Apparatus

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sensors Mode-S transponder

7812ED

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1387 · BOEING 737 MAX 8

Hex
7812ED
Octal
36011355
Decimal
7,869,165
Country
CN
Tail
B-1387
Type
B38M
Broadcasting now · callsign CHH7629 · 12,800 ft
Flights observed
153
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 08:30 UTC

Current position

7812ED is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7812ED 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
CHH7522 - 26 2026-06-26
CHH7923 - 13 2026-06-17
CHH7924 - 11 2026-06-17
CHH473 Hainan Airlines 10 2026-07-20
CHH474 - 9 2026-07-20
CHH7338 Hainan Airlines 5 2026-06-02
CHH7996 - 4 2026-07-19
CHH7995 - 4 2026-07-19
CHH7337 Hainan Airlines 4 2026-05-30
CHH7716 - 3 2026-06-28
CHH7915 - 2 2026-07-14
CHH7811 - 2 2026-07-12
CHH7777 Hainan Airlines 2 2026-07-25
CHH7715 - 2 2026-06-20
CHH7709 - 2 2026-06-28
CHH7613 Hainan Airlines 2 2026-07-06
CHH7559 Hainan Airlines 2 2026-04-25
CHH7350 Hainan Airlines 2 2026-06-18
CHH7156 - 2 2026-06-30
CHH7155 - 2 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CHH7347 PEK → TFU Jul 26, 08:15 UTCJul 26, 08:30 UTC15m
2026-07-25 CHH7777 PEK → BAR Jul 25, 06:10 UTCJul 25, 06:30 UTC20m
2026-07-24 CHH7138 XIY → PEK Jul 24, 22:55 UTCJul 25, 04:20 UTC5h 25m
2026-07-24 CHH7290 - Jul 24, 13:15 UTCJul 24, 13:45 UTC30m
2026-07-22 CHH6355 - Jul 22, 01:20 UTCJul 22, 01:40 UTC20m
2026-07-20 CHH7082 PEK → HAK Jul 20, 13:10 UTCJul 20, 13:45 UTC35m
2026-07-20 CHH474 - Jul 20, 05:30 UTCJul 20, 07:00 UTC1h 30m
2026-07-20 CHH473 PEK → KIX Jul 20, 01:55 UTCJul 20, 03:45 UTC1h 50m
2026-07-19 CHH7996 - Jul 19, 19:00 UTCJul 19, 19:20 UTC20m
2026-07-19 CHH7996 - Jul 19, 17:40 UTCJul 19, 18:05 UTC25m
2026-07-19 CHH7995 - Jul 19, 15:10 UTCJul 19, 15:25 UTC15m
2026-07-19 CHH7995 - Jul 19, 11:10 UTCJul 19, 14:05 UTC2h 55m
2026-07-19 CHH474 - Jul 19, 05:35 UTCJul 19, 07:10 UTC1h 35m
2026-07-19 CHH473 PEK → KIX Jul 19, 01:50 UTCJul 19, 03:25 UTC1h 35m
2026-07-18 CHH474 - Jul 18, 05:35 UTCJul 18, 07:10 UTC1h 35m
2026-07-18 CHH473 PEK → KIX Jul 18, 01:50 UTCJul 18, 03:30 UTC1h 41m
2026-07-17 CHH6267 - Jul 17, 11:35 UTCJul 17, 11:45 UTC10m
2026-07-17 CHH474 - Jul 17, 05:45 UTCJul 17, 07:14 UTC1h 30m
2026-07-17 CHH473 - Jul 17, 01:55 UTCJul 17, 03:25 UTC1h 30m
2026-07-16 CHH6375 - Jul 16, 10:45 UTCJul 16, 10:59 UTC15m
2026-07-16 CHH7801 - Jul 16, 01:30 UTCJul 16, 01:50 UTC20m
2026-07-14 CHH706 - Jul 14, 14:00 UTCJul 14, 14:10 UTC10m
2026-07-14 CHH7915 - Jul 14, 11:55 UTCJul 14, 12:30 UTC35m
2026-07-14 CHH7915 - Jul 14, 05:30 UTCJul 14, 09:40 UTC4h 10m
2026-07-14 CHH7916 - Jul 14, 03:10 UTCJul 14, 03:20 UTC10m
2026-07-14 CHH705 - Jul 14, 00:35 UTCJul 14, 01:05 UTC30m
2026-07-13 CHH7082 - Jul 13, 11:20 UTCJul 13, 11:40 UTC20m
2026-07-13 CHH474 - Jul 13, 05:40 UTCJul 13, 07:01 UTC1h 20m
2026-07-13 CHH473 - Jul 13, 02:01 UTCJul 13, 03:30 UTC1h 30m
2026-07-12 CHH7811 - Jul 12, 08:50 UTCJul 12, 09:10 UTC20m
2026-07-10 CHH7074 - Jul 10, 11:45 UTCJul 11, 07:15 UTC19h 31m
2026-07-10 CHH7238 - Jul 10, 08:40 UTCJul 10, 09:00 UTC20m
2026-07-10 CHH7237 - Jul 10, 03:40 UTCJul 10, 03:55 UTC15m
2026-07-09 CHH7167 - Jul 9, 00:20 UTCJul 9, 00:40 UTC20m
2026-07-07 CHH7435 - Jul 7, 10:00 UTCJul 7, 10:15 UTC15m
2026-07-06 CHH7613 PEK → PVG Jul 6, 23:50 UTCJul 7, 00:00 UTC10m
2026-07-06 CHH7807 - Jul 6, 04:50 UTCJul 6, 05:05 UTC15m
2026-07-05 CHH7805 - Jul 5, 03:25 UTCJul 5, 03:45 UTC20m
2026-07-04 CHH7816 - Jul 4, 20:15 UTCJul 4, 20:25 UTC10m
2026-07-04 CHH7811 - Jul 4, 11:20 UTCJul 4, 11:30 UTC10m
2026-07-04 CHH7191 - Jul 4, 00:20 UTCJul 4, 00:35 UTC15m
2026-07-03 CHH7492 - Jul 3, 16:40 UTCJul 3, 16:50 UTC10m
2026-07-01 CHH7577 - Jul 1, 23:20 UTCJul 1, 23:30 UTC10m
2026-07-01 CHH7279 - Jul 1, 05:30 UTCJul 1, 05:45 UTC15m
2026-06-30 CHH7702 - Jun 30, 23:30 UTCJun 30, 23:40 UTC10m
2026-06-30 CHH7392 - Jun 30, 14:15 UTCJun 30, 14:40 UTC25m
2026-06-30 CHH7391 - Jun 30, 09:15 UTCJun 30, 09:25 UTC10m
2026-06-30 CHH7156 - Jun 30, 07:40 UTCJun 30, 08:00 UTC20m
2026-06-30 CHH7155 - Jun 30, 02:35 UTCJun 30, 02:45 UTC10m
2026-06-30 CHH7398 - Jun 30, 00:20 UTCJun 30, 00:39 UTC20m

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-1387 page for operator, model, and routing details .

Mode-S 7812ED frequently asked

What is Mode-S code 7812ED?
7812ED is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1387.
Where is Mode-S 7812ED registered?
Mode-S code 7812ED is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812ED broadcasting right now?
Yes. Mode-S 7812ED is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812ED, octal 36011355, decimal 7,869,165.
What flights does 7812ED operate?
Mode-S 7812ED has broadcast 20 distinct callsigns, including CHH7522, CHH7923, CHH7924, CHH473, CHH474.