Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781E6D

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32CK · AIRBUS A-320

Hex
781E6D
Octal
36017155
Decimal
7,872,109
Country
CN
Tail
B-32CK
Type
A320
No current signal · last broadcast 2d ago
Flights observed
56
Distinct callsigns
15
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 781E6D.

Country allocation

The ICAO 24-bit address 781E6D 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 15 distinct

Callsign Airline Flights Last seen
SNG5621 - 11 2026-06-19
SNG1325 - 8 2026-07-11
SNG8802 - 7 2026-07-15
SNG6674 - 5 2026-06-28
SNG5622 Air Senegal International 5 2026-05-25
SNG8801 - 4 2026-07-13
SNG1326 - 4 2026-07-10
SNG6658 - 3 2026-06-27
SNG8818 - 2 2026-07-09
SNG881R - 1 2026-07-14
SNG8810 - 1 2026-06-13
SNG6652 - 1 2026-06-26
SNG6629 - 1 2026-07-15
SNG6619 - 1 2026-06-30
SNG6617 Air Senegal International 1 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SNG6629 - Jul 15, 10:10 UTCJul 16, 04:50 UTC18h 40m
2026-07-15 SNG8802 - Jul 15, 08:15 UTCJul 16, 04:50 UTC20h 35m
2026-07-14 SNG881R - Jul 14, 14:40 UTCJul 14, 23:35 UTC8h 54m
2026-07-13 SNG8801 - Jul 13, 00:05 UTCJul 13, 06:05 UTC6h 0m
2026-07-12 SNG8802 - Jul 12, 00:05 UTCJul 12, 06:01 UTC5h 55m
2026-07-11 SNG1325 - Jul 11, 05:55 UTCJul 12, 00:05 UTC18h 10m
2026-07-10 SNG1326 - Jul 10, 13:50 UTCJul 10, 14:05 UTC15m
2026-07-10 SNG1325 - Jul 10, 05:45 UTCJul 10, 06:00 UTC15m
2026-07-09 SNG8818 - Jul 9, 13:40 UTCJul 9, 14:15 UTC35m
2026-07-07 SNG8802 - Jul 7, 11:25 UTCJul 8, 06:30 UTC19h 5m
2026-07-05 SNG8802 - Jul 5, 05:55 UTCJul 5, 06:05 UTC10m
2026-06-30 SNG6619 - Jun 30, 15:50 UTCJun 30, 16:05 UTC15m
2026-06-29 SNG8802 - Jun 29, 00:10 UTCJun 29, 06:34 UTC6h 25m
2026-06-28 SNG6674 - Jun 28, 06:59 UTCJun 29, 00:20 UTC17h 20m
2026-06-27 SNG6658 - Jun 27, 17:29 UTCJun 28, 07:14 UTC13h 45m
2026-06-27 SNG6658 - Jun 27, 13:30 UTCJun 27, 13:49 UTC20m
2026-06-26 SNG6652 - Jun 26, 10:55 UTCJun 26, 11:05 UTC10m
2026-06-19 SNG5621 - Jun 19, 01:15 UTCJun 19, 03:39 UTC2h 25m
2026-06-14 SNG8801 ZHA → TNA Jun 14, 00:20 UTCJun 14, 06:15 UTC5h 55m
2026-06-13 SNG8810 - Jun 13, 17:55 UTCJun 13, 18:10 UTC15m
2026-06-13 - - Jun 13, 05:55 UTCJun 13, 07:00 UTC1h 5m
2026-06-12 SNG8801 ZHA → TNA Jun 12, 00:10 UTCJun 12, 06:55 UTC6h 46m
2026-06-11 SNG8818 - Jun 11, 03:00 UTCJun 11, 06:20 UTC3h 20m
2026-06-09 SNG8802 TNA → ZHA Jun 9, 22:35 UTCJun 10, 04:25 UTC5h 50m
2026-06-07 SNG6674 CSX → HRB Jun 7, 07:00 UTCJun 7, 22:45 UTC15h 45m
2026-06-05 SNG1326 TSN → TFU Jun 5, 10:35 UTCJun 5, 10:45 UTC10m
2026-06-05 SNG1325 TFU → TSN Jun 5, 05:55 UTCJun 5, 06:10 UTC15m
2026-06-03 SNG1326 TSN → TFU Jun 3, 11:15 UTCJun 3, 11:35 UTC20m
2026-06-03 SNG1325 TFU → TSN Jun 3, 05:50 UTCJun 3, 06:10 UTC20m
2026-05-29 SNG1326 TSN → TFU May 29, 10:20 UTCMay 29, 10:30 UTC10m
2026-05-29 SNG1325 TFU → TSN May 29, 05:45 UTCMay 29, 06:05 UTC20m
2026-05-25 SNG5622 ZHA → NGB May 25, 09:45 UTCMay 25, 09:55 UTC10m
2026-05-24 SNG5622 ZHA → NGB May 24, 12:10 UTCMay 25, 09:55 UTC21h 45m
2026-05-24 SNG5621 NGB → ZHA May 24, 01:30 UTCMay 24, 13:15 UTC11h 45m
2026-05-22 SNG5622 ZHA → NGB May 22, 12:00 UTCMay 22, 12:10 UTC10m
2026-05-22 SNG5621 NGB → ZHA May 22, 01:10 UTCMay 22, 01:25 UTC15m
2026-05-20 SNG5621 NGB → ZHA May 20, 01:20 UTCMay 20, 01:35 UTC15m
2026-05-08 SNG1325 TFU → TSN May 8, 05:35 UTCMay 8, 05:49 UTC15m
2026-05-07 SNG6617 TVS → TFU May 7, 13:15 UTCMay 7, 13:30 UTC15m
2026-05-06 SNG1325 TFU → TSN May 6, 05:25 UTCMay 6, 05:40 UTC15m
2026-05-04 SNG1325 TFU → TSN May 4, 05:50 UTCMay 4, 06:05 UTC15m
2026-05-03 SNG6674 CSX → HRB May 3, 07:20 UTCMay 3, 07:40 UTC20m
2026-05-02 SNG6674 CSX → HRB May 2, 12:45 UTCMay 3, 07:40 UTC18h 54m
2026-05-02 SNG6658 - May 2, 08:40 UTCMay 2, 08:55 UTC15m
2026-05-01 SNG8801 ZHA → TNA May 1, 00:40 UTCMay 1, 07:15 UTC6h 35m
2026-04-29 SNG8802 TNA → ZHA Apr 29, 22:35 UTCApr 30, 04:15 UTC5h 39m
2026-04-29 SNG6674 CSX → HRB Apr 29, 06:59 UTCApr 30, 04:15 UTC21h 15m
2026-04-27 SNG5621 NGB → ZHA Apr 27, 01:05 UTCApr 27, 01:20 UTC15m
2026-04-26 SNG5621 NGB → ZHA Apr 26, 01:20 UTCApr 26, 01:30 UTC10m
2026-04-24 SNG5621 NGB → ZHA Apr 24, 01:20 UTCApr 24, 01:35 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-32CK page for operator, model, and routing details .

Mode-S 781E6D frequently asked

What is Mode-S code 781E6D?
781E6D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32CK.
Where is Mode-S 781E6D registered?
Mode-S code 781E6D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781E6D broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781E6D, octal 36017155, decimal 7,872,109.
What flights does 781E6D operate?
Mode-S 781E6D has broadcast 15 distinct callsigns, including SNG5621, SNG1325, SNG8802, SNG6674, SNG5622.