Apparatus

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sensors Mode-S transponder

7812EE

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1388 · BOEING 737 MAX 8

Hex
7812EE
Octal
36011356
Decimal
7,869,166
Country
CN
Tail
B-1388
Type
B38M
No current signal · last broadcast Jul 26, 19:30 UTC
Flights observed
212
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 19:30 UTC

Last known position

Most recent position reported by Mode-S 7812EE.

Country allocation

The ICAO 24-bit address 7812EE 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
CHH473 Hainan Airlines 10 2026-07-26
CHH474 Hainan Airlines 7 2026-07-26
CHH447 Hainan Airlines 7 2026-05-17
CHH7772 - 6 2026-07-04
CHH701 - 6 2026-07-18
CHH7996 Hainan Airlines 5 2026-07-26
CHH7995 Hainan Airlines 5 2026-07-26
CHH7769 - 5 2026-07-02
CHH755 Hainan Airlines 5 2026-07-20
CHH7156 - 5 2026-07-03
CHH7155 - 5 2026-07-03
CHH702 - 5 2026-07-18
CHH7909 Hainan Airlines 4 2026-04-30
CHH7771 - 4 2026-06-08
CHH7715 - 4 2026-06-29
CHH748 Hainan Airlines 4 2026-05-23
CHH448 Hainan Airlines 4 2026-05-17
CHH7811 - 3 2026-07-17
CHH7733 - 3 2026-06-28
CHH747 Hainan Airlines 3 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CHH7996 BKK → PEK Jul 26, 19:10 UTCJul 26, 19:30 UTC20m
2026-07-26 CHH7996 BKK → PEK Jul 26, 17:50 UTCJul 26, 18:10 UTC20m
2026-07-26 CHH7995 PEK → BKK Jul 26, 11:15 UTCJul 26, 15:40 UTC4h 25m
2026-07-26 CHH474 KIX → PEK Jul 26, 05:30 UTCJul 26, 07:05 UTC1h 36m
2026-07-26 CHH473 PEK → KIX Jul 26, 01:50 UTCJul 26, 03:25 UTC1h 35m
2026-07-25 CHH7996 BKK → PEK Jul 25, 18:05 UTCJul 25, 19:50 UTC1h 45m
2026-07-25 CHH7995 PEK → BKK Jul 25, 11:25 UTCJul 25, 15:45 UTC4h 20m
2026-07-25 CHH474 KIX → PEK Jul 25, 05:35 UTCJul 25, 07:05 UTC1h 30m
2026-07-25 CHH473 PEK → KIX Jul 25, 01:45 UTCJul 25, 03:20 UTC1h 35m
2026-07-24 CHH7996 BKK → PEK Jul 24, 17:30 UTCJul 24, 22:00 UTC4h 30m
2026-07-24 CHH7995 PEK → BKK Jul 24, 15:10 UTCJul 24, 15:35 UTC25m
2026-07-24 CHH7995 PEK → BKK Jul 24, 11:10 UTCJul 24, 14:15 UTC3h 5m
2026-07-24 CHH474 KIX → PEK Jul 24, 05:55 UTCJul 24, 07:25 UTC1h 30m
2026-07-24 CHH473 PEK → KIX Jul 24, 01:50 UTCJul 24, 03:40 UTC1h 50m
2026-07-24 CHH473 PEK → KIX Jul 24, 00:50 UTCJul 24, 01:00 UTC10m
2026-07-23 CHH7147 PEK → TFU Jul 23, 00:15 UTCJul 23, 00:30 UTC15m
2026-07-22 CHH7448 - Jul 22, 14:15 UTCJul 22, 14:40 UTC25m
2026-07-21 CHH7577 PEK → HGH Jul 21, 23:30 UTCJul 21, 23:45 UTC15m
2026-07-20 CHH7043 HAK → TNA Jul 20, 13:35 UTCJul 21, 08:10 UTC18h 34m
2026-07-20 CHH756 KUL → HAK Jul 20, 13:20 UTCJul 21, 08:10 UTC18h 49m
2026-07-20 CHH755 HAK → KUL Jul 20, 11:00 UTCJul 20, 11:35 UTC35m
2026-07-19 CHH755 HAK → KUL Jul 19, 15:35 UTCJul 20, 11:35 UTC20h 0m
2026-07-19 CHH755 HAK → KUL Jul 19, 12:15 UTCJul 20, 11:30 UTC23h 15m
2026-07-19 CHH7074 - Jul 19, 02:25 UTCJul 19, 15:40 UTC13h 15m
2026-07-18 CHH702 - Jul 18, 13:35 UTCJul 19, 12:20 UTC22h 45m
2026-07-18 CHH702 - Jul 18, 12:25 UTCJul 19, 07:20 UTC18h 55m
2026-07-18 CHH701 - Jul 18, 10:45 UTCJul 18, 11:05 UTC20m
2026-07-18 CHH7482 PEK → HAK Jul 18, 01:25 UTCJul 18, 09:35 UTC8h 11m
2026-07-17 CHH7811 - Jul 17, 08:59 UTCJul 17, 09:15 UTC15m
2026-07-16 CHH7811 - Jul 16, 09:10 UTCJul 16, 09:30 UTC20m
2026-07-16 CHH7147 - Jul 16, 00:30 UTCJul 16, 00:50 UTC20m
2026-07-15 CHH7811 - Jul 15, 08:55 UTCJul 15, 09:05 UTC10m
2026-07-15 CHH7248 - Jul 15, 06:40 UTCJul 15, 06:50 UTC10m
2026-07-15 CHH7147 - Jul 15, 00:15 UTCJul 15, 00:35 UTC20m
2026-07-14 CHH7143 - Jul 14, 07:10 UTCJul 14, 07:20 UTC10m
2026-07-13 CHH7143 - Jul 13, 07:10 UTCJul 13, 07:20 UTC10m
2026-07-12 CHH7809 - Jul 12, 06:50 UTCJul 12, 07:10 UTC20m
2026-07-11 CHH7238 - Jul 11, 09:00 UTCJul 11, 09:35 UTC35m
2026-07-11 CHH7237 - Jul 11, 03:25 UTCJul 11, 03:45 UTC20m
2026-07-10 CHH7996 - Jul 10, 17:30 UTCJul 10, 19:05 UTC1h 35m
2026-07-10 CHH7995 - Jul 10, 11:50 UTCJul 10, 16:05 UTC4h 15m
2026-07-10 CHH474 - Jul 10, 05:30 UTCJul 10, 06:50 UTC1h 20m
2026-07-10 CHH473 - Jul 10, 02:05 UTCJul 10, 03:35 UTC1h 30m
2026-07-10 CHH473 - Jul 10, 01:00 UTCJul 10, 01:10 UTC10m
2026-07-09 CHH7279 - Jul 9, 05:35 UTCJul 9, 05:50 UTC15m
2026-07-09 CHH7198 - Jul 9, 03:45 UTCJul 9, 04:10 UTC25m
2026-07-08 CHH7197 PEK → LHW Jul 8, 23:05 UTCJul 8, 23:30 UTC25m
2026-07-07 CHH702 - Jul 7, 12:55 UTCJul 7, 14:25 UTC1h 30m
2026-07-07 CHH701 - Jul 7, 10:35 UTCJul 7, 10:50 UTC15m
2026-07-06 CHH792 - Jul 6, 06:20 UTCJul 6, 10:30 UTC4h 10m

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-1388 page for operator, model, and routing details .

Mode-S 7812EE frequently asked

What is Mode-S code 7812EE?
7812EE is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1388.
Where is Mode-S 7812EE registered?
Mode-S code 7812EE is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812EE broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812EE, octal 36011356, decimal 7,869,166.
What flights does 7812EE operate?
Mode-S 7812EE has broadcast 20 distinct callsigns, including CHH473, CHH474, CHH447, CHH7772, CHH701.