Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7812F0

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1391 · BOEING 737-800

Hex
7812F0
Octal
36011360
Decimal
7,869,168
Country
CN
Tail
B-1391
Type
B738
No current signal · last broadcast 1d ago
Flights observed
88
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7812F0.

Country allocation

The ICAO 24-bit address 7812F0 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
YZR7579 - 18 2026-06-23
YZR7525 - 10 2026-07-12
YZR7537 Yangtze River Express 7 2026-06-02
YZR7565 - 5 2026-06-12
YZR7526 - 5 2026-07-04
YZR7591 Yangtze River Express 4 2026-07-05
YZR7573 - 4 2026-07-12
YZR7580 Yangtze River Express 3 2026-06-02
YZR7563 - 3 2026-06-15
YZR7527 - 3 2026-07-04
YZR7599 - 2 2026-07-12
YZR7569 Yangtze River Express 2 2026-06-18
YZR7532 - 2 2026-06-29
YZR7531 - 2 2026-06-29
YZR7501 Yangtze River Express 2 2026-05-04
YZR7596 - 1 2026-04-20
YZR7595 Yangtze River Express 1 2026-04-20
YZR7588 - 1 2026-07-12
YZR7586 - 1 2026-04-21
YZR7578 - 1 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 YZR7525 - Jul 12, 22:20 UTCJul 12, 22:30 UTC10m
2026-07-12 YZR7573 - Jul 12, 10:20 UTCJul 12, 10:30 UTC10m
2026-07-12 YZR7599 - Jul 12, 08:25 UTCJul 12, 09:05 UTC40m
2026-07-12 YZR7588 - Jul 12, 03:30 UTCJul 12, 03:45 UTC15m
2026-07-12 YZR1391 - Jul 12, 00:15 UTCJul 12, 00:35 UTC20m
2026-07-06 YZR7599 - Jul 6, 18:25 UTCJul 6, 18:40 UTC15m
2026-07-06 YZR7557 - Jul 6, 06:20 UTCJul 6, 06:30 UTC10m
2026-07-05 YZR7591 SZX → ACX Jul 5, 22:45 UTCJul 5, 23:05 UTC20m
2026-07-04 YZR7527 - Jul 4, 23:30 UTCJul 4, 23:40 UTC10m
2026-07-04 YZR7526 - Jul 4, 21:00 UTCJul 4, 21:10 UTC10m
2026-07-02 YZR7525 - Jul 2, 22:30 UTCJul 2, 22:40 UTC10m
2026-07-01 YZR7526 - Jul 1, 17:25 UTCJul 1, 17:35 UTC10m
2026-06-29 YZR7532 - Jun 29, 16:10 UTCJun 29, 16:19 UTC10m
2026-06-29 YZR7531 - Jun 29, 01:39 UTCJun 29, 01:50 UTC10m
2026-06-28 YZR7526 - Jun 28, 18:00 UTCJun 28, 18:14 UTC15m
2026-06-27 YZR7525 - Jun 27, 22:35 UTCJun 27, 22:45 UTC10m
2026-06-25 YZR7525 - Jun 25, 22:24 UTCJun 25, 22:34 UTC10m
2026-06-25 YZR7532 - Jun 25, 19:24 UTCJun 25, 19:39 UTC15m
2026-06-25 YZR7531 - Jun 25, 01:35 UTCJun 25, 09:59 UTC8h 25m
2026-06-23 YZR7527 - Jun 23, 23:10 UTCJun 23, 23:19 UTC10m
2026-06-23 YZR7579 - Jun 23, 06:04 UTCJun 23, 06:19 UTC15m
2026-06-22 - - Jun 22, 13:54 UTCJun 22, 14:19 UTC25m
2026-06-21 YZR7578 - Jun 21, 15:15 UTCJun 21, 15:25 UTC10m
2026-06-21 YZR7573 - Jun 21, 08:44 UTCJun 21, 09:00 UTC15m
2026-06-18 YZR7569 SZX → CGO Jun 18, 00:15 UTCJun 18, 00:25 UTC10m
2026-06-15 YZR7563 - Jun 15, 06:30 UTCJun 15, 06:40 UTC10m
2026-06-14 YZR7591 SZX → ACX Jun 14, 23:35 UTCJun 14, 23:50 UTC15m
2026-06-14 YZR7591 SZX → ACX Jun 14, 22:40 UTCJun 14, 22:50 UTC10m
2026-06-12 YZR7565 - Jun 12, 23:10 UTCJun 12, 23:20 UTC10m
2026-06-11 YZR7544 HRB → CGO Jun 11, 12:15 UTCJun 11, 12:25 UTC10m
2026-06-11 YZR7543 CGO → HRB Jun 11, 08:00 UTCJun 11, 08:20 UTC20m
2026-06-05 YZR7526 TNA → SZX Jun 5, 17:35 UTCJun 5, 17:45 UTC10m
2026-06-03 YZR7525 SZX → TNA Jun 3, 22:25 UTCJun 3, 22:35 UTC10m
2026-06-03 YZR7579 PVG → ZUH Jun 3, 05:50 UTCJun 3, 08:50 UTC3h 0m
2026-06-02 YZR7537 SZX → KWE Jun 2, 22:50 UTCJun 2, 23:00 UTC10m
2026-06-02 YZR7580 ZUH → PVG Jun 2, 08:45 UTCJun 2, 08:55 UTC10m
2026-06-02 YZR7579 PVG → ZUH Jun 2, 05:50 UTCJun 2, 06:05 UTC15m
2026-06-01 YZR7537 SZX → KWE Jun 1, 23:20 UTCJun 1, 23:35 UTC15m
2026-06-01 YZR7573 SZX → DYG Jun 1, 11:00 UTCJun 1, 11:10 UTC10m
2026-05-29 YZR7565 SZX → PVG May 29, 22:40 UTCMay 29, 22:50 UTC10m
2026-05-29 YZR7573 SZX → DYG May 29, 08:55 UTCMay 29, 09:05 UTC10m
2026-05-29 YZR7566 PVG → SZX May 29, 07:00 UTCMay 29, 07:20 UTC20m
2026-05-25 YZR7565 SZX → PVG May 25, 22:44 UTCMay 25, 23:00 UTC15m
2026-05-24 YZR7579 PVG → ZUH May 24, 06:25 UTCMay 24, 09:40 UTC3h 15m
2026-05-23 YZR7579 PVG → ZUH May 23, 09:35 UTCMay 24, 06:50 UTC21h 16m
2026-05-23 YZR7579 PVG → ZUH May 23, 05:50 UTCMay 23, 06:10 UTC20m
2026-05-22 YZR7537 SZX → KWE May 22, 22:45 UTCMay 22, 22:55 UTC10m
2026-05-22 YZR7525 SZX → TNA May 22, 00:10 UTCMay 22, 00:20 UTC10m
2026-05-19 YZR7525 SZX → TNA May 19, 22:30 UTCMay 19, 22:40 UTC10m
2026-05-18 YZR7525 SZX → TNA May 18, 22:45 UTCMay 18, 22:55 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-1391 page for operator, model, and routing details .

Mode-S 7812F0 frequently asked

What is Mode-S code 7812F0?
7812F0 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1391.
Where is Mode-S 7812F0 registered?
Mode-S code 7812F0 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812F0 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812F0, octal 36011360, decimal 7,869,168.
What flights does 7812F0 operate?
Mode-S 7812F0 has broadcast 20 distinct callsigns, including YZR7579, YZR7525, YZR7537, YZR7565, YZR7526.