Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7BB0BF

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-2697 · BOEING 737-800

Hex
7BB0BF
Octal
36730277
Decimal
8,106,175
Country
CN
Tail
B-2697
Type
B738
No current signal · last broadcast 5h ago
Flights observed
86
Distinct callsigns
20
Country
CN
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 7BB0BF.

Country allocation

The ICAO 24-bit address 7BB0BF 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
CSN6336 - 13 2026-07-18
CSN6478 - 10 2026-07-04
CSN6335 - 10 2026-07-18
CSN6477 - 8 2026-07-01
CSN6390 - 8 2026-07-04
CSN6389 - 8 2026-07-03
CSN3976 - 4 2026-06-24
CSN3975 - 4 2026-06-24
CSN8569 - 3 2026-07-15
CSN6532 - 2 2026-07-17
CSN3981 - 2 2026-06-18
CSN3973 - 2 2026-06-20
CSN8685 China Southern Airlines 1 2026-05-01
CSN6575 - 1 2026-07-10
CSN6531 China Southern Airlines 1 2026-06-12
CSN6490 China Southern Airlines 1 2026-05-06
CSN6489 China Southern Airlines 1 2026-05-06
CSN6355 China Southern Airlines 1 2026-06-14
CSN6010 - 1 2026-07-08
CSN6009 - 1 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CSN6336 - Jul 18, 03:25 UTCJul 18, 03:35 UTC10m
2026-07-18 CSN6335 - Jul 18, 01:10 UTCJul 18, 01:39 UTC30m
2026-07-17 CSN6532 - Jul 17, 01:45 UTCJul 17, 01:55 UTC10m
2026-07-15 CSN8569 - Jul 15, 09:15 UTCJul 15, 12:00 UTC2h 45m
2026-07-15 CSN6336 - Jul 15, 05:20 UTCJul 15, 05:30 UTC10m
2026-07-15 CSN6335 - Jul 15, 01:25 UTCJul 15, 02:30 UTC1h 5m
2026-07-10 CSN6575 - Jul 10, 03:45 UTCJul 10, 03:55 UTC10m
2026-07-08 CSN6010 - Jul 8, 12:30 UTCJul 9, 02:30 UTC14h 0m
2026-07-08 CSN6009 - Jul 8, 10:40 UTCJul 8, 11:10 UTC30m
2026-07-06 CSN3445 CGO → ZHA Jul 6, 07:55 UTCJul 6, 08:10 UTC15m
2026-07-04 CSN6478 - Jul 4, 07:05 UTCJul 4, 07:20 UTC15m
2026-07-04 CSN6390 - Jul 4, 04:30 UTCJul 4, 04:50 UTC20m
2026-07-03 CSN6389 - Jul 3, 10:45 UTCJul 3, 10:55 UTC10m
2026-07-01 CSN6389 - Jul 1, 10:25 UTCJul 1, 10:35 UTC10m
2026-07-01 CSN6477 - Jul 1, 08:20 UTCJul 1, 08:40 UTC20m
2026-07-01 CSN6336 - Jul 1, 03:15 UTCJul 1, 03:30 UTC15m
2026-07-01 CSN6335 - Jul 1, 01:10 UTCJul 1, 01:30 UTC20m
2026-06-29 CSN6478 - Jun 29, 05:59 UTCJun 29, 06:09 UTC10m
2026-06-29 CSN6390 - Jun 29, 03:39 UTCJun 29, 04:00 UTC20m
2026-06-28 CSN6389 - Jun 28, 10:39 UTCJun 28, 10:50 UTC10m
2026-06-28 CSN6477 - Jun 28, 09:05 UTCJun 28, 09:15 UTC10m
2026-06-28 CSN6336 - Jun 28, 03:29 UTCJun 28, 03:40 UTC10m
2026-06-28 CSN6335 - Jun 28, 01:44 UTCJun 28, 01:55 UTC10m
2026-06-27 - - Jun 27, 04:29 UTCJun 27, 04:39 UTC10m
2026-06-24 CSN3976 - Jun 24, 04:55 UTCJun 24, 05:05 UTC10m
2026-06-24 CSN3975 - Jun 24, 03:00 UTCJun 24, 03:19 UTC20m
2026-06-23 CSN6478 - Jun 23, 06:09 UTCJun 23, 06:24 UTC15m
2026-06-23 CSN6390 - Jun 23, 03:54 UTCJun 23, 04:09 UTC15m
2026-06-22 CSN6389 - Jun 22, 10:34 UTCJun 22, 10:44 UTC10m
2026-06-22 CSN6477 - Jun 22, 08:25 UTCJun 22, 08:44 UTC20m
2026-06-22 CSN6336 - Jun 22, 03:19 UTCJun 22, 03:35 UTC15m
2026-06-20 CSN3973 - Jun 20, 12:39 UTCJun 20, 12:54 UTC15m
2026-06-19 CSN6336 - Jun 19, 04:04 UTCJun 19, 04:19 UTC15m
2026-06-19 CSN6335 - Jun 19, 01:54 UTCJun 19, 02:24 UTC30m
2026-06-18 CSN3981 - Jun 18, 03:10 UTCJun 18, 03:30 UTC20m
2026-06-14 CSN6355 CGO → HAK Jun 14, 02:30 UTCJun 14, 02:45 UTC15m
2026-06-13 CSN6532 - Jun 13, 01:40 UTCJun 13, 01:50 UTC10m
2026-06-12 CSN6531 CGO → SZX Jun 12, 14:20 UTCJun 12, 14:40 UTC20m
2026-06-11 CSN6478 SZX → CGO Jun 11, 06:05 UTCJun 11, 06:15 UTC10m
2026-06-11 CSN6390 CGO → SZX Jun 11, 03:40 UTCJun 11, 03:55 UTC15m
2026-06-10 CSN6389 SZX → CGO Jun 10, 10:20 UTCJun 10, 10:30 UTC10m
2026-06-10 CSN6477 CGO → SZX Jun 10, 08:25 UTCJun 10, 08:45 UTC20m
2026-06-08 CSN3976 SZX → CGO Jun 8, 04:45 UTCJun 8, 05:00 UTC15m
2026-06-08 CSN3975 CGO → SZX Jun 8, 02:55 UTCJun 8, 03:10 UTC15m
2026-06-06 CSN6478 SZX → CGO Jun 6, 09:30 UTCJun 6, 09:45 UTC15m
2026-06-05 CSN6477 CGO → SZX Jun 5, 08:55 UTCJun 5, 09:20 UTC25m
2026-06-05 CSN6336 SZX → CGO Jun 5, 03:25 UTCJun 5, 03:35 UTC10m
2026-06-04 CSN3271 SZX → CGO Jun 4, 09:30 UTCJun 4, 09:40 UTC10m
2026-06-04 CSN6390 CGO → SZX Jun 4, 06:25 UTCJun 4, 06:40 UTC15m
2026-06-03 CSN6389 SZX → CGO Jun 3, 10:20 UTCJun 3, 10:30 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-2697 page for operator, model, and routing details .

Mode-S 7BB0BF frequently asked

What is Mode-S code 7BB0BF?
7BB0BF is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-2697.
Where is Mode-S 7BB0BF registered?
Mode-S code 7BB0BF is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7BB0BF broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7BB0BF, octal 36730277, decimal 8,106,175.
What flights does 7BB0BF operate?
Mode-S 7BB0BF has broadcast 20 distinct callsigns, including CSN6336, CSN6478, CSN6335, CSN6477, CSN6390.