Apparatus

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sensors Mode-S transponder

781252

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1006 · AIRBUS A-321

Hex
781252
Octal
36011122
Decimal
7,869,010
Country
CN
Tail
B-1006
Type
A321
No current signal · last broadcast Jul 25, 12:30 UTC
Flights observed
59
Distinct callsigns
19
Country
CN
Last broadcast
Jul 25, 12:30 UTC

Last known position

Most recent position reported by Mode-S 781252.

Country allocation

The ICAO 24-bit address 781252 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 19 distinct

Callsign Airline Flights Last seen
DKH1127 Juneyao Airlines 18 2026-07-22
DKH1177 Juneyao Airlines 7 2026-07-21
DKH1128 - 4 2026-07-22
DKH1888 - 3 2026-07-10
DKH1885 Juneyao Airlines 3 2026-07-25
DKH1881 Juneyao Airlines 3 2026-07-25
DKH1887 - 2 2026-07-10
DKH1886 Juneyao Airlines 2 2026-07-25
DKH1884 - 2 2026-07-12
DKH1883 - 2 2026-07-12
DKH1882 Juneyao Airlines 2 2026-07-25
DKH1789 Juneyao Airlines 2 2026-07-19
DKH1159 Juneyao Airlines 2 2026-05-03
DKH1087 - 2 2026-06-17
DKH1856 - 1 2026-06-24
DKH1790 - 1 2026-07-19
DKH1178 - 1 2026-07-09
DKH1160 Juneyao Airlines 1 2026-05-03
DKH1066 - 1 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 DKH1886 SZX → SHA Jul 25, 12:20 UTCJul 25, 12:30 UTC10m
2026-07-25 DKH1885 SHA → SZX Jul 25, 09:10 UTCJul 25, 09:40 UTC30m
2026-07-25 DKH1885 SHA → SZX Jul 25, 07:50 UTCJul 25, 08:20 UTC30m
2026-07-25 DKH1882 SZX → SHA Jul 25, 03:30 UTCJul 25, 03:40 UTC10m
2026-07-25 DKH1881 SHA → SZX Jul 25, 01:20 UTCJul 25, 02:05 UTC45m
2026-07-22 DKH1127 SHA → SYX Jul 22, 15:35 UTCJul 23, 10:20 UTC18h 45m
2026-07-22 DKH1127 SHA → SYX Jul 22, 14:20 UTCJul 23, 10:20 UTC20h 0m
2026-07-22 DKH1128 - Jul 22, 10:20 UTCJul 22, 15:40 UTC5h 20m
2026-07-21 DKH1177 SHA → SYX Jul 21, 02:55 UTCJul 21, 03:35 UTC40m
2026-07-19 DKH1790 - Jul 19, 16:45 UTCJul 19, 16:55 UTC10m
2026-07-19 DKH1789 NKG → XMN Jul 19, 15:05 UTCJul 19, 15:25 UTC20m
2026-07-17 DKH1127 - Jul 17, 10:15 UTCJul 17, 14:20 UTC4h 5m
2026-07-16 DKH1127 - Jul 16, 14:35 UTCJul 17, 14:20 UTC23h 45m
2026-07-16 DKH1127 - Jul 16, 13:49 UTCJul 17, 10:35 UTC20h 45m
2026-07-16 DKH1127 - Jul 16, 10:04 UTCJul 16, 14:35 UTC4h 30m
2026-07-14 DKH1127 - Jul 14, 09:55 UTCJul 14, 14:00 UTC4h 5m
2026-07-12 DKH1789 - Jul 12, 11:35 UTCJul 12, 12:25 UTC50m
2026-07-12 DKH1884 - Jul 12, 05:45 UTCJul 12, 05:55 UTC10m
2026-07-12 DKH1883 - Jul 12, 04:05 UTCJul 12, 04:25 UTC20m
2026-07-11 DKH1884 - Jul 11, 06:05 UTCJul 11, 06:15 UTC10m
2026-07-11 DKH1883 - Jul 11, 04:45 UTCJul 11, 05:01 UTC15m
2026-07-10 DKH1888 - Jul 10, 14:55 UTCJul 10, 15:05 UTC10m
2026-07-10 DKH1887 - Jul 10, 03:20 UTCJul 10, 12:30 UTC9h 10m
2026-07-09 DKH1178 - Jul 9, 07:20 UTCJul 10, 03:40 UTC20h 20m
2026-07-08 DKH1128 - Jul 8, 14:15 UTCJul 9, 07:35 UTC17h 20m
2026-07-08 DKH1127 - Jul 8, 10:40 UTCJul 9, 07:35 UTC20h 55m
2026-07-07 DKH1127 - Jul 7, 13:40 UTCJul 8, 10:55 UTC21h 15m
2026-07-07 DKH1127 - Jul 7, 10:00 UTCJul 7, 13:50 UTC3h 50m
2026-07-06 DKH1886 - Jul 6, 15:10 UTCJul 6, 15:25 UTC15m
2026-07-06 DKH1885 - Jul 6, 10:00 UTCJul 6, 11:00 UTC1h 0m
2026-07-06 DKH1882 - Jul 6, 04:15 UTCJul 6, 04:25 UTC10m
2026-07-06 DKH1881 - Jul 6, 02:20 UTCJul 6, 02:45 UTC25m
2026-07-06 DKH1881 - Jul 6, 01:10 UTCJul 6, 01:35 UTC25m
2026-07-05 DKH1066 - Jul 5, 03:10 UTCJul 5, 03:35 UTC25m
2026-07-04 DKH1127 - Jul 4, 09:55 UTCJul 4, 14:25 UTC4h 30m
2026-07-02 DKH1127 - Jul 2, 10:10 UTCJul 2, 14:00 UTC3h 50m
2026-07-01 DKH1127 - Jul 1, 13:30 UTCJul 2, 10:30 UTC21h 0m
2026-07-01 DKH1127 - Jul 1, 10:20 UTCJul 1, 13:45 UTC3h 25m
2026-06-30 DKH1888 - Jun 30, 14:45 UTCJun 30, 14:55 UTC10m
2026-06-30 DKH1887 - Jun 30, 11:55 UTCJun 30, 12:10 UTC15m
2026-06-29 DKH1177 - Jun 29, 14:04 UTCJun 30, 06:55 UTC16h 51m
2026-06-29 DKH1177 - Jun 29, 10:00 UTCJun 30, 06:55 UTC20h 56m
2026-06-24 DKH1856 - Jun 24, 03:35 UTCJun 24, 03:44 UTC10m
2026-06-23 DKH1888 SZX → SHA Jun 23, 13:34 UTCJun 23, 13:45 UTC10m
2026-06-22 DKH1177 - Jun 22, 14:55 UTCJun 23, 12:15 UTC21h 20m
2026-06-22 DKH1177 - Jun 22, 13:10 UTCJun 23, 12:15 UTC23h 5m
2026-06-22 DKH1177 - Jun 22, 10:34 UTCJun 23, 06:49 UTC20h 15m
2026-06-22 DKH1177 - Jun 22, 10:25 UTCJun 23, 06:49 UTC20h 25m
2026-06-21 DKH1127 - Jun 21, 14:54 UTCJun 22, 13:49 UTC22h 55m
2026-06-21 DKH1128 SYX → SHA Jun 21, 13:50 UTCJun 22, 11:04 UTC21h 15m

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-1006 page for operator, model, and routing details .

Mode-S 781252 frequently asked

What is Mode-S code 781252?
781252 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1006.
Where is Mode-S 781252 registered?
Mode-S code 781252 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781252 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 12:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781252, octal 36011122, decimal 7,869,010.
What flights does 781252 operate?
Mode-S 781252 has broadcast 19 distinct callsigns, including DKH1127, DKH1177, DKH1128, DKH1888, DKH1885.