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
No current signal · last broadcast Jul 26, 10:55 UTC
Flights observed
182
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 10:55 UTC

Last known position

Most recent position reported by Mode-S 7818A8.

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
DKH1662 Juneyao Airlines 17 2026-07-25
DKH1657 - 15 2026-07-12
DKH1661 Juneyao Airlines 12 2026-07-24
DKH1607 - 12 2026-06-25
DKH1379 - 11 2026-07-08
DKH1658 - 10 2026-07-13
DKH1601 - 8 2026-06-19
DKH1506 Juneyao Airlines 8 2026-07-24
DKH1656 - 7 2026-07-09
DKH1380 - 7 2026-07-07
DKH1670 Juneyao Airlines 6 2026-06-12
DKH1667 Juneyao Airlines 6 2026-07-20
DKH1660 - 5 2026-07-22
DKH1655 - 5 2026-07-09
DKH1608 - 5 2026-06-25
DKH1505 Juneyao Airlines 5 2026-07-23
DKH1386 - 5 2026-07-07
DKH1338 - 5 2026-06-21
DKH1355 - 4 2026-07-16
DKH1886 Juneyao Airlines 3 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 DKH1662 MAN → PVG Jul 25, 16:05 UTCJul 26, 10:55 UTC18h 51m
2026-07-25 DKH1662 MAN → PVG Jul 25, 15:50 UTCJul 26, 10:55 UTC19h 6m
2026-07-25 DKH1662 MAN → PVG Jul 25, 12:05 UTCJul 26, 10:55 UTC22h 51m
2026-07-25 DKH1662 MAN → PVG Jul 25, 10:15 UTCJul 25, 16:30 UTC6h 15m
2026-07-24 DKH1661 PVG → MAN Jul 24, 11:55 UTCJul 25, 05:40 UTC17h 45m
2026-07-24 DKH1506 KIX → PVG Jul 24, 04:25 UTCJul 24, 10:15 UTC5h 50m
2026-07-23 DKH1505 PVG → KIX Jul 23, 08:55 UTCJul 24, 02:15 UTC17h 20m
2026-07-22 DKH1660 - Jul 22, 12:05 UTCJul 23, 06:25 UTC18h 20m
2026-07-22 DKH1660 - Jul 22, 11:10 UTCJul 23, 06:25 UTC19h 15m
2026-07-21 DKH1659 PVG → BRU Jul 21, 23:40 UTCJul 22, 05:25 UTC5h 45m
2026-07-20 DKH1668 MXP → CGO Jul 20, 20:35 UTCJul 21, 00:00 UTC3h 25m
2026-07-20 DKH1667 CGO → MXP Jul 20, 10:50 UTCJul 20, 17:35 UTC6h 45m
2026-07-19 DKH1667 CGO → MXP Jul 19, 16:10 UTCJul 20, 16:00 UTC23h 50m
2026-07-19 DKH1662 MAN → PVG Jul 19, 14:05 UTCJul 20, 14:00 UTC23h 55m
2026-07-19 DKH1662 MAN → PVG Jul 19, 12:05 UTCJul 20, 11:20 UTC23h 15m
2026-07-19 DKH1662 - Jul 19, 10:30 UTCJul 19, 16:50 UTC6h 20m
2026-07-18 DKH1661 PVG → MAN Jul 18, 20:20 UTCJul 19, 06:10 UTC9h 50m
2026-07-18 DKH1506 KIX → PVG Jul 18, 04:05 UTCJul 19, 02:05 UTC22h 0m
2026-07-17 DKH1662 MAN → KIX Jul 17, 10:30 UTCJul 18, 02:19 UTC15h 50m
2026-07-16 DKH1661 PVG → MAN Jul 16, 11:05 UTCJul 17, 05:20 UTC18h 15m
2026-07-16 DKH1661 PVG → MAN Jul 16, 04:35 UTCJul 17, 03:59 UTC23h 25m
2026-07-16 DKH1355 - Jul 16, 02:40 UTCJul 17, 01:25 UTC22h 45m
2026-07-15 DKH1355 - Jul 15, 16:35 UTCJul 16, 13:34 UTC21h 0m
2026-07-15 DKH1662 - Jul 15, 14:05 UTCJul 16, 13:34 UTC23h 30m
2026-07-15 DKH1662 - Jul 15, 12:05 UTCJul 16, 11:40 UTC23h 35m
2026-07-15 DKH1662 - Jul 15, 10:35 UTCJul 16, 05:45 UTC19h 10m
2026-07-14 DKH1661 - Jul 14, 19:35 UTCJul 15, 05:15 UTC9h 39m
2026-07-14 DKH1661 - Jul 14, 08:20 UTCJul 15, 05:15 UTC20h 54m
2026-07-13 DKH1658 - Jul 13, 12:05 UTCJul 14, 06:45 UTC18h 40m
2026-07-13 DKH1658 ATH → TPE Jul 13, 11:55 UTCJul 14, 06:45 UTC18h 50m
2026-07-12 DKH1657 - Jul 12, 10:15 UTCJul 13, 04:10 UTC17h 55m
2026-07-11 DKH1662 MAN → KIX Jul 11, 18:40 UTCJul 12, 08:45 UTC14h 5m
2026-07-10 DKH1661 KIX → MAN Jul 10, 14:20 UTCJul 11, 05:10 UTC14h 51m
2026-07-09 DKH1656 MEL → KIX Jul 9, 22:45 UTCJul 10, 13:00 UTC14h 15m
2026-07-09 DKH1655 NRT → MEL Jul 9, 06:00 UTCJul 9, 20:20 UTC14h 20m
2026-07-08 DKH1379 - Jul 8, 11:55 UTCJul 9, 04:40 UTC16h 45m
2026-07-08 DKH1506 - Jul 8, 04:10 UTCJul 8, 09:50 UTC5h 40m
2026-07-07 DKH1386 - Jul 7, 15:20 UTCJul 8, 02:20 UTC11h 0m
2026-07-07 DKH1380 NRT → HND Jul 7, 04:35 UTCJul 7, 13:15 UTC8h 40m
2026-07-06 DKH1379 - Jul 6, 11:55 UTCJul 7, 02:45 UTC14h 50m
2026-07-06 DKH1506 - Jul 6, 04:20 UTCJul 6, 09:40 UTC5h 20m
2026-07-05 DKH1658 ATH → KIX Jul 5, 12:35 UTCJul 6, 02:15 UTC13h 40m
2026-07-04 DKH1657 - Jul 4, 11:15 UTCJul 5, 05:15 UTC18h 0m
2026-07-04 DKH1657 - Jul 4, 05:10 UTCJul 5, 03:30 UTC22h 20m
2026-07-04 DKH1355 - Jul 4, 02:40 UTCJul 4, 13:45 UTC11h 5m
2026-07-03 DKH1355 - Jul 3, 16:05 UTCJul 4, 13:45 UTC21h 40m
2026-07-03 DKH1660 - Jul 3, 14:05 UTCJul 4, 13:45 UTC23h 40m
2026-07-03 DKH1660 - Jul 3, 12:05 UTCJul 4, 11:35 UTC23h 30m
2026-07-03 DKH1660 - Jul 3, 10:40 UTCJul 4, 05:35 UTC18h 55m
2026-07-02 DKH1659 - Jul 2, 19:45 UTCJul 3, 05:25 UTC9h 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-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?
No active broadcast right now. Last signal was Jul 26, 10:55 UTC.
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 DKH1662, DKH1657, DKH1661, DKH1607, DKH1379.