sensors Mode-S transponder

7815AF

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-208D · BOEING 737-800

Hex
7815AF
Octal
36012657
Decimal
7,869,871
Country
CN
Tail
B-208D
Type
B738
No current signal · last broadcast 20h ago
Flights observed
87
Distinct callsigns
17
Country
CN
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 7815AF.

Country allocation

The ICAO 24-bit address 7815AF 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 17 distinct

Callsign Airline Flights Last seen
CES5082 - 15 2026-07-06
CES5081 - 13 2026-07-06
CES9624 - 8 2026-07-04
CES9657 - 6 2026-06-29
CES9623 - 6 2026-07-04
CES741 - 6 2026-07-13
CES2036 - 6 2026-07-10
CES9658 - 5 2026-06-29
CES9621 - 4 2026-07-09
CES742 - 4 2026-07-13
CES9622 - 3 2026-07-10
CES9619 China Eastern Airlines 3 2026-05-11
CES2035 - 3 2026-06-22
CES9613 - 2 2026-06-25
CES9614 - 1 2026-06-25
CES6823 China Eastern Airlines 1 2026-04-13
CES5719 - 1 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CES742 - Jul 13, 09:05 UTCJul 13, 10:30 UTC1h 25m
2026-07-13 CES741 - Jul 13, 07:30 UTCJul 13, 07:55 UTC25m
2026-07-13 CES741 - Jul 13, 01:05 UTCJul 13, 06:50 UTC5h 45m
2026-07-10 CES5719 - Jul 10, 14:55 UTCJul 10, 15:10 UTC15m
2026-07-10 CES2036 - Jul 10, 08:35 UTCJul 10, 09:50 UTC1h 15m
2026-07-10 CES9622 - Jul 10, 00:55 UTCJul 10, 06:45 UTC5h 50m
2026-07-09 CES9621 - Jul 9, 00:35 UTCJul 9, 15:10 UTC14h 35m
2026-07-07 CES742 - Jul 7, 09:05 UTCJul 7, 10:35 UTC1h 30m
2026-07-06 CES741 - Jul 6, 13:50 UTCJul 7, 07:55 UTC18h 5m
2026-07-06 CES741 - Jul 6, 10:55 UTCJul 7, 07:55 UTC21h 0m
2026-07-06 CES5082 - Jul 6, 06:20 UTCJul 7, 03:05 UTC20h 45m
2026-07-06 CES5082 - Jul 6, 04:55 UTCJul 7, 03:05 UTC22h 10m
2026-07-06 CES5081 - Jul 6, 00:05 UTCJul 6, 03:10 UTC3h 5m
2026-07-04 CES9624 - Jul 4, 03:40 UTCJul 4, 04:55 UTC1h 15m
2026-07-04 CES9623 - Jul 4, 01:45 UTCJul 4, 02:05 UTC20m
2026-07-03 CES5082 - Jul 3, 05:00 UTCJul 3, 17:35 UTC12h 35m
2026-07-03 CES5081 - Jul 3, 00:00 UTCJul 3, 03:05 UTC3h 5m
2026-07-01 CES2036 - Jul 1, 08:40 UTCJul 1, 09:50 UTC1h 10m
2026-07-01 CES9622 - Jul 1, 01:00 UTCJul 1, 06:45 UTC5h 45m
2026-06-30 CES9621 - Jun 30, 14:05 UTCJun 30, 15:30 UTC1h 25m
2026-06-29 CES9658 - Jun 29, 10:50 UTCJun 29, 12:05 UTC1h 15m
2026-06-29 CES9657 - Jun 29, 08:39 UTCJun 29, 09:14 UTC35m
2026-06-25 CES9614 - Jun 25, 16:59 UTCJun 25, 17:20 UTC20m
2026-06-25 CES9613 - Jun 25, 15:04 UTCJun 25, 15:34 UTC30m
2026-06-25 CES9613 - Jun 25, 11:39 UTCJun 25, 13:29 UTC1h 50m
2026-06-23 CES742 - Jun 23, 08:59 UTCJun 23, 09:59 UTC1h 0m
2026-06-23 CES741 - Jun 23, 07:19 UTCJun 23, 07:49 UTC30m
2026-06-22 CES2036 - Jun 22, 08:54 UTCJun 23, 07:45 UTC22h 50m
2026-06-22 CES2035 - Jun 22, 06:05 UTCJun 22, 06:54 UTC50m
2026-06-20 CES9624 - Jun 20, 04:29 UTCJun 20, 04:49 UTC20m
2026-06-20 CES9624 - Jun 20, 03:39 UTCJun 20, 03:54 UTC15m
2026-06-20 CES9623 - Jun 20, 01:39 UTCJun 20, 02:14 UTC35m
2026-06-19 CES9624 - Jun 19, 03:49 UTCJun 20, 00:54 UTC21h 5m
2026-06-19 CES9624 - Jun 19, 03:44 UTCJun 20, 00:54 UTC21h 10m
2026-06-18 CES9623 - Jun 18, 07:50 UTCJun 19, 02:19 UTC18h 29m
2026-06-18 CES5082 - Jun 18, 06:35 UTCJun 19, 02:19 UTC19h 44m
2026-06-18 CES5082 - Jun 18, 05:20 UTCJun 19, 02:19 UTC20h 59m
2026-06-18 CES5081 - Jun 18, 01:10 UTCJun 18, 03:10 UTC2h 0m
2026-06-17 CES5081 - Jun 17, 04:55 UTCJun 18, 03:10 UTC22h 15m
2026-06-17 CES9624 - Jun 17, 04:00 UTCJun 17, 04:10 UTC10m
2026-06-17 CES9623 - Jun 17, 01:35 UTCJun 17, 02:10 UTC35m
2026-06-16 CES9658 KMG → HET Jun 16, 14:05 UTCJun 17, 00:50 UTC10h 46m
2026-06-16 CES9657 KMG → HKG Jun 16, 12:05 UTCJun 16, 12:39 UTC35m
2026-06-16 CES5082 - Jun 16, 05:10 UTCJun 16, 07:50 UTC2h 40m
2026-06-16 CES5081 - Jun 16, 01:25 UTCJun 16, 03:25 UTC2h 0m
2026-05-28 CES9658 KMG → HET May 28, 13:50 UTCMay 28, 14:50 UTC1h 0m
2026-05-28 CES9657 KMG → HKG May 28, 11:40 UTCMay 28, 12:15 UTC35m
2026-05-28 CES5082 SIN → KMG May 28, 05:00 UTCMay 28, 07:35 UTC2h 35m
2026-05-28 CES5081 KMG → SIN May 28, 00:45 UTCMay 28, 03:15 UTC2h 30m
2026-05-24 CES2036 DAC → KMG May 24, 08:30 UTCMay 24, 09:30 UTC1h 0m

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-208D page for operator, model, and routing details .

Mode-S 7815AF frequently asked

What is Mode-S code 7815AF?
7815AF is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-208D.
Where is Mode-S 7815AF registered?
Mode-S code 7815AF is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7815AF broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7815AF, octal 36012657, decimal 7,869,871.
What flights does 7815AF operate?
Mode-S 7815AF has broadcast 17 distinct callsigns, including CES5082, CES5081, CES9624, CES9657, CES9623.