Apparatus

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sensors Mode-S transponder

7812EB

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1390 · BOEING 737 MAX 8

Hex
7812EB
Octal
36011353
Decimal
7,869,163
Country
CN
Tail
B-1390
Type
B38M
No current signal · last broadcast Jul 26, 15:55 UTC
Flights observed
229
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 15:55 UTC

Last known position

Most recent position reported by Mode-S 7812EB.

Country allocation

The ICAO 24-bit address 7812EB 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
CHH430 - 11 2026-07-01
CHH473 - 10 2026-07-04
CHH429 - 10 2026-07-01
CHH7996 - 7 2026-07-03
CHH474 - 7 2026-07-04
CHH7398 - 6 2026-07-17
CHH7156 Hainan Airlines 6 2026-07-20
CHH7155 - 6 2026-07-22
CHH7995 - 5 2026-07-03
CHH791 - 5 2026-07-13
CHH7767 Hainan Airlines 5 2026-07-22
CHH450 - 5 2026-07-08
CHH7772 - 4 2026-06-18
CHH7771 - 4 2026-06-16
CHH7747 - 4 2026-06-17
CHH7734 Hainan Airlines 4 2026-06-19
CHH7435 - 4 2026-06-25
CHH706 Hainan Airlines 4 2026-05-26
CHH449 - 4 2026-07-08
CHH792 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CHH7522 ZUH → XIY Jul 26, 15:45 UTCJul 26, 15:55 UTC10m
2026-07-24 CHH7337 PEK → XIY Jul 24, 15:30 UTCJul 24, 15:55 UTC25m
2026-07-24 CHH7178 - Jul 24, 13:25 UTCJul 24, 13:40 UTC15m
2026-07-24 CHH7477 PEK → HGH Jul 24, 04:10 UTCJul 24, 04:25 UTC15m
2026-07-23 CHH7395 SZX → HGH Jul 23, 07:20 UTCJul 23, 12:15 UTC4h 55m
2026-07-22 CHH7767 SZX → KMG Jul 22, 23:50 UTCJul 23, 00:05 UTC15m
2026-07-22 CHH6206 PVG → SZX Jul 22, 15:50 UTCJul 22, 17:15 UTC1h 25m
2026-07-22 CHH6205 - Jul 22, 11:20 UTCJul 22, 11:35 UTC15m
2026-07-22 CHH7155 - Jul 22, 02:25 UTCJul 22, 02:35 UTC10m
2026-07-21 CHH6335 - Jul 21, 06:50 UTCJul 21, 07:05 UTC15m
2026-07-20 CHH7767 SZX → KMG Jul 20, 23:50 UTCJul 21, 00:00 UTC10m
2026-07-20 CHH7256 NKG → SZX Jul 20, 15:50 UTCJul 20, 16:35 UTC45m
2026-07-20 CHH7156 NKG → SZX Jul 20, 08:05 UTCJul 20, 08:50 UTC45m
2026-07-20 CHH7155 - Jul 20, 03:20 UTCJul 20, 03:30 UTC10m
2026-07-19 CHH7396 - Jul 19, 12:25 UTCJul 19, 12:35 UTC10m
2026-07-19 CHH7395 - Jul 19, 07:35 UTCJul 19, 07:45 UTC10m
2026-07-18 CHH7767 - Jul 18, 23:45 UTCJul 18, 23:55 UTC10m
2026-07-18 CHH7392 - Jul 18, 14:45 UTCJul 18, 15:30 UTC45m
2026-07-18 CHH7391 - Jul 18, 10:20 UTCJul 18, 10:30 UTC10m
2026-07-18 CHH7156 NKG → SZX Jul 18, 07:55 UTCJul 18, 08:15 UTC20m
2026-07-17 CHH7398 - Jul 17, 23:55 UTCJul 18, 00:35 UTC40m
2026-07-17 CHH7397 - Jul 17, 15:10 UTCJul 17, 15:20 UTC10m
2026-07-17 CHH7396 - Jul 17, 11:10 UTCJul 17, 11:50 UTC40m
2026-07-17 CHH7768 - Jul 17, 04:49 UTCJul 17, 04:59 UTC10m
2026-07-16 CHH7767 - Jul 16, 23:49 UTCJul 16, 23:59 UTC10m
2026-07-16 CHH6205 - Jul 16, 09:25 UTCJul 16, 09:40 UTC15m
2026-07-16 CHH7722 - Jul 16, 07:35 UTCJul 16, 08:10 UTC35m
2026-07-15 CHH7688 - Jul 15, 00:05 UTCJul 15, 11:50 UTC11h 45m
2026-07-13 CHH792 - Jul 13, 06:25 UTCJul 13, 10:20 UTC3h 55m
2026-07-13 CHH791 - Jul 13, 00:05 UTCJul 13, 04:10 UTC4h 5m
2026-07-12 CHH7074 - Jul 12, 06:50 UTCJul 12, 15:50 UTC9h 0m
2026-07-10 CHH7910 - Jul 10, 20:40 UTCJul 10, 21:05 UTC25m
2026-07-10 CHH447 - Jul 10, 06:20 UTCJul 10, 18:50 UTC12h 30m
2026-07-08 CHH450 - Jul 8, 13:50 UTCJul 9, 02:10 UTC12h 20m
2026-07-08 CHH449 - Jul 8, 09:30 UTCJul 8, 12:35 UTC3h 5m
2026-07-06 CHH756 - Jul 6, 13:20 UTCJul 7, 07:05 UTC17h 45m
2026-07-06 CHH755 - Jul 6, 05:50 UTCJul 6, 11:25 UTC5h 35m
2026-07-05 CHH7088 - Jul 5, 08:15 UTCJul 5, 08:40 UTC25m
2026-07-04 CHH7088 - Jul 4, 11:40 UTCJul 5, 08:40 UTC21h 0m
2026-07-04 CHH474 - Jul 4, 05:40 UTCJul 4, 07:15 UTC1h 35m
2026-07-04 CHH473 - Jul 4, 02:20 UTCJul 4, 03:55 UTC1h 35m
2026-07-03 CHH7996 - Jul 3, 17:20 UTCJul 3, 19:10 UTC1h 50m
2026-07-03 CHH7995 - Jul 3, 11:15 UTCJul 3, 15:40 UTC4h 25m
2026-07-03 CHH474 - Jul 3, 06:05 UTCJul 3, 07:45 UTC1h 40m
2026-07-03 CHH473 - Jul 3, 02:05 UTCJul 3, 03:45 UTC1h 40m
2026-07-02 CHH7996 - Jul 2, 17:40 UTCJul 2, 19:30 UTC1h 50m
2026-07-02 CHH7995 - Jul 2, 11:25 UTCJul 2, 15:50 UTC4h 25m
2026-07-02 CHH7238 - Jul 2, 08:10 UTCJul 2, 08:30 UTC20m
2026-07-01 CHH7367 - Jul 1, 13:20 UTCJul 1, 13:40 UTC20m
2026-07-01 CHH430 - Jul 1, 07:05 UTCJul 1, 08:55 UTC1h 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-1390 page for operator, model, and routing details .

Mode-S 7812EB frequently asked

What is Mode-S code 7812EB?
7812EB is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1390.
Where is Mode-S 7812EB registered?
Mode-S code 7812EB is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812EB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812EB, octal 36011353, decimal 7,869,163.
What flights does 7812EB operate?
Mode-S 7812EB has broadcast 20 distinct callsigns, including CHH430, CHH473, CHH429, CHH7996, CHH474.