Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7804B1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6506 · AIRBUS A-330-300

Hex
7804B1
Octal
36002261
Decimal
7,865,521
Country
CN
Tail
B-6506
Type
A333
No current signal · last broadcast 1d ago
Flights observed
59
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7804B1.

Country allocation

The ICAO 24-bit address 7804B1 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
CES2075 China Eastern Airlines 6 2026-05-03
CES5348 China Eastern Airlines 5 2026-05-23
CES5339 China Eastern Airlines 5 2026-05-23
CSH9331 Shanghai Airlines 4 2026-05-22
CSH9332 Shanghai Airlines 3 2026-05-22
CES5355 China Eastern Airlines 3 2026-05-13
CES5018 China Eastern Airlines 3 2026-05-27
CES5017 China Eastern Airlines 3 2026-05-27
CES538 China Eastern Airlines 2 2026-04-15
CES5334 China Eastern Airlines 2 2026-05-14
CES5116 China Eastern Airlines 2 2026-05-29
CES240 China Eastern Airlines 2 2026-05-18
CSH9308 Shanghai Airlines 1 2026-04-20
CSH9254 Shanghai Airlines 1 2026-04-20
CES6670 China Eastern Airlines 1 2026-04-30
CES6667 China Eastern Airlines 1 2026-04-30
CES537 China Eastern Airlines 1 2026-04-15
CES5353 China Eastern Airlines 1 2026-04-25
CES5350 China Eastern Airlines 1 2026-04-26
CES5341 China Eastern Airlines 1 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CES5116 PEK → SHA May 29, 07:15 UTCMay 29, 07:25 UTC10m
2026-05-28 CES5306 CAN → SHA May 28, 04:15 UTCMay 28, 04:40 UTC25m
2026-05-27 CES5018 HKG → SHA May 27, 05:14 UTCMay 27, 05:29 UTC15m
2026-05-27 CES5017 SHA → HKG May 27, 02:34 UTCMay 27, 03:29 UTC55m
2026-05-26 CES5302 CAN → SHA May 26, 02:15 UTCMay 26, 02:44 UTC30m
2026-05-23 CES5348 SZX → SHA May 23, 07:45 UTCMay 23, 07:55 UTC10m
2026-05-23 CES5339 SHA → SZX May 23, 05:05 UTCMay 23, 05:15 UTC10m
2026-05-22 CSH9332 SZX → SHA May 22, 04:40 UTCMay 22, 04:50 UTC10m
2026-05-22 CSH9331 SHA → SZX May 22, 01:30 UTCMay 22, 02:15 UTC45m
2026-05-21 CES5115 SHA → PEK May 21, 08:50 UTCMay 21, 09:00 UTC10m
2026-05-19 CES5340 SZX → SHA May 19, 06:00 UTCMay 19, 06:10 UTC10m
2026-05-19 CES5333 SHA → SZX May 19, 03:35 UTCMay 19, 03:55 UTC20m
2026-05-18 CES240 MFM → SHA May 18, 14:00 UTCMay 18, 14:10 UTC10m
2026-05-18 CES240 MFM → SHA May 18, 12:50 UTCMay 18, 13:15 UTC25m
2026-05-18 CES5018 HKG → SHA May 18, 05:20 UTCMay 18, 11:05 UTC5h 45m
2026-05-18 CES5017 SHA → HKG May 18, 03:15 UTCMay 18, 03:40 UTC25m
2026-05-17 CES5098 TSA → SHA May 17, 09:35 UTCMay 17, 10:15 UTC40m
2026-05-17 CES5097 SHA → TSA May 17, 03:05 UTCMay 17, 08:05 UTC5h 0m
2026-05-17 CES511 SHA → GMP May 17, 01:15 UTCMay 17, 01:45 UTC30m
2026-05-15 CES5018 HKG → SHA May 15, 07:00 UTCMay 15, 08:05 UTC1h 5m
2026-05-15 CES5017 SHA → HKG May 15, 03:15 UTCMay 15, 03:40 UTC25m
2026-05-14 CES5334 SZX → SHA May 14, 02:05 UTCMay 14, 02:15 UTC10m
2026-05-13 CES5355 SHA → SZX May 13, 08:40 UTCMay 13, 14:15 UTC5h 35m
2026-05-13 CES5348 SZX → SHA May 13, 07:50 UTCMay 13, 08:05 UTC15m
2026-05-13 CES5339 SHA → SZX May 13, 04:40 UTCMay 13, 05:25 UTC45m
2026-05-10 CES5348 SZX → SHA May 10, 07:50 UTCMay 10, 08:00 UTC10m
2026-05-10 CES5339 SHA → SZX May 10, 04:55 UTCMay 10, 05:14 UTC20m
2026-05-09 CES5348 SZX → SHA May 9, 07:40 UTCMay 9, 07:55 UTC15m
2026-05-09 CES5339 SHA → SZX May 9, 04:35 UTCMay 9, 05:15 UTC40m
2026-05-06 CES5116 PEK → SHA May 6, 07:15 UTCMay 7, 01:50 UTC18h 34m
2026-05-03 CES2075 PKX → SVO May 3, 04:30 UTCMay 3, 21:14 UTC16h 45m
2026-05-02 CES2075 PKX → SVO May 2, 04:30 UTCMay 2, 11:00 UTC6h 30m
2026-05-01 CES2075 PKX → SVO May 1, 04:25 UTCMay 1, 11:10 UTC6h 45m
2026-04-30 CES6670 SZX → PKX Apr 30, 14:00 UTCApr 30, 14:10 UTC10m
2026-04-30 CES6667 PKX → SZX Apr 30, 11:45 UTCApr 30, 12:00 UTC15m
2026-04-29 CES2075 PKX → SVO Apr 29, 11:35 UTCApr 29, 11:55 UTC20m
2026-04-29 CES2075 PKX → SVO Apr 29, 07:35 UTCApr 29, 10:50 UTC3h 16m
2026-04-29 CES2075 PKX → SVO Apr 29, 04:25 UTCApr 29, 04:34 UTC10m
2026-04-27 CES5110 PEK → SHA Apr 27, 04:10 UTCApr 27, 04:20 UTC10m
2026-04-26 CES5350 SZX → SHA Apr 26, 10:50 UTCApr 26, 11:05 UTC15m
2026-04-26 CES5341 SHA → SZX Apr 26, 08:50 UTCApr 26, 09:00 UTC10m
2026-04-26 CES5336 SZX → SHA Apr 26, 02:45 UTCApr 26, 02:55 UTC10m
2026-04-25 CES5353 SHA → SZX Apr 25, 13:10 UTCApr 25, 13:35 UTC25m
2026-04-23 CSH9332 SZX → SHA Apr 23, 06:55 UTCApr 23, 07:10 UTC15m
2026-04-23 CSH9331 SHA → SZX Apr 23, 02:15 UTCApr 23, 02:30 UTC15m
2026-04-23 CSH9331 SHA → SZX Apr 23, 01:30 UTCApr 23, 01:40 UTC10m
2026-04-22 CSH9332 SZX → SHA Apr 22, 05:50 UTCApr 22, 06:05 UTC15m
2026-04-22 CSH9331 SHA → SZX Apr 22, 03:10 UTCApr 22, 03:30 UTC20m
2026-04-20 CSH9254 HAK → SHA Apr 20, 07:10 UTCApr 20, 14:50 UTC7h 40m
2026-04-20 CSH9308 CAN → SHA Apr 20, 06:15 UTCApr 20, 06:25 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-6506 page for operator, model, and routing details .

Mode-S 7804B1 frequently asked

What is Mode-S code 7804B1?
7804B1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6506.
Where is Mode-S 7804B1 registered?
Mode-S code 7804B1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7804B1 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 7804B1, octal 36002261, decimal 7,865,521.
What flights does 7804B1 operate?
Mode-S 7804B1 has broadcast 20 distinct callsigns, including CES2075, CES5348, CES5339, CSH9331, CSH9332.