Apparatus

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sensors Mode-S transponder

78136D

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1252 · BOEING 757-200

Hex
78136D
Octal
36011555
Decimal
7,869,293
Country
CN
Tail
B-1252
Type
B752
No current signal · last broadcast 3d ago
Flights observed
93
Distinct callsigns
20
Country
CN
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 78136D.

Country allocation

The ICAO 24-bit address 78136D 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
CSS6828 SF Airlines 8 2026-06-06
CSS6827 SF Airlines 8 2026-06-06
CSS7410 - 7 2026-07-03
CSS7125 SF Airlines 6 2026-05-07
CSS6812 - 5 2026-07-09
CSS7413 - 4 2026-07-04
CSS326 SF Airlines 4 2026-04-17
CSS325 SF Airlines 4 2026-04-17
CSS7240 - 3 2026-06-22
CSS7110 SF Airlines 3 2026-06-14
CSS6803 - 3 2026-06-24
CSS7107 - 2 2026-06-08
CSS6846 SF Airlines 2 2026-04-21
CSS6811 - 2 2026-07-08
CSS357 SF Airlines 2 2026-06-09
CSS318 - 2 2026-05-23
CSS317 SF Airlines 2 2026-05-23
CSS7662 - 1 2026-06-19
CSS7411 SF Airlines 1 2026-05-16
CSS7409 - 1 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 CSS6805 - Jul 10, 16:50 UTCJul 10, 17:05 UTC15m
2026-07-09 CSS6812 - Jul 9, 22:45 UTCJul 9, 23:05 UTC20m
2026-07-09 CSS6812 - Jul 9, 20:30 UTCJul 9, 20:45 UTC15m
2026-07-08 CSS7344 - Jul 8, 21:50 UTCJul 8, 22:05 UTC15m
2026-07-08 CSS6811 - Jul 8, 17:15 UTCJul 8, 17:25 UTC10m
2026-07-04 CSS7413 - Jul 4, 20:35 UTCJul 4, 20:50 UTC15m
2026-07-03 CSS7410 - Jul 3, 19:50 UTCJul 3, 20:05 UTC15m
2026-07-03 CSS7413 - Jul 3, 18:00 UTCJul 3, 18:10 UTC10m
2026-07-02 CSS7410 - Jul 2, 19:55 UTCJul 2, 20:10 UTC15m
2026-07-02 CSS7413 - Jul 2, 18:00 UTCJul 2, 18:10 UTC10m
2026-07-01 CSS7410 - Jul 1, 19:15 UTCJul 1, 19:25 UTC10m
2026-06-24 CSS6803 - Jun 24, 17:20 UTCJun 24, 17:29 UTC10m
2026-06-23 CSS7249 - Jun 23, 20:44 UTCJun 24, 01:44 UTC5h 0m
2026-06-22 CSS7240 - Jun 22, 21:00 UTCJun 22, 21:14 UTC15m
2026-06-21 CSS7240 - Jun 21, 20:45 UTCJun 21, 20:59 UTC15m
2026-06-19 CSS7662 - Jun 19, 23:19 UTCJun 19, 23:34 UTC15m
2026-06-17 CSS274 - Jun 17, 03:15 UTCJun 17, 04:40 UTC1h 25m
2026-06-17 CSS273 - Jun 17, 00:05 UTCJun 17, 01:45 UTC1h 40m
2026-06-14 CSS7110 SZX → PEK Jun 14, 21:50 UTCJun 14, 22:10 UTC20m
2026-06-13 CSS6806 EHU → SZX Jun 13, 20:55 UTCJun 13, 21:10 UTC15m
2026-06-10 CSS6803 SZX → EHU Jun 10, 17:15 UTCJun 10, 17:30 UTC15m
2026-06-10 CSS358 TPE → SZX Jun 10, 01:55 UTCJun 10, 03:10 UTC1h 15m
2026-06-09 CSS357 SZX → TPE Jun 9, 23:05 UTCJun 9, 23:40 UTC35m
2026-06-09 CSS357 SZX → TPE Jun 9, 22:20 UTCJun 9, 22:30 UTC10m
2026-06-09 CSS7109 PEK → SZX Jun 9, 18:50 UTCJun 9, 19:10 UTC20m
2026-06-08 CSS7110 SZX → PEK Jun 8, 21:45 UTCJun 8, 21:55 UTC10m
2026-06-08 CSS7107 - Jun 8, 19:35 UTCJun 8, 19:45 UTC10m
2026-06-08 CSS7107 - Jun 8, 17:00 UTCJun 8, 17:10 UTC10m
2026-06-07 CSS7110 SZX → PEK Jun 7, 21:50 UTCJun 7, 22:05 UTC15m
2026-06-06 CSS6828 PVG → SZX Jun 6, 23:09 UTCJun 6, 23:30 UTC20m
2026-06-06 - - Jun 6, 22:10 UTCJun 6, 22:34 UTC25m
2026-06-06 CSS6827 SZX → PVG Jun 6, 17:44 UTCJun 6, 17:54 UTC10m
2026-06-05 CSS6812 PEK → SZX Jun 5, 21:05 UTCJun 6, 00:05 UTC3h 0m
2026-05-30 CSS3053 - May 30, 15:35 UTCMay 30, 15:55 UTC20m
2026-05-29 CSS6812 PEK → SZX May 29, 22:50 UTCMay 29, 23:05 UTC15m
2026-05-29 CSS6812 PEK → SZX May 29, 20:25 UTCMay 29, 20:45 UTC20m
2026-05-28 CSS6839 SZX → WUX May 28, 21:55 UTCMay 28, 22:05 UTC10m
2026-05-28 CSS7277 - May 28, 19:30 UTCMay 28, 19:45 UTC15m
2026-05-24 CSS3060 - May 24, 12:10 UTCMay 24, 12:20 UTC10m
2026-05-23 CSS6828 PVG → SZX May 23, 22:30 UTCMay 23, 23:25 UTC55m
2026-05-23 CSS6827 SZX → PVG May 23, 17:20 UTCMay 23, 17:35 UTC15m
2026-05-23 CSS318 - May 23, 10:00 UTCMay 23, 10:25 UTC25m
2026-05-23 CSS317 SZX → SGN May 23, 04:00 UTCMay 23, 04:10 UTC10m
2026-05-22 CSS6828 PVG → SZX May 22, 21:45 UTCMay 22, 23:00 UTC1h 15m
2026-05-22 CSS6827 SZX → PVG May 22, 17:25 UTCMay 22, 17:35 UTC10m
2026-05-22 CSS318 - May 22, 09:15 UTCMay 22, 09:30 UTC15m
2026-05-22 CSS317 SZX → SGN May 22, 03:05 UTCMay 22, 03:15 UTC10m
2026-05-21 CSS6828 PVG → SZX May 21, 23:20 UTCMay 22, 00:15 UTC55m
2026-05-21 CSS6827 SZX → PVG May 21, 18:50 UTCMay 21, 19:00 UTC10m
2026-05-20 CSS6927 - May 20, 21:40 UTCMay 20, 22:05 UTC25m

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-1252 page for operator, model, and routing details .

Mode-S 78136D frequently asked

What is Mode-S code 78136D?
78136D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1252.
Where is Mode-S 78136D registered?
Mode-S code 78136D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78136D broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78136D, octal 36011555, decimal 7,869,293.
What flights does 78136D operate?
Mode-S 78136D has broadcast 20 distinct callsigns, including CSS6828, CSS6827, CSS7410, CSS7125, CSS6812.