Apparatus

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sensors Mode-S transponder

7818A8

ICAO 24-bit transponder address · allocated to China

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

Hex
7818A8
Octal
36014250
Decimal
7,870,632
Country
CN
Tail
B-20EC
Type
B789
Broadcasting now · callsign DKH1670 · 38,000 ft
Flights observed
81
Distinct callsigns
20
Country
CN
Last broadcast
5h ago

Current position

7818A8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7818A8 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
DKH1657 Juneyao Airlines 7 2026-05-18
DKH1601 Juneyao Airlines 6 2026-05-10
DKH1670 Juneyao Airlines 5 2026-05-29
DKH1607 Juneyao Airlines 5 2026-05-28
DKH1379 Juneyao Airlines 5 2026-05-22
DKH1662 Juneyao Airlines 4 2026-05-27
DKH1661 Juneyao Airlines 4 2026-05-26
DKH1658 Juneyao Airlines 4 2026-05-19
DKH1656 Juneyao Airlines 4 2026-05-23
DKH1655 Juneyao Airlines 4 2026-05-23
DKH1386 Juneyao Airlines 3 2026-05-12
DKH8003 - 2 2026-04-15
DKH1884 Juneyao Airlines 2 2026-04-17
DKH1881 Juneyao Airlines 2 2026-05-18
DKH1790 Juneyao Airlines 2 2026-04-20
DKH1667 Juneyao Airlines 2 2026-05-15
DKH1608 Juneyao Airlines 2 2026-05-28
DKH1506 Juneyao Airlines 2 2026-05-29
DKH1385 Juneyao Airlines 2 2026-05-12
DKH1380 Juneyao Airlines 2 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 DKH1670 SYD → PVG May 29, 22:45 UTCMay 29, 23:35 UTC50m
2026-05-29 DKH1669 PVG → SYD May 29, 18:40 UTCMay 29, 20:40 UTC2h 0m
2026-05-29 DKH1506 KIX → PVG May 29, 04:20 UTCMay 29, 05:00 UTC40m
2026-05-28 DKH1608 HEL → PVG May 28, 14:45 UTCMay 29, 02:40 UTC11h 55m
2026-05-28 DKH1607 PVG → HEL May 28, 10:40 UTCMay 28, 10:45 UTC5m
2026-05-27 DKH1607 PVG → HEL May 27, 16:20 UTCMay 28, 09:50 UTC17h 30m
2026-05-27 DKH1662 MAN → PVG May 27, 12:05 UTCMay 28, 09:50 UTC21h 45m
2026-05-27 DKH1662 MAN → PVG May 27, 10:30 UTCMay 28, 09:50 UTC23h 20m
2026-05-26 DKH1661 PVG → MAN May 26, 11:34 UTCMay 27, 05:14 UTC17h 40m
2026-05-26 DKH1661 PVG → MAN May 26, 08:39 UTCMay 27, 05:14 UTC20h 35m
2026-05-25 DKH1662 MAN → PVG May 25, 10:30 UTCMay 26, 03:45 UTC17h 15m
2026-05-24 DKH1661 PVG → MAN May 24, 13:55 UTCMay 25, 05:20 UTC15h 25m
2026-05-23 DKH1656 MEL → PVG May 23, 22:20 UTCMay 24, 12:35 UTC14h 15m
2026-05-23 DKH1655 PVG → MEL May 23, 04:35 UTCMay 23, 19:25 UTC14h 50m
2026-05-22 DKH1379 PVG → NRT May 22, 13:30 UTCMay 23, 02:35 UTC13h 5m
2026-05-21 DKH1656 MEL → PVG May 21, 22:25 UTCMay 22, 12:00 UTC13h 35m
2026-05-21 DKH1655 PVG → MEL May 21, 04:10 UTCMay 21, 19:50 UTC15h 40m
2026-05-21 DKH1505 PVG → KIX May 21, 01:30 UTCMay 21, 02:20 UTC50m
2026-05-20 DKH1390 NGO → PVG May 20, 11:55 UTCMay 20, 12:50 UTC55m
2026-05-20 DKH1506 KIX → PVG May 20, 04:10 UTCMay 20, 09:40 UTC5h 31m
2026-05-19 DKH1658 ATH → PVG May 19, 11:30 UTCMay 20, 02:15 UTC14h 45m
2026-05-18 DKH1657 PVG → ATH May 18, 22:40 UTCMay 19, 04:25 UTC5h 45m
2026-05-18 DKH1882 SZX → SHA May 18, 04:05 UTCMay 18, 04:15 UTC10m
2026-05-18 DKH1881 SHA → SZX May 18, 01:20 UTCMay 18, 01:35 UTC15m
2026-05-15 DKH1668 MXP → CGO May 15, 20:35 UTCMay 16, 00:10 UTC3h 35m
2026-05-15 DKH1667 CGO → MXP May 15, 10:45 UTCMay 15, 17:55 UTC7h 9m
2026-05-14 DKH1667 CGO → MXP May 14, 14:05 UTCMay 15, 14:00 UTC23h 55m
2026-05-14 DKH1658 ATH → PVG May 14, 12:30 UTCMay 15, 11:15 UTC22h 45m
2026-05-13 DKH1657 PVG → ATH May 13, 12:00 UTCMay 14, 04:20 UTC16h 20m
2026-05-13 DKH1657 PVG → ATH May 13, 09:10 UTCMay 14, 04:20 UTC19h 10m
2026-05-12 DKH1386 HND → PVG May 12, 15:40 UTCMay 13, 06:30 UTC14h 50m
2026-05-12 DKH1385 PVG → HND May 12, 04:05 UTCMay 12, 13:15 UTC9h 10m
2026-05-11 DKH1662 MAN → PVG May 11, 10:30 UTCMay 11, 16:35 UTC6h 5m
2026-05-10 DKH1661 PVG → MAN May 10, 11:35 UTCMay 11, 05:00 UTC17h 25m
2026-05-10 DKH1602 SIN → PVG May 10, 08:50 UTCMay 10, 09:00 UTC10m
2026-05-10 DKH1601 PVG → SIN May 10, 02:39 UTCMay 10, 06:30 UTC3h 50m
2026-05-09 DKH1601 PVG → SIN May 9, 11:40 UTCMay 10, 06:30 UTC18h 50m
2026-05-09 DKH1601 PVG → SIN May 9, 08:45 UTCMay 10, 06:30 UTC21h 45m
2026-05-08 DKH1338 KIX → PVG May 8, 13:40 UTCMay 9, 03:05 UTC13h 25m
2026-05-07 DKH1656 MEL → PVG May 7, 22:30 UTCMay 8, 11:49 UTC13h 20m
2026-05-07 DKH1655 PVG → MEL May 7, 04:40 UTCMay 7, 19:30 UTC14h 50m
2026-05-07 DKH1379 PVG → NRT May 7, 01:30 UTCMay 7, 02:50 UTC1h 20m
2026-05-06 DKH1379 PVG → NRT May 6, 04:25 UTCMay 7, 02:50 UTC22h 24m
2026-05-05 DKH1386 HND → PVG May 5, 15:25 UTCMay 6, 01:50 UTC10h 25m
2026-05-04 DKH1670 SYD → PVG May 4, 22:45 UTCMay 5, 13:10 UTC14h 25m
2026-05-04 DKH1670 SYD → PVG May 4, 05:40 UTCMay 4, 20:45 UTC15h 6m
2026-05-03 DKH1670 SYD → PVG May 3, 22:34 UTCMay 4, 20:45 UTC22h 11m
2026-05-03 DKH1380 NRT → PVG May 3, 04:40 UTCMay 3, 20:20 UTC15h 40m
2026-05-02 DKH1379 PVG → NRT May 2, 13:55 UTCMay 3, 02:50 UTC12h 55m
2026-05-01 DKH1670 SYD → PVG May 1, 22:40 UTCMay 2, 11:40 UTC13h 1m

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

Mode-S 7818A8 frequently asked

What is Mode-S code 7818A8?
7818A8 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-20EC.
Where is Mode-S 7818A8 registered?
Mode-S code 7818A8 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7818A8 broadcasting right now?
Yes. Mode-S 7818A8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7818A8, octal 36014250, decimal 7,870,632.
What flights does 7818A8 operate?
Mode-S 7818A8 has broadcast 20 distinct callsigns, including DKH1657, DKH1601, DKH1670, DKH1607, DKH1379.