Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7812EA

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1386 · BOEING 737-800

Hex
7812EA
Octal
36011352
Decimal
7,869,162
Country
CN
Tail
B-1386
Type
B738
No current signal · last broadcast Jul 24, 08:05 UTC
Flights observed
85
Distinct callsigns
20
Country
CN
Last broadcast
Jul 24, 08:05 UTC

Last known position

Most recent position reported by Mode-S 7812EA.

Country allocation

The ICAO 24-bit address 7812EA 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
CHH7191 Hainan Airlines 7 2026-06-08
CHH7195 Hainan Airlines 6 2026-06-05
CHH7512 - 4 2026-06-30
CHH7491 Hainan Airlines 4 2026-06-08
CHH7196 Hainan Airlines 3 2026-06-05
CHH7872 Hainan Airlines 2 2026-06-04
CHH7870 - 2 2026-06-24
CHH7815 - 2 2026-07-17
CHH7742 - 2 2026-07-11
CHH7730 - 2 2026-07-11
CHH7729 - 2 2026-07-11
CHH7715 - 2 2026-06-19
CHH7535 - 2 2026-07-07
CHH7522 - 2 2026-06-28
CHH7338 - 2 2026-07-21
CHH7337 - 2 2026-07-21
CHH7295 Hainan Airlines 2 2026-06-09
CHH6333 - 2 2026-07-16
CHH7874 - 1 2026-04-13
CHH7873 - 1 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 CHH7722 PVG → SZX Jul 24, 07:45 UTCJul 24, 08:05 UTC20m
2026-07-23 CHH7475 SZX → TFU Jul 23, 08:10 UTCJul 23, 08:20 UTC10m
2026-07-23 CHH7394 HGH → SZX Jul 23, 06:05 UTCJul 23, 06:25 UTC20m
2026-07-21 CHH7337 - Jul 21, 14:40 UTCJul 21, 14:55 UTC15m
2026-07-21 CHH7338 - Jul 21, 12:50 UTCJul 21, 13:10 UTC20m
2026-07-17 CHH7815 - Jul 17, 12:40 UTCJul 17, 12:55 UTC15m
2026-07-17 CHH7238 - Jul 17, 03:50 UTCJul 17, 08:59 UTC5h 10m
2026-07-16 CHH6333 - Jul 16, 08:45 UTCJul 16, 09:00 UTC15m
2026-07-15 CHH6333 - Jul 15, 09:05 UTCJul 15, 09:20 UTC15m
2026-07-12 CHH7276 - Jul 12, 12:30 UTCJul 12, 12:40 UTC10m
2026-07-12 CHH7275 - Jul 12, 06:40 UTCJul 12, 06:55 UTC15m
2026-07-11 CHH7730 - Jul 11, 16:05 UTCJul 11, 16:30 UTC25m
2026-07-11 CHH7729 - Jul 11, 05:50 UTCJul 11, 06:01 UTC10m
2026-07-11 CHH7742 - Jul 11, 02:05 UTCJul 11, 02:25 UTC20m
2026-07-07 CHH7535 - Jul 7, 15:30 UTCJul 7, 15:50 UTC20m
2026-07-07 CHH7236 - Jul 7, 12:55 UTCJul 7, 13:20 UTC25m
2026-07-06 CHH7535 - Jul 6, 15:35 UTCJul 6, 15:50 UTC15m
2026-07-06 CHH7164 - Jul 6, 04:40 UTCJul 6, 08:50 UTC4h 10m
2026-07-06 CHH7291 - Jul 6, 00:20 UTCJul 6, 00:30 UTC10m
2026-07-05 CHH7638 - Jul 5, 06:35 UTCJul 5, 06:50 UTC15m
2026-07-05 CHH7637 - Jul 5, 04:00 UTCJul 5, 04:15 UTC15m
2026-07-04 CHH6246 - Jul 4, 09:55 UTCJul 4, 10:20 UTC25m
2026-07-01 CHH7185 - Jul 1, 23:10 UTCJul 1, 23:30 UTC20m
2026-06-30 CHH7512 - Jun 30, 03:55 UTCJun 30, 04:05 UTC10m
2026-06-29 CHH7512 - Jun 29, 04:04 UTCJun 29, 04:14 UTC10m
2026-06-28 CHH7522 - Jun 28, 12:44 UTCJun 28, 13:00 UTC15m
2026-06-28 CHH7512 - Jun 28, 04:59 UTCJun 28, 05:15 UTC15m
2026-06-27 CHH7522 - Jun 27, 12:29 UTCJun 27, 12:39 UTC10m
2026-06-25 CHH7512 - Jun 25, 03:59 UTCJun 25, 04:14 UTC15m
2026-06-24 CHH7870 - Jun 24, 00:09 UTCJun 24, 00:20 UTC10m
2026-06-23 CHH7730 RIZ → SZX Jun 23, 16:20 UTCJun 23, 16:29 UTC10m
2026-06-23 CHH7729 - Jun 23, 06:09 UTCJun 23, 06:19 UTC10m
2026-06-23 CHH7742 - Jun 23, 02:15 UTCJun 23, 02:34 UTC20m
2026-06-19 CHH7739 SZX → TYN Jun 19, 22:30 UTCJun 19, 22:39 UTC10m
2026-06-19 CHH7715 - Jun 19, 16:34 UTCJun 19, 16:49 UTC15m
2026-06-19 CHH7715 - Jun 19, 13:59 UTCJun 19, 14:09 UTC10m
2026-06-15 CHH7354 CSX → SYX Jun 15, 01:10 UTCJun 15, 01:20 UTC10m
2026-06-13 CHH7179 PEK → SYX Jun 13, 01:45 UTCJun 13, 04:45 UTC2h 59m
2026-06-09 CHH7295 PEK → FOC Jun 9, 09:30 UTCJun 9, 09:40 UTC10m
2026-06-08 CHH7491 PEK → XMN Jun 8, 08:50 UTCJun 8, 09:00 UTC10m
2026-06-08 CHH7191 PEK → XMN Jun 8, 00:10 UTCJun 8, 00:20 UTC10m
2026-06-07 CHH7295 PEK → FOC Jun 7, 09:35 UTCJun 7, 09:45 UTC10m
2026-06-07 CHH7191 PEK → XMN Jun 7, 00:19 UTCJun 7, 00:30 UTC10m
2026-06-06 CHH7491 PEK → XMN Jun 6, 08:30 UTCJun 6, 08:45 UTC15m
2026-06-06 CHH7191 PEK → XMN Jun 6, 00:15 UTCJun 6, 00:25 UTC10m
2026-06-05 CHH7153 CAN → URC Jun 5, 10:00 UTCJun 5, 10:15 UTC15m
2026-06-05 CHH7196 FOC → PEK Jun 5, 07:30 UTCJun 5, 07:45 UTC15m
2026-06-05 CHH7195 PEK → FOC Jun 5, 01:15 UTCJun 5, 01:25 UTC10m
2026-06-04 CHH7338 XIY → PEK Jun 4, 11:35 UTCJun 4, 12:05 UTC30m
2026-06-04 CHH7872 SZX → XIY Jun 4, 05:10 UTCJun 4, 05:25 UTC15m

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-1386 page for operator, model, and routing details .

Mode-S 7812EA frequently asked

What is Mode-S code 7812EA?
7812EA is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1386.
Where is Mode-S 7812EA registered?
Mode-S code 7812EA is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812EA broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 08:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812EA, octal 36011352, decimal 7,869,162.
What flights does 7812EA operate?
Mode-S 7812EA has broadcast 20 distinct callsigns, including CHH7191, CHH7195, CHH7512, CHH7491, CHH7196.