Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

780E81

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6146 · BOEING 737-800

Hex
780E81
Octal
36007201
Decimal
7,868,033
Country
CN
Tail
B-6146
Type
B738
No current signal · last broadcast 1d ago
Flights observed
89
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 780E81.

Country allocation

The ICAO 24-bit address 780E81 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
CES9639 - 8 2026-06-28
CES9640 - 6 2026-06-29
CES2003 China Eastern Airlines 6 2026-07-05
CES9690 - 5 2026-07-06
CES9614 China Eastern Airlines 5 2026-06-12
CES9613 China Eastern Airlines 5 2026-06-12
CES2004 - 5 2026-07-05
CES9700 - 4 2026-07-10
CES9624 - 4 2026-07-08
CES9623 - 4 2026-07-08
CES734 - 4 2026-07-10
CES733 - 4 2026-07-10
CES5758 - 3 2026-06-25
CES5093 - 3 2026-07-16
CES9658 China Eastern Airlines 2 2026-06-20
CES9620 China Eastern Airlines 2 2026-06-09
CES9619 China Eastern Airlines 2 2026-06-09
CES5831 China Eastern Airlines 2 2026-06-22
CES5781 - 2 2026-06-26
CES5740 - 2 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 CES5093 - Jul 16, 08:40 UTCJul 16, 14:20 UTC5h 40m
2026-07-12 CES6823 - Jul 12, 22:55 UTCJul 12, 23:10 UTC15m
2026-07-10 CES9700 - Jul 10, 14:30 UTCJul 11, 04:55 UTC14h 25m
2026-07-10 CES734 - Jul 10, 09:35 UTCJul 10, 09:50 UTC15m
2026-07-10 CES733 - Jul 10, 07:20 UTCJul 10, 07:45 UTC25m
2026-07-09 CES5747 - Jul 9, 14:40 UTCJul 9, 14:55 UTC15m
2026-07-08 CES9624 - Jul 8, 03:35 UTCJul 8, 03:50 UTC15m
2026-07-08 CES9623 - Jul 8, 01:45 UTCJul 8, 02:15 UTC30m
2026-07-07 CES5740 - Jul 7, 18:15 UTCJul 7, 19:10 UTC55m
2026-07-06 CES9690 - Jul 6, 12:10 UTCJul 6, 13:00 UTC50m
2026-07-05 CES2004 - Jul 5, 23:15 UTCJul 6, 00:00 UTC45m
2026-07-05 CES2003 KMG → ICN Jul 5, 14:10 UTCJul 5, 14:50 UTC40m
2026-07-03 CES2004 - Jul 3, 22:55 UTCJul 3, 23:35 UTC40m
2026-07-03 CES2003 KMG → ICN Jul 3, 04:50 UTCJul 3, 13:45 UTC8h 55m
2026-07-02 CES5797 - Jul 2, 23:20 UTCJul 2, 23:30 UTC10m
2026-06-29 CES9640 - Jun 29, 03:05 UTCJun 29, 09:29 UTC6h 25m
2026-06-28 CES9639 - Jun 28, 12:39 UTCJun 29, 02:00 UTC13h 20m
2026-06-27 CES734 - Jun 27, 10:19 UTCJun 27, 11:35 UTC1h 15m
2026-06-27 CES733 - Jun 27, 07:59 UTCJun 27, 08:44 UTC45m
2026-06-26 CES5781 - Jun 26, 11:00 UTCJun 27, 07:15 UTC20h 15m
2026-06-25 CES5781 - Jun 25, 12:19 UTCJun 26, 11:09 UTC22h 50m
2026-06-25 CES5758 - Jun 25, 11:19 UTCJun 25, 12:19 UTC1h 0m
2026-06-22 CES5832 HAK → KMG Jun 22, 13:35 UTCJun 22, 13:54 UTC20m
2026-06-22 CES5831 KMG → HAK Jun 22, 10:55 UTCJun 22, 11:09 UTC15m
2026-06-21 CES5740 - Jun 21, 15:19 UTCJun 22, 11:09 UTC19h 50m
2026-06-20 CES9658 KMG → HET Jun 20, 13:29 UTCJun 20, 14:39 UTC1h 10m
2026-06-19 CES9700 - Jun 19, 14:29 UTCJun 20, 12:14 UTC21h 45m
2026-06-19 CES9700 - Jun 19, 10:19 UTCJun 20, 01:29 UTC15h 10m
2026-06-19 CES734 - Jun 19, 09:30 UTCJun 19, 09:44 UTC15m
2026-06-19 CES733 - Jun 19, 06:20 UTCJun 19, 07:54 UTC1h 35m
2026-06-17 CES2004 - Jun 17, 22:50 UTCJun 17, 23:30 UTC40m
2026-06-17 CES2003 KMG → ICN Jun 17, 00:40 UTCJun 17, 13:35 UTC12h 55m
2026-06-16 CES2003 KMG → ICN Jun 16, 15:40 UTCJun 17, 13:35 UTC21h 56m
2026-06-15 CES9640 - Jun 15, 03:10 UTCJun 15, 16:04 UTC12h 55m
2026-06-14 CES9639 - Jun 14, 15:50 UTCJun 15, 01:50 UTC9h 59m
2026-06-13 CES5758 SZX → KMG Jun 13, 12:15 UTCJun 13, 13:20 UTC1h 5m
2026-06-13 CES5732 - Jun 13, 04:45 UTCJun 13, 05:35 UTC50m
2026-06-12 CES9614 BKK → KMG Jun 12, 14:15 UTCJun 12, 14:50 UTC35m
2026-06-12 CES9613 KMG → BKK Jun 12, 11:50 UTCJun 12, 12:35 UTC45m
2026-06-11 CES9690 CAN → KMG Jun 11, 09:40 UTCJun 11, 09:50 UTC10m
2026-06-11 CES9690 CAN → KMG Jun 11, 09:00 UTCJun 11, 09:10 UTC10m
2026-06-10 CES5771 KMG → SYX Jun 10, 12:00 UTCJun 10, 15:05 UTC3h 5m
2026-06-09 CES9620 CNX → KMG Jun 9, 09:15 UTCJun 9, 09:25 UTC10m
2026-06-09 CES9619 KMG → CNX Jun 9, 07:30 UTCJun 9, 08:00 UTC30m
2026-06-08 CES734 HKG → KMG Jun 8, 09:15 UTCJun 8, 09:30 UTC15m
2026-06-08 CES733 KMG → HKG Jun 8, 07:20 UTCJun 8, 07:50 UTC30m
2026-06-07 CES9640 CNX → KMG Jun 7, 03:05 UTCJun 7, 14:40 UTC11h 35m
2026-06-06 CES9639 KMG → CNX Jun 6, 14:59 UTCJun 7, 01:55 UTC10h 55m
2026-06-03 CES2004 ICN → KMG Jun 3, 22:50 UTCJun 4, 15:10 UTC16h 20m
2026-06-03 CES2003 KMG → ICN Jun 3, 13:05 UTCJun 3, 13:30 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-6146 page for operator, model, and routing details .

Mode-S 780E81 frequently asked

What is Mode-S code 780E81?
780E81 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6146.
Where is Mode-S 780E81 registered?
Mode-S code 780E81 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780E81 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780E81, octal 36007201, decimal 7,868,033.
What flights does 780E81 operate?
Mode-S 780E81 has broadcast 20 distinct callsigns, including CES9639, CES9640, CES2003, CES9690, CES9614.