Apparatus

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sensors Mode-S transponder

780F42

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8398 · AIRBUS A-321

Hex
780F42
Octal
36007502
Decimal
7,868,226
Country
CN
Tail
B-8398
Type
A321
No current signal · last broadcast 7h ago
Flights observed
113
Distinct callsigns
13
Country
CN
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 780F42.

Country allocation

The ICAO 24-bit address 780F42 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 13 distinct

Callsign Airline Flights Last seen
CES2044 - 20 2026-07-13
CES560 - 18 2026-07-13
CES2043 - 18 2026-07-13
CES559 - 15 2026-07-13
CES5244 - 14 2026-07-04
CES5243 - 12 2026-07-04
CES2042 China Eastern Airlines 4 2026-06-05
CES2041 China Eastern Airlines 4 2026-06-05
CES2040 China Eastern Airlines 2 2026-06-08
CES2039 China Eastern Airlines 2 2026-06-08
CES2034 China Eastern Airlines 2 2026-05-05
CES6491 China Eastern Airlines 1 2026-05-28
CES5258 - 1 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CES2044 - Jul 13, 23:40 UTCJul 14, 00:00 UTC20m
2026-07-13 CES2043 - Jul 13, 11:00 UTCJul 13, 11:30 UTC30m
2026-07-13 CES560 - Jul 13, 07:45 UTCJul 13, 08:10 UTC25m
2026-07-13 CES559 - Jul 13, 06:01 UTCJul 13, 06:25 UTC25m
2026-07-10 CES5258 - Jul 10, 12:25 UTCJul 10, 12:40 UTC15m
2026-07-04 CES5244 - Jul 4, 12:15 UTCJul 4, 12:25 UTC10m
2026-07-04 CES5243 - Jul 4, 10:40 UTCJul 4, 11:00 UTC20m
2026-07-03 CES2044 - Jul 3, 23:40 UTCJul 4, 00:10 UTC30m
2026-07-03 CES2043 - Jul 3, 11:10 UTCJul 3, 11:30 UTC20m
2026-07-03 CES560 - Jul 3, 07:45 UTCJul 3, 08:10 UTC25m
2026-07-03 CES559 - Jul 3, 05:55 UTCJul 3, 06:35 UTC40m
2026-07-01 CES5244 - Jul 1, 11:05 UTCJul 1, 11:20 UTC15m
2026-07-01 CES5243 - Jul 1, 08:45 UTCJul 1, 09:05 UTC20m
2026-06-30 CES2044 - Jun 30, 23:45 UTCJul 1, 00:15 UTC30m
2026-06-30 CES2043 - Jun 30, 11:10 UTCJun 30, 11:30 UTC20m
2026-06-30 CES560 - Jun 30, 07:40 UTCJun 30, 08:10 UTC30m
2026-06-30 CES559 - Jun 30, 06:00 UTCJun 30, 06:25 UTC25m
2026-06-28 CES5244 - Jun 28, 12:44 UTCJun 28, 12:55 UTC10m
2026-06-28 CES5243 - Jun 28, 10:24 UTCJun 28, 10:44 UTC20m
2026-06-27 CES2044 - Jun 27, 23:39 UTCJun 28, 00:09 UTC30m
2026-06-27 CES2043 - Jun 27, 10:54 UTCJun 27, 11:25 UTC30m
2026-06-27 CES560 - Jun 27, 07:39 UTCJun 27, 08:05 UTC25m
2026-06-27 CES559 - Jun 27, 06:05 UTCJun 27, 06:30 UTC25m
2026-06-23 CES2044 - Jun 23, 23:34 UTCJun 23, 23:59 UTC25m
2026-06-23 CES2043 - Jun 23, 10:55 UTCJun 23, 11:29 UTC35m
2026-06-23 CES560 - Jun 23, 07:45 UTCJun 23, 08:04 UTC20m
2026-06-23 CES559 - Jun 23, 05:59 UTCJun 23, 06:29 UTC30m
2026-06-19 CES2044 - Jun 19, 23:49 UTCJun 20, 00:04 UTC15m
2026-06-19 CES2043 - Jun 19, 11:49 UTCJun 19, 12:09 UTC20m
2026-06-15 CES5243 - Jun 15, 13:40 UTCJun 15, 13:50 UTC10m
2026-06-14 CES2044 ICN → TAO Jun 14, 23:39 UTCJun 15, 00:05 UTC25m
2026-06-14 CES2043 TAO → ICN Jun 14, 11:00 UTCJun 14, 11:30 UTC30m
2026-06-14 CES560 - Jun 14, 07:45 UTCJun 14, 08:10 UTC25m
2026-06-14 CES559 TAO → ICN Jun 14, 06:10 UTCJun 14, 06:30 UTC20m
2026-06-11 CES5244 SZX → NGB Jun 11, 11:15 UTCJun 11, 11:30 UTC15m
2026-06-10 CES2044 ICN → TAO Jun 10, 23:45 UTCJun 11, 00:15 UTC30m
2026-06-10 CES2043 TAO → ICN Jun 10, 11:15 UTCJun 10, 11:45 UTC30m
2026-06-10 CES560 ICN → TAO Jun 10, 07:45 UTCJun 10, 08:00 UTC15m
2026-06-10 CES559 TAO → ICN Jun 10, 06:05 UTCJun 10, 06:30 UTC25m
2026-06-08 CES2040 ICN → TAO Jun 8, 03:15 UTCJun 8, 03:30 UTC15m
2026-06-08 CES2039 TAO → ICN Jun 8, 01:30 UTCJun 8, 02:00 UTC30m
2026-06-07 CES5244 SZX → NGB Jun 7, 12:25 UTCJun 7, 12:35 UTC10m
2026-06-06 CES2044 ICN → TAO Jun 6, 23:44 UTCJun 7, 10:15 UTC10h 30m
2026-06-06 CES2043 TAO → ICN Jun 6, 11:00 UTCJun 6, 11:30 UTC30m
2026-06-06 CES560 ICN → TAO Jun 6, 07:45 UTCJun 6, 08:10 UTC25m
2026-06-06 CES559 TAO → ICN Jun 6, 05:55 UTCJun 6, 06:20 UTC25m
2026-06-05 CES2042 TPE → TAO Jun 5, 05:20 UTCJun 5, 05:45 UTC25m
2026-06-05 CES2041 TAO → TPE Jun 5, 02:40 UTCJun 5, 03:25 UTC45m
2026-06-04 CES5244 SZX → NGB Jun 4, 10:10 UTCJun 4, 10:20 UTC10m
2026-06-04 CES5243 NGB → SZX Jun 4, 08:55 UTCJun 4, 09:05 UTC10m

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-8398 page for operator, model, and routing details .

Mode-S 780F42 frequently asked

What is Mode-S code 780F42?
780F42 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8398.
Where is Mode-S 780F42 registered?
Mode-S code 780F42 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780F42 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780F42, octal 36007502, decimal 7,868,226.
What flights does 780F42 operate?
Mode-S 780F42 has broadcast 13 distinct callsigns, including CES2044, CES560, CES2043, CES559, CES5244.