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sensors Mode-S transponder

7BD015

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-2845 · BOEING 757-200

Hex
7BD015
Octal
36750025
Decimal
8,114,197
Country
CN
Tail
B-2845
Type
B752
No current signal · last broadcast 7h ago
Flights observed
87
Distinct callsigns
20
Country
CN
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 7BD015.

Country allocation

The ICAO 24-bit address 7BD015 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
CSS274 - 5 2026-07-11
CSS273 - 5 2026-07-11
CSS6814 - 4 2026-06-29
CSS7671 - 3 2026-06-17
CSS7240 - 3 2026-07-17
CSS7119 SF Airlines 3 2026-06-25
CSS6813 - 3 2026-06-21
CSS6811 - 3 2026-07-13
CSS326 - 3 2026-06-20
CSS313 - 3 2026-07-06
CSS280 SF Airlines 3 2026-05-12
CSS279 SF Airlines 3 2026-05-12
CSS142 SF Airlines 3 2026-05-12
CSS7125 - 2 2026-06-27
CSS7105 - 2 2026-05-25
CSS6924 SF Airlines 2 2026-05-25
CSS6923 SF Airlines 2 2026-05-26
CSS6840 SF Airlines 2 2026-05-13
CSS6828 SF Airlines 2 2026-06-19
CSS6819 - 2 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CSS7240 - Jul 17, 20:55 UTCJul 17, 21:10 UTC15m
2026-07-16 CSS7240 - Jul 16, 20:39 UTCJul 16, 20:49 UTC10m
2026-07-15 CSS7240 - Jul 15, 20:40 UTCJul 15, 20:50 UTC10m
2026-07-15 CSS272 - Jul 15, 06:45 UTCJul 15, 07:40 UTC55m
2026-07-15 CSS271 - Jul 15, 04:15 UTCJul 15, 05:10 UTC55m
2026-07-14 CSS7344 - Jul 14, 21:45 UTCJul 14, 21:55 UTC10m
2026-07-14 CSS272 - Jul 14, 07:00 UTCJul 14, 07:50 UTC50m
2026-07-13 CSS271 - Jul 13, 21:45 UTCJul 14, 05:30 UTC7h 45m
2026-07-13 CSS6811 - Jul 13, 16:50 UTCJul 13, 17:00 UTC10m
2026-07-12 CSS6804 - Jul 12, 21:10 UTCJul 12, 21:20 UTC10m
2026-07-11 CSS274 - Jul 11, 03:01 UTCJul 11, 04:20 UTC1h 20m
2026-07-11 CSS273 - Jul 11, 00:15 UTCJul 11, 01:50 UTC1h 35m
2026-07-06 CSS6936 - Jul 6, 17:30 UTCJul 6, 17:40 UTC10m
2026-07-06 CSS314 - Jul 6, 11:55 UTCJul 6, 12:45 UTC50m
2026-07-06 CSS313 - Jul 6, 08:55 UTCJul 6, 09:45 UTC50m
2026-07-06 CSS313 - Jul 6, 07:30 UTCJul 6, 07:45 UTC15m
2026-07-05 CSS7205 - Jul 5, 19:40 UTCJul 5, 20:20 UTC40m
2026-07-04 CSS6827 - Jul 4, 19:20 UTCJul 4, 19:30 UTC10m
2026-06-29 CSS6814 - Jun 29, 00:24 UTCJun 29, 00:34 UTC10m
2026-06-28 CSS6814 - Jun 28, 21:40 UTCJun 28, 21:59 UTC20m
2026-06-27 CSS7125 - Jun 27, 16:39 UTCJun 27, 16:49 UTC10m
2026-06-26 CSS7125 - Jun 26, 16:49 UTCJun 26, 17:04 UTC15m
2026-06-25 CSS7119 PEK → HGH Jun 25, 16:50 UTCJun 25, 17:05 UTC15m
2026-06-22 CSS7119 PEK → HGH Jun 22, 17:20 UTCJun 22, 17:34 UTC15m
2026-06-21 CSS6813 - Jun 21, 18:29 UTCJun 21, 18:39 UTC10m
2026-06-20 CSS326 - Jun 20, 21:25 UTCJun 20, 21:40 UTC15m
2026-06-20 CSS326 - Jun 20, 19:44 UTCJun 20, 20:14 UTC30m
2026-06-20 CSS325 - Jun 20, 16:34 UTCJun 20, 18:24 UTC1h 50m
2026-06-19 CSS326 - Jun 19, 20:34 UTCJun 19, 22:24 UTC1h 50m
2026-06-19 CSS325 - Jun 19, 16:55 UTCJun 19, 18:39 UTC1h 45m
2026-06-19 CSS6828 PVG → SZX Jun 19, 01:59 UTCJun 19, 02:29 UTC30m
2026-06-18 CSS7249 - Jun 18, 16:40 UTCJun 18, 17:15 UTC35m
2026-06-17 CSS7671 - Jun 17, 21:10 UTCJun 17, 22:00 UTC50m
2026-06-16 CSS6819 - Jun 16, 22:25 UTCJun 16, 22:35 UTC10m
2026-06-16 CSS7671 - Jun 16, 20:25 UTCJun 16, 20:40 UTC15m
2026-06-15 CSS6819 - Jun 15, 22:40 UTCJun 15, 22:49 UTC10m
2026-06-15 CSS7671 - Jun 15, 20:59 UTCJun 15, 21:25 UTC25m
2026-06-14 CSS6833 - Jun 14, 14:00 UTCJun 14, 14:10 UTC10m
2026-06-13 CSS6811 - Jun 13, 17:00 UTCJun 13, 17:10 UTC10m
2026-06-12 CSS6812 PEK → SZX Jun 12, 22:15 UTCJun 12, 22:30 UTC15m
2026-06-11 CSS6811 SZX → PEK Jun 11, 16:55 UTCJun 11, 17:10 UTC15m
2026-06-10 CSS6814 PEK → SZX Jun 10, 22:45 UTCJun 10, 22:55 UTC10m
2026-06-10 CSS6813 SZX → PEK Jun 10, 21:00 UTCJun 10, 21:10 UTC10m
2026-06-10 CSS6813 SZX → PEK Jun 10, 18:30 UTCJun 10, 18:45 UTC15m
2026-06-09 CSS6806 EHU → SZX Jun 9, 21:00 UTCJun 9, 21:20 UTC20m
2026-06-01 CSS6803 SZX → EHU Jun 1, 17:05 UTCJun 1, 17:15 UTC10m
2026-06-01 CSS314 - Jun 1, 11:35 UTCJun 1, 12:10 UTC35m
2026-06-01 CSS313 SZX → BKK Jun 1, 06:55 UTCJun 1, 09:05 UTC2h 10m
2026-05-31 CSS6836 HGH → SZX May 31, 21:55 UTCMay 31, 22:15 UTC20m
2026-05-31 CSS7224 SZX → HGH May 31, 17:35 UTCMay 31, 17:45 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-2845 page for operator, model, and routing details .

Mode-S 7BD015 frequently asked

What is Mode-S code 7BD015?
7BD015 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-2845.
Where is Mode-S 7BD015 registered?
Mode-S code 7BD015 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7BD015 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 7BD015, octal 36750025, decimal 8,114,197.
What flights does 7BD015 operate?
Mode-S 7BD015 has broadcast 20 distinct callsigns, including CSS274, CSS273, CSS6814, CSS7671, CSS7240.