Apparatus

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sensors Mode-S transponder

781AEA

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-220N · BOEING 737-800

Hex
781AEA
Octal
36015352
Decimal
7,871,210
Country
CN
Tail
B-220N
Type
B738
No current signal · last broadcast 53m ago
Flights observed
100
Distinct callsigns
7
Country
CN
Last broadcast
53m ago

Last known position

Most recent position reported by Mode-S 781AEA.

Country allocation

The ICAO 24-bit address 781AEA 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 7 distinct

Callsign Airline Flights Last seen
LHA4116 - 29 2026-07-14
LHA4115 - 21 2026-06-27
LHA4120 - 16 2026-07-16
LHA4119 - 16 2026-07-18
LHA4204 - 8 2026-06-16
LHA4203 - 8 2026-06-16
4116 - 2 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 LHA4119 - Jul 18, 00:00 UTCJul 18, 01:45 UTC1h 45m
2026-07-16 LHA4120 - Jul 16, 03:10 UTCJul 16, 04:45 UTC1h 35m
2026-07-15 LHA4119 - Jul 15, 23:15 UTCJul 16, 01:05 UTC1h 50m
2026-07-14 LHA4116 - Jul 14, 22:25 UTCJul 14, 23:25 UTC59m
2026-07-14 LHA4120 - Jul 14, 02:35 UTCJul 14, 21:10 UTC18h 35m
2026-07-13 LHA4119 - Jul 13, 23:15 UTCJul 14, 01:10 UTC1h 55m
2026-07-09 LHA4116 - Jul 9, 22:30 UTCJul 9, 23:30 UTC1h 0m
2026-07-09 LHA4120 - Jul 9, 02:45 UTCJul 9, 21:20 UTC18h 35m
2026-07-08 LHA4119 - Jul 8, 23:20 UTCJul 9, 01:05 UTC1h 45m
2026-07-07 LHA4116 - Jul 7, 22:35 UTCJul 7, 23:30 UTC55m
2026-07-07 LHA4120 NRT → KIX Jul 7, 02:35 UTCJul 7, 21:25 UTC18h 50m
2026-07-06 LHA4119 - Jul 6, 23:20 UTCJul 7, 01:00 UTC1h 40m
2026-07-04 LHA4116 - Jul 4, 22:25 UTCJul 4, 23:30 UTC1h 5m
2026-07-04 LHA4120 - Jul 4, 02:35 UTCJul 4, 21:25 UTC18h 50m
2026-07-03 LHA4119 - Jul 3, 23:15 UTCJul 4, 01:00 UTC1h 45m
2026-06-30 LHA4116 - Jun 30, 22:15 UTCJun 30, 23:15 UTC1h 0m
2026-06-30 LHA4120 - Jun 30, 06:40 UTCJun 30, 21:05 UTC14h 25m
2026-06-30 LHA4119 - Jun 30, 03:30 UTCJun 30, 05:05 UTC1h 35m
2026-06-28 LHA4120 - Jun 28, 11:55 UTCJun 28, 13:45 UTC1h 50m
2026-06-27 LHA4119 KIX → NRT Jun 27, 22:55 UTCJun 28, 10:10 UTC11h 15m
2026-06-27 LHA4115 - Jun 27, 20:14 UTCJun 27, 21:04 UTC50m
2026-06-25 LHA4120 - Jun 25, 02:39 UTCJun 25, 04:25 UTC1h 45m
2026-06-24 LHA4119 - Jun 24, 23:29 UTCJun 25, 01:04 UTC1h 35m
2026-06-23 LHA4116 - Jun 23, 22:29 UTCJun 23, 23:34 UTC1h 5m
2026-06-23 LHA4120 - Jun 23, 02:34 UTCJun 23, 21:24 UTC18h 50m
2026-06-23 LHA4120 NRT → KIX Jun 23, 02:29 UTCJun 23, 21:24 UTC18h 55m
2026-06-22 LHA4119 - Jun 22, 23:20 UTCJun 23, 00:50 UTC1h 30m
2026-06-20 LHA4116 - Jun 20, 22:14 UTCJun 20, 23:14 UTC1h 0m
2026-06-20 LHA4120 NRT → NGB Jun 20, 02:40 UTCJun 20, 21:10 UTC18h 30m
2026-06-19 LHA4119 NGB → NRT Jun 19, 23:25 UTCJun 20, 01:09 UTC1h 45m
2026-06-16 LHA4204 - Jun 16, 05:40 UTCJun 16, 05:55 UTC15m
2026-06-16 LHA4203 - Jun 16, 03:55 UTCJun 16, 04:20 UTC25m
2026-06-14 LHA4204 - Jun 14, 06:00 UTCJun 14, 06:15 UTC15m
2026-06-14 LHA4203 - Jun 14, 04:35 UTCJun 14, 04:55 UTC20m
2026-06-13 LHA4204 ICN → WEH Jun 13, 05:05 UTCJun 13, 05:20 UTC15m
2026-06-13 LHA4203 WEH → ICN Jun 13, 02:50 UTCJun 13, 03:10 UTC20m
2026-06-09 LHA4116 KIX → NGB Jun 9, 22:40 UTCJun 9, 23:30 UTC50m
2026-06-09 LHA4120 NRT → NGB Jun 9, 02:35 UTCJun 9, 21:10 UTC18h 35m
2026-06-08 LHA4119 NGB → NRT Jun 8, 23:45 UTCJun 9, 01:00 UTC1h 15m
2026-06-04 LHA4116 KIX → NGB Jun 4, 22:10 UTCJun 4, 23:00 UTC50m
2026-06-04 LHA4120 NRT → NGB Jun 4, 04:55 UTCJun 4, 21:05 UTC16h 10m
2026-06-04 LHA4119 NGB → NRT Jun 4, 01:55 UTCJun 4, 03:20 UTC1h 25m
2026-06-03 LHA4204 ICN → WEH Jun 3, 06:25 UTCJun 3, 06:40 UTC15m
2026-06-03 LHA4203 WEH → ICN Jun 3, 04:15 UTCJun 3, 04:35 UTC20m
2026-05-30 LHA4116 KIX → NGB May 30, 22:40 UTCMay 30, 23:30 UTC50m
2026-05-30 LHA4120 NRT → NGB May 30, 02:35 UTCMay 30, 21:15 UTC18h 40m
2026-05-29 LHA4119 NGB → NRT May 29, 23:40 UTCMay 30, 01:00 UTC1h 20m
2026-05-28 LHA4116 KIX → NGB May 28, 22:25 UTCMay 28, 23:10 UTC45m
2026-05-28 LHA4120 NRT → NGB May 28, 02:35 UTCMay 28, 21:05 UTC18h 30m
2026-05-27 LHA4119 NGB → NRT May 27, 23:30 UTCMay 28, 01:00 UTC1h 30m

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-220N page for operator, model, and routing details .

Mode-S 781AEA frequently asked

What is Mode-S code 781AEA?
781AEA is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-220N.
Where is Mode-S 781AEA registered?
Mode-S code 781AEA is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781AEA broadcasting right now?
No active broadcast right now. Last signal was 53m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781AEA, octal 36015352, decimal 7,871,210.
What flights does 781AEA operate?
Mode-S 781AEA has broadcast 7 distinct callsigns, including LHA4116, LHA4115, LHA4120, LHA4119, LHA4204.