Apparatus

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sensors Mode-S transponder

781055

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8457 · AIRBUS A-321

Hex
781055
Octal
36010125
Decimal
7,868,501
Country
CN
Tail
B-8457
Type
A321
No current signal · last broadcast 5h ago
Flights observed
70
Distinct callsigns
20
Country
CN
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 781055.

Country allocation

The ICAO 24-bit address 781055 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
DKH1129 Juneyao Airlines 6 2026-05-23
DKH1352 Juneyao Airlines 4 2026-05-30
DKH1351 Juneyao Airlines 4 2026-05-30
DKH1087 Juneyao Airlines 4 2026-06-02
DKH1177 Juneyao Airlines 3 2026-05-25
DKH1159 Juneyao Airlines 3 2026-05-13
DKH1156 Juneyao Airlines 3 2026-05-16
DKH1155 Juneyao Airlines 3 2026-05-16
DKH1127 Juneyao Airlines 3 2026-05-04
DKH2050 Juneyao Airlines 2 2026-05-14
DKH2049 Juneyao Airlines 2 2026-05-14
DKH1888 Juneyao Airlines 2 2026-05-12
DKH1887 Juneyao Airlines 2 2026-05-15
DKH1506 Juneyao Airlines 2 2026-04-19
DKH1386 - 2 2026-04-14
DKH1312 Juneyao Airlines 2 2026-05-10
DKH1309 Juneyao Airlines 2 2026-06-02
DKH1271 Juneyao Airlines 2 2026-04-17
DKH1160 Juneyao Airlines 2 2026-05-14
DKH2288 Juneyao Airlines 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 DKH1087 PVG → HAK Jun 2, 04:10 UTCJun 2, 13:20 UTC9h 10m
2026-06-02 DKH1309 PVG → TPE Jun 2, 02:25 UTCJun 2, 02:35 UTC10m
2026-05-30 DKH1352 BKK → PVG May 30, 18:35 UTCMay 30, 20:55 UTC2h 20m
2026-05-30 DKH1351 PVG → BKK May 30, 14:25 UTCMay 30, 16:40 UTC2h 15m
2026-05-28 DKH1352 BKK → PVG May 28, 18:40 UTCMay 28, 21:35 UTC2h 55m
2026-05-28 DKH1351 PVG → BKK May 28, 15:35 UTCMay 28, 17:10 UTC1h 35m
2026-05-25 DKH1177 SHA → SYX May 25, 03:05 UTCMay 25, 07:05 UTC4h 0m
2026-05-23 DKH1129 SHA → SYX May 23, 06:35 UTCMay 23, 10:45 UTC4h 10m
2026-05-21 DKH188R - May 21, 06:40 UTCMay 21, 06:50 UTC10m
2026-05-21 DKH188S - May 21, 04:40 UTCMay 21, 04:50 UTC10m
2026-05-19 DKH1310 TPE → PVG May 19, 04:35 UTCMay 19, 05:25 UTC50m
2026-05-19 DKH1309 PVG → TPE May 19, 01:55 UTCMay 19, 02:25 UTC30m
2026-05-18 DKH2048 HAK → HUZ May 18, 00:10 UTCMay 18, 00:25 UTC15m
2026-05-17 DKH2047 HGH → HUZ May 17, 14:15 UTCMay 17, 14:35 UTC20m
2026-05-16 DKH1156 ZUH → PVG May 16, 13:25 UTCMay 16, 13:35 UTC10m
2026-05-16 DKH1155 PVG → ZUH May 16, 11:11 UTCMay 16, 11:31 UTC20m
2026-05-15 DKH1887 SHA → SZX May 15, 13:15 UTCMay 15, 14:25 UTC1h 10m
2026-05-14 DKH1160 ZUH → SHA May 14, 10:50 UTCMay 14, 11:05 UTC15m
2026-05-14 DKH2049 HGH → ZUH May 14, 08:35 UTCMay 14, 08:55 UTC20m
2026-05-14 DKH2050 ZUH → HGH May 14, 02:40 UTCMay 14, 02:55 UTC15m
2026-05-13 DKH1159 SHA → ZUH May 13, 15:25 UTCMay 14, 01:05 UTC9h 40m
2026-05-13 DKH1156 ZUH → PVG May 13, 14:25 UTCMay 13, 14:40 UTC15m
2026-05-13 DKH1155 PVG → ZUH May 13, 12:15 UTCMay 13, 12:45 UTC30m
2026-05-12 DKH1888 SZX → SHA May 12, 13:40 UTCMay 12, 13:55 UTC15m
2026-05-12 DKH1887 SHA → SZX May 12, 11:45 UTCMay 12, 12:00 UTC15m
2026-05-11 DKH1177 SHA → SYX May 11, 03:15 UTCMay 11, 06:45 UTC3h 30m
2026-05-10 DKH1312 KHH → PVG May 10, 05:20 UTCMay 11, 03:40 UTC22h 20m
2026-05-10 DKH1312 KHH → PVG May 10, 04:50 UTCMay 11, 03:15 UTC22h 25m
2026-05-10 DKH1311 PVG → KHH May 10, 02:10 UTCMay 10, 03:10 UTC1h 0m
2026-05-08 DKH1890 SZX → SHA May 8, 23:50 UTCMay 9, 00:05 UTC15m
2026-05-08 DKH1889 SHA → SZX May 8, 15:35 UTCMay 8, 16:05 UTC30m
2026-05-08 DKH1129 SHA → SYX May 8, 05:44 UTCMay 8, 10:19 UTC4h 35m
2026-05-04 DKH1127 SHA → SYX May 4, 10:05 UTCMay 4, 13:55 UTC3h 50m
2026-05-03 DKH1127 SHA → SYX May 3, 13:35 UTCMay 4, 10:25 UTC20h 50m
2026-05-03 DKH1127 SHA → SYX May 3, 10:05 UTCMay 3, 13:45 UTC3h 40m
2026-04-30 DKH1789 NKG → XMN Apr 30, 11:10 UTCApr 30, 11:30 UTC20m
2026-04-30 DKH1884 SZX → SHA Apr 30, 05:40 UTCApr 30, 05:50 UTC10m
2026-04-28 DKH1129 SHA → SYX Apr 28, 06:20 UTCApr 28, 11:50 UTC5h 30m
2026-04-26 DKH1902 KWE → HUZ Apr 26, 15:30 UTCApr 26, 15:40 UTC10m
2026-04-24 DKH1156 ZUH → PVG Apr 24, 12:05 UTCApr 24, 12:20 UTC15m
2026-04-24 DKH1155 PVG → ZUH Apr 24, 10:15 UTCApr 24, 10:40 UTC25m
2026-04-23 - - Apr 23, 14:10 UTCApr 23, 14:25 UTC15m
2026-04-23 DKH2288 CAN → SHA Apr 23, 08:40 UTCApr 23, 08:50 UTC10m
2026-04-22 DKH1888 SZX → SHA Apr 22, 14:25 UTCApr 22, 14:35 UTC10m
2026-04-22 DKH1177 SHA → SYX Apr 22, 03:05 UTCApr 22, 12:25 UTC9h 20m
2026-04-20 DKH1853 - Apr 20, 16:00 UTCApr 20, 16:15 UTC15m
2026-04-20 DKH1129 SHA → SYX Apr 20, 06:45 UTCApr 20, 11:20 UTC4h 35m
2026-04-19 DKH1129 SHA → SYX Apr 19, 12:50 UTCApr 20, 10:45 UTC21h 55m
2026-04-19 DKH1129 SHA → SYX Apr 19, 09:20 UTCApr 20, 07:00 UTC21h 40m
2026-04-19 DKH1087 PVG → HAK Apr 19, 08:40 UTCApr 20, 07:00 UTC22h 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-8457 page for operator, model, and routing details .

Mode-S 781055 frequently asked

What is Mode-S code 781055?
781055 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8457.
Where is Mode-S 781055 registered?
Mode-S code 781055 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781055 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781055, octal 36010125, decimal 7,868,501.
What flights does 781055 operate?
Mode-S 781055 has broadcast 20 distinct callsigns, including DKH1129, DKH1352, DKH1351, DKH1087, DKH1177.