Apparatus

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sensors Mode-S transponder

7812A0

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1341 · BOEING 787-9 Dreamliner

Hex
7812A0
Octal
36011240
Decimal
7,869,088
Country
CN
Tail
B-1341
Type
B789
No current signal · last broadcast 17h ago
Flights observed
144
Distinct callsigns
20
Country
CN
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 7812A0.

Country allocation

The ICAO 24-bit address 7812A0 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
CHH7963 - 7 2026-07-13
CHH7911 - 7 2026-07-08
CHH7964 - 6 2026-07-13
CHH7703 - 6 2026-07-03
CHH7157 - 6 2026-06-30
CHH7711 Hainan Airlines 5 2026-05-24
CHH7912 - 4 2026-07-08
CHH776 Hainan Airlines 4 2026-04-30
CHH761 - 4 2026-06-28
CHH757 Hainan Airlines 4 2026-05-24
CHH7395 - 4 2026-06-30
CHH492 Hainan Airlines 4 2026-05-07
CHH489 - 4 2026-06-17
CHH408 - 4 2026-07-04
CHH775 Hainan Airlines 3 2026-04-29
CHH7712 - 3 2026-06-20
CHH762 - 3 2026-06-29
CHH758 Hainan Airlines 3 2026-05-25
CHH7158 - 3 2026-07-01
CHH407 - 3 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CHH7964 - Jul 13, 21:30 UTCJul 14, 03:50 UTC6h 20m
2026-07-13 CHH7963 - Jul 13, 11:35 UTCJul 13, 18:25 UTC6h 50m
2026-07-10 CHH7964 - Jul 10, 21:30 UTCJul 11, 04:01 UTC6h 30m
2026-07-10 CHH7963 - Jul 10, 11:25 UTCJul 10, 18:15 UTC6h 50m
2026-07-08 CHH7912 - Jul 8, 21:20 UTCJul 9, 04:00 UTC6h 40m
2026-07-08 CHH7911 - Jul 8, 11:25 UTCJul 8, 18:00 UTC6h 35m
2026-07-06 CHH7964 - Jul 6, 21:10 UTCJul 7, 03:20 UTC6h 10m
2026-07-06 CHH7963 - Jul 6, 11:35 UTCJul 6, 18:20 UTC6h 45m
2026-07-05 CHH7182 - Jul 5, 06:15 UTCJul 5, 06:35 UTC20m
2026-07-04 CHH408 - Jul 4, 22:05 UTCJul 4, 22:20 UTC15m
2026-07-04 CHH408 EDI → ABA Jul 4, 13:40 UTCJul 4, 19:45 UTC6h 5m
2026-07-03 CHH407 - Jul 3, 23:05 UTCJul 4, 05:45 UTC6h 40m
2026-07-03 CHH407 - Jul 3, 20:00 UTCJul 3, 20:10 UTC10m
2026-07-03 CHH7714 - Jul 3, 15:30 UTCJul 3, 15:40 UTC10m
2026-07-03 CHH7025 - Jul 3, 10:45 UTCJul 3, 11:10 UTC25m
2026-07-03 CHH7703 - Jul 3, 05:00 UTCJul 3, 05:15 UTC15m
2026-07-03 CHH7703 - Jul 3, 02:05 UTCJul 3, 02:25 UTC20m
2026-07-02 CHH408 - Jul 2, 19:50 UTCJul 2, 20:05 UTC15m
2026-07-02 CHH408 - Jul 2, 11:35 UTCJul 2, 17:30 UTC5h 55m
2026-07-01 CHH407 - Jul 1, 20:05 UTCJul 2, 06:00 UTC9h 55m
2026-07-01 CHH7024 - Jul 1, 07:20 UTCJul 1, 07:30 UTC10m
2026-07-01 CHH7158 - Jul 1, 05:00 UTCJul 1, 05:10 UTC10m
2026-06-30 CHH7157 - Jun 30, 23:50 UTCJul 1, 00:05 UTC15m
2026-06-30 CHH7395 - Jun 30, 06:35 UTCJun 30, 06:45 UTC10m
2026-06-29 CHH762 - Jun 29, 20:00 UTCJun 29, 20:09 UTC10m
2026-06-29 CHH762 - Jun 29, 10:24 UTCJun 29, 13:24 UTC3h 0m
2026-06-28 CHH761 - Jun 28, 23:14 UTCJun 29, 05:00 UTC5h 45m
2026-06-28 CHH761 - Jun 28, 18:19 UTCJun 28, 18:29 UTC10m
2026-06-28 CHH7852 URC → SZX Jun 28, 15:29 UTCJun 28, 15:40 UTC10m
2026-06-23 - - Jun 23, 13:15 UTCJun 23, 13:24 UTC10m
2026-06-23 CHH7706 - Jun 23, 05:29 UTCJun 23, 05:39 UTC10m
2026-06-23 CHH7701 - Jun 23, 03:20 UTCJun 23, 03:34 UTC15m
2026-06-23 CHH7701 - Jun 23, 00:54 UTCJun 23, 01:15 UTC20m
2026-06-22 CHH7809 - Jun 22, 07:00 UTCJun 22, 07:10 UTC10m
2026-06-21 CHH7577 PEK → HGH Jun 21, 23:24 UTCJun 21, 23:34 UTC10m
2026-06-21 CHH752 - Jun 21, 11:24 UTCJun 21, 20:29 UTC9h 5m
2026-06-20 CHH751 - Jun 20, 21:55 UTCJun 21, 04:54 UTC7h 0m
2026-06-20 CHH7712 - Jun 20, 10:29 UTCJun 20, 10:39 UTC10m
2026-06-19 CHH7475 - Jun 19, 10:04 UTCJun 19, 10:24 UTC20m
2026-06-19 CHH7394 - Jun 19, 07:54 UTCJun 19, 08:14 UTC20m
2026-06-18 CHH7476 TFU → SZX Jun 18, 22:05 UTCJun 18, 22:35 UTC30m
2026-06-18 CHH7475 - Jun 18, 16:35 UTCJun 18, 16:50 UTC15m
2026-06-18 CHH7709 - Jun 18, 14:25 UTCJun 18, 14:35 UTC10m
2026-06-17 CHH490 BER → PEK Jun 17, 12:05 UTCJun 17, 17:50 UTC5h 45m
2026-06-17 CHH489 - Jun 17, 04:00 UTCJun 17, 04:25 UTC25m
2026-06-16 CHH489 - Jun 16, 22:40 UTCJun 17, 02:15 UTC3h 35m
2026-06-15 CHH490 BER → PEK Jun 15, 12:05 UTCJun 15, 17:54 UTC5h 50m
2026-06-15 CHH489 - Jun 15, 04:00 UTCJun 15, 04:20 UTC20m
2026-06-14 CHH489 - Jun 14, 22:40 UTCJun 15, 02:10 UTC3h 30m
2026-06-13 CHH7601 PEK → SHA Jun 13, 00:05 UTCJun 13, 00:15 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-1341 page for operator, model, and routing details .

Mode-S 7812A0 frequently asked

What is Mode-S code 7812A0?
7812A0 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1341.
Where is Mode-S 7812A0 registered?
Mode-S code 7812A0 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812A0 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812A0, octal 36011240, decimal 7,869,088.
What flights does 7812A0 operate?
Mode-S 7812A0 has broadcast 20 distinct callsigns, including CHH7963, CHH7911, CHH7964, CHH7703, CHH7157.