Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781942

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-20EQ · BOEING 787-9 Dreamliner

Hex
781942
Octal
36014502
Decimal
7,870,786
Country
CN
Tail
B-20EQ
Type
B789
No current signal · last broadcast 56m ago
Flights observed
168
Distinct callsigns
20
Country
CN
Last broadcast
56m ago

Last known position

Most recent position reported by Mode-S 781942.

Country allocation

The ICAO 24-bit address 781942 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
DKH1607 - 18 2026-07-10
DKH1667 - 15 2026-06-22
DKH1668 - 11 2026-06-22
DKH1608 - 10 2026-07-10
DKH1660 - 9 2026-07-08
DKH1885 - 8 2026-06-29
DKH1881 - 7 2026-06-29
DKH1659 - 7 2026-07-07
DKH1658 - 7 2026-06-24
DKH1657 - 7 2026-06-24
DKH1882 - 6 2026-06-29
DKH1662 - 6 2026-07-13
DKH1661 - 6 2026-07-12
DKH1886 - 5 2026-06-29
DKH1790 - 4 2026-07-02
DKH1380 - 4 2026-07-14
DKH1884 - 3 2026-07-03
DKH1883 - 3 2026-07-03
DKH1789 - 3 2026-07-02
DKH1506 - 3 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DKH1656 - Jul 14, 22:10 UTCJul 15, 01:45 UTC3h 34m
2026-07-14 DKH1380 NRT → MEL Jul 14, 04:35 UTCJul 14, 20:00 UTC15h 25m
2026-07-13 DKH1662 MAN → NRT Jul 13, 10:35 UTCJul 14, 02:55 UTC16h 20m
2026-07-12 DKH1661 KIX → MAN Jul 12, 13:50 UTCJul 13, 05:20 UTC15h 30m
2026-07-11 DKH1337 MEL → KIX Jul 11, 22:15 UTCJul 12, 12:30 UTC14h 15m
2026-07-11 DKH1380 NRT → MEL Jul 11, 04:45 UTCJul 11, 20:00 UTC15h 15m
2026-07-10 DKH1608 HEL → NRT Jul 10, 14:10 UTCJul 11, 02:55 UTC12h 45m
2026-07-10 DKH1607 - Jul 10, 11:25 UTCJul 10, 11:30 UTC5m
2026-07-09 DKH1608 - Jul 9, 15:05 UTCJul 10, 07:35 UTC16h 30m
2026-07-09 DKH1607 - Jul 9, 12:35 UTCJul 9, 12:45 UTC10m
2026-07-08 DKH1607 - Jul 8, 16:35 UTCJul 9, 11:25 UTC18h 50m
2026-07-08 DKH1607 - Jul 8, 14:35 UTCJul 9, 11:25 UTC20h 50m
2026-07-08 DKH1660 - Jul 8, 12:35 UTCJul 9, 11:25 UTC22h 50m
2026-07-08 DKH1660 - Jul 8, 10:40 UTCJul 9, 08:40 UTC22h 0m
2026-07-07 DKH1659 - Jul 7, 22:50 UTCJul 8, 05:05 UTC6h 15m
2026-07-07 DKH1659 - Jul 7, 04:35 UTCJul 8, 04:30 UTC23h 55m
2026-07-06 DKH1662 MAN → TPE Jul 6, 10:40 UTCJul 7, 02:20 UTC15h 40m
2026-07-05 DKH1661 - Jul 5, 19:35 UTCJul 6, 05:25 UTC9h 50m
2026-07-04 DKH1662 - Jul 4, 10:40 UTCJul 4, 16:50 UTC6h 10m
2026-07-03 DKH1661 - Jul 3, 20:05 UTCJul 4, 06:00 UTC9h 55m
2026-07-03 DKH1884 - Jul 3, 06:35 UTCJul 3, 06:45 UTC10m
2026-07-03 DKH1883 - Jul 3, 04:25 UTCJul 3, 04:45 UTC20m
2026-07-02 DKH1790 - Jul 2, 14:35 UTCJul 2, 14:50 UTC15m
2026-07-02 DKH1789 - Jul 2, 12:15 UTCJul 2, 12:40 UTC25m
2026-07-01 DKH1608 - Jul 1, 14:20 UTCJul 1, 21:20 UTC7h 0m
2026-07-01 DKH1607 - Jul 1, 03:35 UTCJul 1, 11:15 UTC7h 40m
2026-06-30 DKH1884 - Jun 30, 05:50 UTCJun 30, 06:00 UTC10m
2026-06-30 DKH1883 - Jun 30, 03:55 UTCJun 30, 04:15 UTC20m
2026-06-29 DKH1886 - Jun 29, 10:15 UTCJun 29, 10:24 UTC10m
2026-06-29 DKH1885 - Jun 29, 08:29 UTCJun 29, 08:54 UTC25m
2026-06-29 DKH1882 - Jun 29, 03:25 UTCJun 29, 03:34 UTC10m
2026-06-29 DKH1881 - Jun 29, 00:54 UTCJun 29, 01:39 UTC45m
2026-06-28 DKH1886 - Jun 28, 13:59 UTCJun 28, 14:09 UTC10m
2026-06-28 DKH1885 - Jun 28, 11:04 UTCJun 28, 11:29 UTC25m
2026-06-28 DKH1882 - Jun 28, 03:55 UTCJun 28, 04:05 UTC10m
2026-06-28 DKH1881 - Jun 28, 01:10 UTCJun 28, 01:34 UTC25m
2026-06-27 DKH1790 - Jun 27, 14:35 UTCJun 27, 14:45 UTC10m
2026-06-27 DKH1789 - Jun 27, 12:25 UTCJun 27, 12:50 UTC25m
2026-06-26 DKH1790 - Jun 26, 14:50 UTCJun 26, 14:59 UTC10m
2026-06-24 DKH1658 - Jun 24, 11:54 UTCJun 24, 14:09 UTC2h 15m
2026-06-24 DKH1657 - Jun 24, 01:19 UTCJun 24, 04:10 UTC2h 50m
2026-06-22 DKH1668 - Jun 22, 21:30 UTCJun 22, 23:50 UTC2h 20m
2026-06-22 DKH1667 - Jun 22, 12:25 UTCJun 22, 19:19 UTC6h 55m
2026-06-21 DKH1667 - Jun 21, 16:34 UTCJun 22, 16:29 UTC23h 55m
2026-06-21 DKH1660 - Jun 21, 14:34 UTCJun 22, 14:29 UTC23h 55m
2026-06-21 DKH1660 - Jun 21, 12:35 UTCJun 22, 12:30 UTC23h 55m
2026-06-21 DKH1660 - Jun 21, 10:40 UTCJun 21, 16:39 UTC6h 0m
2026-06-20 DKH1659 - Jun 20, 11:25 UTCJun 21, 05:04 UTC17h 40m
2026-06-20 DKH1659 - Jun 20, 08:39 UTCJun 21, 05:04 UTC20h 25m
2026-06-19 DKH1660 - Jun 19, 10:35 UTCJun 20, 06:14 UTC19h 40m

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-20EQ page for operator, model, and routing details .

Mode-S 781942 frequently asked

What is Mode-S code 781942?
781942 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-20EQ.
Where is Mode-S 781942 registered?
Mode-S code 781942 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781942 broadcasting right now?
No active broadcast right now. Last signal was 56m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781942, octal 36014502, decimal 7,870,786.
What flights does 781942 operate?
Mode-S 781942 has broadcast 20 distinct callsigns, including DKH1607, DKH1667, DKH1668, DKH1608, DKH1660.