Apparatus

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sensors Mode-S transponder

780EC0

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6166 · BOEING 737-800

Hex
780EC0
Octal
36007300
Decimal
7,868,096
Country
CN
Tail
B-6166
Type
B738
No current signal · last broadcast 5d ago
Flights observed
118
Distinct callsigns
20
Country
CN
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 780EC0.

Country allocation

The ICAO 24-bit address 780EC0 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
CUA5858 China United Airlines 14 2026-07-24
CUA5685 China United Airlines 14 2026-07-26
CUA5857 China United Airlines 13 2026-07-24
CUA5686 China United Airlines 12 2026-07-26
CUA5876 - 10 2026-07-19
CUA5651 - 9 2026-07-21
CUA5519 - 8 2026-06-24
CUA5652 - 6 2026-07-20
CUA5875 - 4 2026-07-19
CUA5852 China United Airlines 4 2026-05-22
CUA5851 China United Airlines 4 2026-05-22
CUA5520 - 4 2026-06-20
CUA5811 China United Airlines 3 2026-06-25
CUA5525 China United Airlines 3 2026-05-22
CUA5509 China United Airlines 3 2026-05-26
CUA5985 - 1 2026-07-22
CUA5812 China United Airlines 1 2026-06-10
CUA5612 China United Airlines 1 2026-07-25
CUA5611 China United Airlines 1 2026-07-25
CUA5562 - 1 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CUA5686 HMI → PKX Jul 26, 14:30 UTCJul 26, 14:45 UTC15m
2026-07-26 CUA5685 PKX → HMI Jul 26, 08:00 UTCJul 26, 08:20 UTC20m
2026-07-25 CUA5562 - Jul 25, 16:15 UTCJul 25, 16:25 UTC10m
2026-07-25 CUA5561 PKX → JXA Jul 25, 11:30 UTCJul 25, 11:40 UTC10m
2026-07-25 CUA5612 URC → PKX Jul 25, 09:05 UTCJul 25, 09:15 UTC10m
2026-07-25 CUA5611 PKX → URC Jul 25, 00:50 UTCJul 25, 01:10 UTC20m
2026-07-24 CUA5858 SZX → PKX Jul 24, 03:55 UTCJul 24, 04:05 UTC10m
2026-07-24 CUA5857 PKX → SZX Jul 24, 02:05 UTCJul 24, 02:15 UTC10m
2026-07-23 CUA5686 HMI → PKX Jul 23, 14:20 UTCJul 23, 14:35 UTC15m
2026-07-23 CUA5685 PKX → HMI Jul 23, 08:15 UTCJul 23, 08:35 UTC20m
2026-07-23 CUA5858 SZX → PKX Jul 23, 03:55 UTCJul 23, 04:10 UTC15m
2026-07-23 CUA5857 PKX → SZX Jul 23, 01:55 UTCJul 23, 02:15 UTC20m
2026-07-22 CUA5985 - Jul 22, 11:35 UTCJul 22, 12:00 UTC25m
2026-07-21 CUA5651 - Jul 21, 23:20 UTCJul 21, 23:40 UTC20m
2026-07-21 CUA5858 SZX → PKX Jul 21, 04:15 UTCJul 21, 04:40 UTC25m
2026-07-21 CUA5857 - Jul 21, 02:00 UTCJul 21, 02:20 UTC20m
2026-07-20 CUA5652 - Jul 20, 15:45 UTCJul 20, 16:00 UTC15m
2026-07-20 CUA5651 - Jul 20, 06:30 UTCJul 20, 07:05 UTC35m
2026-07-19 CUA5876 - Jul 19, 05:30 UTCJul 19, 05:50 UTC20m
2026-07-19 CUA5875 - Jul 19, 03:35 UTCJul 19, 03:50 UTC15m
2026-07-18 CUA5686 - Jul 18, 14:30 UTCJul 18, 14:40 UTC10m
2026-07-18 CUA5685 - Jul 18, 08:00 UTCJul 18, 08:30 UTC30m
2026-07-17 CUA5858 - Jul 17, 03:55 UTCJul 17, 04:04 UTC10m
2026-07-17 CUA5857 - Jul 17, 01:49 UTCJul 17, 02:10 UTC20m
2026-07-16 CUA5876 - Jul 16, 05:50 UTCJul 16, 06:05 UTC15m
2026-07-16 CUA5875 - Jul 16, 03:55 UTCJul 16, 04:15 UTC20m
2026-07-14 CUA5686 - Jul 14, 14:15 UTCJul 14, 14:25 UTC10m
2026-07-14 CUA5685 - Jul 14, 08:00 UTCJul 14, 08:20 UTC20m
2026-07-13 CUA5686 - Jul 13, 14:10 UTCJul 13, 14:20 UTC10m
2026-07-13 CUA5685 - Jul 13, 08:01 UTCJul 13, 08:20 UTC20m
2026-07-12 CUA5686 - Jul 12, 15:20 UTCJul 12, 15:35 UTC15m
2026-07-12 CUA5685 - Jul 12, 09:20 UTCJul 12, 09:40 UTC20m
2026-07-12 CUA5652 - Jul 12, 07:20 UTCJul 12, 07:31 UTC10m
2026-07-12 CUA5651 - Jul 12, 00:01 UTCJul 12, 00:20 UTC20m
2026-07-11 CUA5685 - Jul 11, 08:10 UTCJul 11, 08:25 UTC15m
2026-07-10 CUA5685 - Jul 10, 08:05 UTCJul 10, 14:55 UTC6h 50m
2026-07-08 CUA5651 - Jul 8, 23:30 UTCJul 9, 06:50 UTC7h 20m
2026-07-08 CUA5529 - Jul 8, 10:30 UTCJul 8, 10:50 UTC20m
2026-07-08 CUA5858 - Jul 8, 05:40 UTCJul 8, 05:55 UTC15m
2026-07-08 CUA5857 - Jul 8, 02:20 UTCJul 8, 02:40 UTC20m
2026-07-07 CUA5686 - Jul 7, 16:25 UTCJul 7, 16:35 UTC10m
2026-07-07 CUA5685 - Jul 7, 10:30 UTCJul 7, 10:55 UTC25m
2026-07-05 CUA5686 - Jul 5, 14:20 UTCJul 5, 15:00 UTC40m
2026-07-05 CUA5685 - Jul 5, 07:55 UTCJul 5, 08:10 UTC15m
2026-07-03 CUA5652 - Jul 3, 06:55 UTCJul 3, 07:10 UTC15m
2026-07-02 CUA5651 - Jul 2, 23:20 UTCJul 2, 23:35 UTC15m
2026-07-02 CUA5686 - Jul 2, 14:20 UTCJul 2, 14:35 UTC15m
2026-07-02 CUA5685 - Jul 2, 08:10 UTCJul 2, 08:20 UTC10m
2026-07-01 CUA5652 - Jul 1, 06:50 UTCJul 1, 07:00 UTC10m
2026-06-30 CUA5651 - Jun 30, 23:15 UTCJun 30, 23:40 UTC25m

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-6166 page for operator, model, and routing details .

Mode-S 780EC0 frequently asked

What is Mode-S code 780EC0?
780EC0 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6166.
Where is Mode-S 780EC0 registered?
Mode-S code 780EC0 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780EC0 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780EC0, octal 36007300, decimal 7,868,096.
What flights does 780EC0 operate?
Mode-S 780EC0 has broadcast 20 distinct callsigns, including CUA5858, CUA5685, CUA5857, CUA5686, CUA5876.