sensors Mode-S transponder

7812F1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1369 · BOEING 737-800

Hex
7812F1
Octal
36011361
Decimal
7,869,169
Country
CN
Tail
B-1369
Type
B738
No current signal · last broadcast Jul 26, 11:25 UTC
Flights observed
60
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 11:25 UTC

Last known position

Most recent position reported by Mode-S 7812F1.

Country allocation

The ICAO 24-bit address 7812F1 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
CXA8790 - 5 2026-07-24
CXA869 Xiamen Airlines 4 2026-05-02
CXA8526 - 4 2026-07-22
CXA8221 - 4 2026-06-12
CXA8818 - 3 2026-06-15
CXA8094 - 3 2026-07-22
CXA8698 Xiamen Airlines 2 2026-05-06
CXA8543 - 2 2026-07-18
CXA8343 - 2 2026-07-01
CXA8222 - 2 2026-06-12
CXA8070 - 2 2026-06-22
CXA8032 Xiamen Airlines 2 2026-04-13
CXA895 Xiamen Airlines 1 2026-05-01
CXA8867 - 1 2026-05-22
CXA8789 - 1 2026-07-23
CXA8727 - 1 2026-07-15
CXA8697 - 1 2026-07-12
CXA8692 - 1 2026-05-30
CXA8691 - 1 2026-05-30
CXA8616 - 1 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CXA8277 - Jul 26, 11:05 UTCJul 26, 11:25 UTC20m
2026-07-24 CXA8361 - Jul 24, 11:15 UTCJul 24, 14:20 UTC3h 5m
2026-07-24 CXA8790 - Jul 24, 08:30 UTCJul 24, 09:10 UTC40m
2026-07-23 CXA8789 - Jul 23, 07:35 UTCJul 24, 02:15 UTC18h 40m
2026-07-22 CXA8094 - Jul 22, 12:50 UTCJul 23, 02:25 UTC13h 35m
2026-07-22 CXA8094 - Jul 22, 05:15 UTCJul 23, 02:25 UTC21h 10m
2026-07-22 CXA8526 - Jul 22, 01:45 UTCJul 22, 12:55 UTC11h 10m
2026-07-20 - - Jul 20, 14:00 UTCJul 20, 14:10 UTC10m
2026-07-20 CXA8044 CGQ → HGH Jul 20, 07:15 UTCJul 20, 08:00 UTC45m
2026-07-18 CXA8543 - Jul 18, 22:50 UTCJul 18, 23:25 UTC35m
2026-07-18 CXA8060 - Jul 18, 12:35 UTCJul 18, 13:00 UTC25m
2026-07-17 CXA8526 - Jul 17, 01:49 UTCJul 17, 02:25 UTC35m
2026-07-16 CXA8526 - Jul 16, 04:45 UTCJul 17, 02:25 UTC21h 40m
2026-07-15 CXA8727 - Jul 15, 14:05 UTCJul 16, 04:55 UTC14h 50m
2026-07-14 CXA8526 - Jul 14, 01:45 UTCJul 14, 02:20 UTC35m
2026-07-12 CXA8697 - Jul 12, 02:20 UTCJul 12, 02:35 UTC15m
2026-07-05 CXA8088 - Jul 5, 23:25 UTCJul 6, 00:10 UTC45m
2026-07-05 CXA8790 - Jul 5, 01:55 UTCJul 5, 07:55 UTC6h 0m
2026-07-01 CXA8343 - Jul 1, 13:20 UTCJul 1, 13:40 UTC20m
2026-06-28 CXA8344 - Jun 28, 15:55 UTCJun 28, 16:09 UTC15m
2026-06-28 CXA8343 - Jun 28, 14:14 UTCJun 28, 14:39 UTC25m
2026-06-22 CXA8070 - Jun 22, 12:19 UTCJun 23, 07:09 UTC18h 50m
2026-06-22 CXA8070 - Jun 22, 12:05 UTCJun 23, 07:09 UTC19h 5m
2026-06-20 - - Jun 20, 11:20 UTCJun 20, 12:04 UTC45m
2026-06-18 CXA8094 - Jun 18, 01:50 UTCJun 18, 02:30 UTC40m
2026-06-15 CXA8818 - Jun 15, 09:10 UTCJun 16, 02:34 UTC17h 25m
2026-06-15 CXA8818 - Jun 15, 01:10 UTCJun 15, 09:54 UTC8h 45m
2026-06-13 CXA8093 - Jun 13, 15:00 UTCJun 14, 09:45 UTC18h 45m
2026-06-12 CXA8221 - Jun 12, 05:50 UTCJun 12, 06:00 UTC10m
2026-06-12 CXA8222 - Jun 12, 03:55 UTCJun 12, 04:05 UTC10m
2026-06-10 CXA828 MNL → XMN Jun 10, 05:15 UTCJun 10, 05:40 UTC25m
2026-06-10 CXA827 XMN → MNL Jun 10, 02:15 UTCJun 10, 03:35 UTC1h 20m
2026-06-09 CXA8221 - Jun 9, 05:35 UTCJun 9, 05:45 UTC10m
2026-06-05 CXA820 MNL → XMN Jun 5, 16:10 UTCJun 5, 17:20 UTC1h 10m
2026-06-05 CXA819 XMN → MNL Jun 5, 14:20 UTCJun 5, 14:50 UTC30m
2026-05-30 CXA8692 - May 30, 06:40 UTCMay 30, 06:55 UTC15m
2026-05-30 CXA8691 - May 30, 03:55 UTCMay 30, 04:30 UTC35m
2026-05-28 CXA8076 CGQ → NGB May 28, 06:30 UTCMay 28, 10:40 UTC4h 10m
2026-05-22 CXA8867 - May 22, 01:00 UTCMay 22, 04:20 UTC3h 20m
2026-05-20 CXA8221 - May 20, 05:40 UTCMay 20, 05:50 UTC10m
2026-05-17 CXA8327 PKX → CSX May 17, 12:10 UTCMay 17, 12:25 UTC15m
2026-05-06 CXA8698 HAN → FOC May 6, 13:50 UTCMay 6, 14:10 UTC20m
2026-05-06 CXA8698 HAN → FOC May 6, 06:40 UTCMay 6, 10:40 UTC4h 0m
2026-05-05 CXA8523 - May 5, 14:10 UTCMay 6, 02:30 UTC12h 20m
2026-05-02 CXA869 XMN → HAN May 2, 05:50 UTCMay 2, 10:00 UTC4h 10m
2026-05-01 CXA869 XMN → HAN May 1, 08:20 UTCMay 2, 06:20 UTC22h 0m
2026-05-01 CXA869 XMN → HAN May 1, 08:10 UTCMay 2, 06:15 UTC22h 5m
2026-05-01 CXA895 XMN → PNH May 1, 01:20 UTCMay 1, 08:25 UTC7h 5m
2026-04-25 CXA8040 - Apr 25, 00:55 UTCApr 25, 01:30 UTC35m
2026-04-24 CXA8790 - Apr 24, 01:45 UTCApr 24, 08:05 UTC6h 20m

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-1369 page for operator, model, and routing details .

Mode-S 7812F1 frequently asked

What is Mode-S code 7812F1?
7812F1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1369.
Where is Mode-S 7812F1 registered?
Mode-S code 7812F1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812F1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 11:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812F1, octal 36011361, decimal 7,869,169.
What flights does 7812F1 operate?
Mode-S 7812F1 has broadcast 20 distinct callsigns, including CXA8790, CXA869, CXA8526, CXA8221, CXA8818.