2026-07-12 CCA782 - Jul 12, 05:45 UTCJul 12, 06:05 UTC20m
2026-07-11 CCA782 - Jul 11, 18:35 UTCJul 11, 19:05 UTC30m
2026-07-11 CCA781 - Jul 11, 12:10 UTCJul 11, 16:10 UTC4h 0m
2026-07-10 CCA1242 - Jul 10, 15:30 UTCJul 10, 16:05 UTC35m
2026-07-10 CCA1241 - Jul 10, 07:40 UTCJul 10, 08:00 UTC20m
2026-07-10 CCA782 - Jul 10, 05:20 UTCJul 10, 05:35 UTC15m
2026-07-09 CCA782 - Jul 9, 18:40 UTCJul 9, 19:10 UTC30m
2026-07-09 CCA781 - Jul 9, 05:20 UTCJul 9, 16:20 UTC11h 0m
2026-07-09 CCA1545 - Jul 9, 00:35 UTCJul 9, 00:50 UTC15m
2026-07-08 CCA1250 - Jul 8, 17:55 UTCJul 8, 18:10 UTC15m
2026-07-07 CCA778 - Jul 7, 23:55 UTCJul 8, 00:10 UTC15m
2026-07-07 CCA777 - Jul 7, 11:10 UTCJul 7, 11:30 UTC20m
2026-07-06 CCA906 RGN → PEK Jul 6, 19:00 UTCJul 6, 19:20 UTC20m
2026-07-06 CCA906 RGN → PEK Jul 6, 15:05 UTCJul 6, 15:55 UTC50m
2026-07-06 CCA905 PEK → RGN Jul 6, 07:05 UTCJul 6, 13:25 UTC6h 20m
2026-07-06 CCA1817 - Jul 6, 00:25 UTCJul 6, 00:35 UTC10m
2026-07-05 CCA1933 - Jul 5, 07:55 UTCJul 5, 08:15 UTC20m
2026-07-05 CCA782 - Jul 5, 05:15 UTCJul 5, 05:40 UTC25m
2026-07-04 CCA782 - Jul 4, 18:40 UTCJul 4, 19:10 UTC30m
2026-07-04 CCA781 - Jul 4, 05:15 UTCJul 4, 16:20 UTC11h 5m
2026-07-04 CCA118 - Jul 4, 00:55 UTCJul 4, 01:10 UTC15m
2026-07-03 CCA117 - Jul 3, 10:25 UTCJul 3, 13:20 UTC2h 55m
2026-07-03 CCA1208 - Jul 3, 07:15 UTCJul 3, 07:35 UTC20m
2026-07-03 CCA1207 - Jul 3, 02:40 UTCJul 3, 03:05 UTC25m
2026-07-02 CCA778 - Jul 2, 20:50 UTCJul 2, 21:10 UTC20m
2026-07-02 CCA1273 - Jul 2, 00:55 UTCJul 2, 01:20 UTC25m
2026-07-01 CCA821 - Jul 1, 05:05 UTCJul 1, 15:20 UTC10h 15m
2026-06-30 CCA724 - Jun 30, 12:05 UTCJun 30, 12:25 UTC20m
2026-06-30 CCA723 - Jun 30, 07:35 UTCJun 30, 07:50 UTC15m
2026-06-29 CCA1453 - Jun 29, 23:44 UTCJun 30, 00:04 UTC20m
2026-06-29 CCA1399 - Jun 29, 02:20 UTCJun 29, 02:39 UTC20m
2026-06-08 CCA821 PEK → HKT Jun 8, 05:40 UTCJun 8, 13:55 UTC8h 15m
2026-06-07 CCA872 KUL → PEK Jun 7, 16:35 UTCJun 7, 20:10 UTC3h 35m
2026-06-07 CCA871 PEK → KUL Jun 7, 08:45 UTCJun 7, 14:40 UTC5h 55m
2026-06-07 CCA1404 KMG → PEK Jun 7, 06:10 UTCJun 7, 06:30 UTC20m
2026-06-06 CCA1403 PEK → KMG Jun 6, 22:55 UTCJun 6, 23:15 UTC20m
2026-06-06 CCA1250 KHG → PEK Jun 6, 16:50 UTCJun 6, 17:10 UTC20m
2026-06-06 CCA1249 PEK → KHG Jun 6, 06:35 UTCJun 6, 06:55 UTC20m
2026-06-05 CCA1609 PEK → CGQ Jun 5, 23:40 UTCJun 5, 23:50 UTC10m
2026-06-05 CCA821 PEK → HKT Jun 5, 05:05 UTCJun 5, 15:15 UTC10h 10m
2026-06-04 CCA980 BKK → PEK Jun 4, 18:45 UTCJun 4, 19:40 UTC55m
2026-06-04 CCA979 PEK → BKK Jun 4, 12:15 UTCJun 4, 16:50 UTC4h 35m
2026-06-04 CCA1208 LHW → PEK Jun 4, 08:55 UTCJun 4, 09:20 UTC25m
2026-06-04 CCA1207 PEK → LHW Jun 4, 02:35 UTCJun 4, 03:00 UTC25m
2026-06-03 CCA1902 URC → PEK Jun 3, 09:50 UTCJun 3, 10:10 UTC20m
2026-06-03 CCA1901 PEK → URC Jun 3, 01:45 UTCJun 3, 01:55 UTC10m

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-1396 page for operator, model, and routing details .

Mode-S 7812DF frequently asked

What is Mode-S code 7812DF?
7812DF is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1396.
Where is Mode-S 7812DF registered?
Mode-S code 7812DF is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812DF 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 7812DF, octal 36011337, decimal 7,869,151.
What flights does 7812DF operate?
Mode-S 7812DF has broadcast 20 distinct callsigns, including CCA872, CCA871, CCA822, CCA821, CCA782.