Apparatus

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sensors Mode-S transponder

7804BB

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5398 · BOEING 737-800

Hex
7804BB
Octal
36002273
Decimal
7,865,531
Country
CN
Tail
B-5398
Type
B738
Broadcasting now · callsign CCA1655 · 35,100 ft
Flights observed
88
Distinct callsigns
20
Country
CN
Last broadcast
25d ago

Current position

7804BB is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7804BB 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
CCA433 Air China 8 2026-07-26
CCA434 Air China 6 2026-07-26
CCA129 - 6 2026-07-08
CCA130 - 5 2026-07-08
CCA4365 - 4 2026-06-30
CCA4372 - 3 2026-07-16
CCA4330 - 3 2026-06-30
CCA2678 - 3 2026-07-15
CCA4329 - 2 2026-06-29
CCA420 Air China 2 2026-07-25
CCA419 Air China 2 2026-07-25
CCA4142 - 2 2026-07-09
CCA1689 Air China 2 2026-06-22
CCA1418 - 2 2026-07-04
CCA1417 - 2 2026-07-04
CCA1283 - 2 2026-06-11
CCA9735 - 1 2026-07-07
CCA4368 - 1 2026-07-16
CCA4367 - 1 2026-07-16
CCA4366 - 1 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CCA434 NRT → CKG Jul 26, 10:40 UTCJul 26, 12:20 UTC1h 40m
2026-07-26 CCA433 CKG → NRT Jul 26, 07:15 UTCJul 26, 09:10 UTC1h 55m
2026-07-25 CCA420 HKG → CKG Jul 25, 07:10 UTCJul 25, 07:25 UTC15m
2026-07-25 CCA419 CKG → HKG Jul 25, 05:05 UTCJul 25, 05:35 UTC30m
2026-07-24 CCA4008 HET → CKG Jul 24, 23:15 UTCJul 24, 23:40 UTC25m
2026-07-24 CCA4007 CKG → HET Jul 24, 15:25 UTCJul 24, 15:50 UTC25m
2026-07-24 CCA4020 - Jul 24, 11:05 UTCJul 24, 11:15 UTC10m
2026-07-24 CCA4019 - Jul 24, 06:30 UTCJul 24, 06:55 UTC25m
2026-07-19 CCA4014 YCU → CKG Jul 19, 14:15 UTCJul 20, 06:50 UTC16h 35m
2026-07-19 CCA4345 CKG → SZX Jul 19, 12:00 UTCJul 19, 12:10 UTC10m
2026-07-16 CCA4368 - Jul 16, 23:29 UTCJul 16, 23:44 UTC15m
2026-07-16 CCA4367 - Jul 16, 16:15 UTCJul 16, 16:25 UTC10m
2026-07-16 CCA4372 - Jul 16, 04:00 UTCJul 16, 04:10 UTC10m
2026-07-15 CCA2678 - Jul 15, 04:25 UTCJul 15, 04:35 UTC10m
2026-07-12 CCA434 - Jul 12, 10:50 UTCJul 12, 12:25 UTC1h 35m
2026-07-12 CCA433 - Jul 12, 07:40 UTCJul 12, 09:30 UTC1h 50m
2026-07-11 CCA420 - Jul 11, 06:55 UTCJul 11, 07:15 UTC20m
2026-07-11 CCA419 - Jul 11, 04:50 UTCJul 11, 05:20 UTC30m
2026-07-09 CCA4142 - Jul 9, 10:40 UTCJul 9, 11:00 UTC20m
2026-07-08 CCA1873 - Jul 8, 07:45 UTCJul 8, 07:55 UTC10m
2026-07-08 CCA130 - Jul 8, 03:50 UTCJul 8, 04:40 UTC50m
2026-07-08 CCA129 - Jul 8, 01:50 UTCJul 8, 02:45 UTC55m
2026-07-08 CCA129 - Jul 8, 00:50 UTCJul 8, 01:00 UTC10m
2026-07-07 CCA9735 - Jul 7, 15:45 UTCJul 7, 16:00 UTC15m
2026-07-07 CCA4147 - Jul 7, 12:40 UTCJul 7, 13:00 UTC20m
2026-07-05 CCA434 - Jul 5, 10:45 UTCJul 5, 13:00 UTC2h 15m
2026-07-05 CCA433 - Jul 5, 07:15 UTCJul 5, 09:05 UTC1h 50m
2026-07-04 CCA433 - Jul 4, 13:25 UTCJul 5, 09:05 UTC19h 40m
2026-07-04 CCA1418 - Jul 4, 11:00 UTCJul 4, 11:10 UTC10m
2026-07-04 CCA1417 - Jul 4, 04:45 UTCJul 4, 05:10 UTC25m
2026-07-03 CCA434 - Jul 3, 10:45 UTCJul 3, 12:25 UTC1h 40m
2026-07-03 CCA433 - Jul 3, 07:20 UTCJul 3, 08:55 UTC1h 35m
2026-07-02 CCA4346 - Jul 2, 14:40 UTCJul 2, 14:50 UTC10m
2026-07-02 - - Jul 2, 12:45 UTCJul 2, 12:55 UTC10m
2026-06-30 CCA2812 - Jun 30, 14:40 UTCJun 30, 14:50 UTC10m
2026-06-30 CCA4365 - Jun 30, 07:15 UTCJun 30, 07:30 UTC15m
2026-06-30 CCA4330 - Jun 30, 00:09 UTCJun 30, 00:20 UTC10m
2026-06-29 CCA4365 - Jun 29, 07:20 UTCJun 29, 07:30 UTC10m
2026-06-29 CCA4329 - Jun 29, 05:30 UTCJun 29, 05:40 UTC10m
2026-06-29 CCA4330 - Jun 29, 00:20 UTCJun 29, 00:29 UTC10m
2026-06-28 CCA4366 - Jun 28, 16:05 UTCJun 28, 16:14 UTC10m
2026-06-28 CCA4365 - Jun 28, 11:25 UTCJun 28, 11:35 UTC10m
2026-06-28 CCA4330 - Jun 28, 03:40 UTCJun 28, 03:50 UTC10m
2026-06-27 CCA4365 - Jun 27, 07:24 UTCJun 27, 07:34 UTC10m
2026-06-27 CCA4329 - Jun 27, 05:29 UTCJun 27, 05:39 UTC10m
2026-06-26 CCA4372 - Jun 26, 10:35 UTCJun 26, 10:44 UTC10m
2026-06-25 CCA2678 - Jun 25, 03:40 UTCJun 25, 03:54 UTC15m
2026-06-24 CCA434 - Jun 24, 10:39 UTCJun 24, 12:20 UTC1h 40m
2026-06-24 CCA433 - Jun 24, 07:20 UTCJun 24, 09:00 UTC1h 40m
2026-06-23 CCA433 - Jun 23, 10:59 UTCJun 24, 09:00 UTC22h 0m

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-5398 page for operator, model, and routing details .

Mode-S 7804BB frequently asked

What is Mode-S code 7804BB?
7804BB is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5398.
Where is Mode-S 7804BB registered?
Mode-S code 7804BB is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7804BB broadcasting right now?
Yes. Mode-S 7804BB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7804BB, octal 36002273, decimal 7,865,531.
What flights does 7804BB operate?
Mode-S 7804BB has broadcast 20 distinct callsigns, including CCA433, CCA434, CCA129, CCA130, CCA4365.