Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7BD01B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-2851 · BOEING 757-200

Hex
7BD01B
Octal
36750033
Decimal
8,114,203
Country
CN
Tail
B-2851
Type
B752
No current signal · last broadcast 14h ago
Flights observed
82
Distinct callsigns
4
Country
CN
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 7BD01B.

Country allocation

The ICAO 24-bit address 7BD01B 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 4 distinct

Callsign Airline Flights Last seen
HYT9053 - 26 2026-07-18
HYT9054 - 22 2026-07-18
HYT9051 - 18 2026-06-22
HYT9052 - 16 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 HYT9054 - Jul 18, 19:15 UTCJul 18, 20:55 UTC1h 40m
2026-07-18 HYT9053 - Jul 18, 15:55 UTCJul 18, 17:50 UTC1h 55m
2026-07-16 HYT9054 - Jul 16, 19:25 UTCJul 16, 21:05 UTC1h 40m
2026-07-16 HYT9053 - Jul 16, 16:05 UTCJul 16, 17:49 UTC1h 45m
2026-06-25 HYT9054 - Jun 25, 19:09 UTCJun 25, 20:30 UTC1h 20m
2026-06-25 HYT9053 - Jun 25, 15:24 UTCJun 25, 17:20 UTC1h 55m
2026-06-24 HYT9053 - Jun 24, 21:00 UTCJun 25, 17:20 UTC20h 20m
2026-06-24 HYT9054 - Jun 24, 19:20 UTCJun 25, 17:20 UTC22h 0m
2026-06-24 HYT9053 - Jun 24, 15:29 UTCJun 24, 17:20 UTC1h 50m
2026-06-22 HYT9052 - Jun 22, 03:19 UTCJun 22, 04:00 UTC40m
2026-06-22 HYT9051 - Jun 22, 00:44 UTCJun 22, 01:19 UTC35m
2026-06-19 HYT9054 - Jun 19, 19:25 UTCJun 19, 21:39 UTC2h 15m
2026-06-19 HYT9053 - Jun 19, 16:04 UTCJun 19, 17:24 UTC1h 20m
2026-06-17 HYT9054 - Jun 17, 19:10 UTCJun 17, 20:10 UTC1h 0m
2026-06-17 HYT9053 - Jun 17, 16:00 UTCJun 17, 17:15 UTC1h 15m
2026-06-16 HYT9052 - Jun 16, 03:50 UTCJun 16, 04:30 UTC40m
2026-06-16 HYT9051 - Jun 16, 01:04 UTCJun 16, 01:50 UTC45m
2026-06-15 HYT9054 - Jun 15, 19:30 UTCJun 15, 20:45 UTC1h 15m
2026-06-15 HYT9053 - Jun 15, 15:59 UTCJun 15, 17:20 UTC1h 20m
2026-06-13 HYT9054 - Jun 13, 19:35 UTCJun 13, 20:50 UTC1h 15m
2026-06-13 HYT9053 - Jun 13, 15:30 UTCJun 13, 17:50 UTC2h 20m
2026-06-12 HYT9053 - Jun 12, 18:50 UTCJun 13, 17:50 UTC22h 59m
2026-06-12 HYT9054 - Jun 12, 18:40 UTCJun 13, 16:45 UTC22h 4m
2026-06-12 HYT9053 - Jun 12, 15:55 UTCJun 12, 17:10 UTC1h 15m
2026-06-11 HYT9054 - Jun 11, 20:30 UTCJun 11, 22:10 UTC1h 40m
2026-06-11 HYT9053 - Jun 11, 16:00 UTCJun 11, 17:25 UTC1h 25m
2026-06-09 HYT9052 KUL → HGH Jun 9, 03:30 UTCJun 9, 04:00 UTC30m
2026-06-09 HYT9051 - Jun 9, 01:10 UTCJun 9, 01:40 UTC30m
2026-06-08 HYT9054 - Jun 8, 19:35 UTCJun 8, 21:00 UTC1h 25m
2026-06-08 HYT9053 - Jun 8, 15:45 UTCJun 8, 17:25 UTC1h 40m
2026-06-08 HYT9052 KUL → HGH Jun 8, 03:50 UTCJun 8, 04:15 UTC25m
2026-06-08 HYT9052 KUL → HGH Jun 8, 03:25 UTCJun 8, 03:40 UTC15m
2026-06-08 HYT9051 - Jun 8, 01:05 UTCJun 8, 01:35 UTC30m
2026-06-05 HYT9054 - Jun 5, 18:45 UTCJun 5, 19:15 UTC30m
2026-06-05 HYT9053 ICN → MNL Jun 5, 03:45 UTCJun 5, 17:05 UTC13h 20m
2026-06-05 HYT9051 - Jun 5, 01:05 UTCJun 5, 01:35 UTC30m
2026-06-04 HYT9054 - Jun 4, 19:10 UTCJun 4, 21:00 UTC1h 50m
2026-06-04 HYT9053 ICN → MNL Jun 4, 03:25 UTCJun 4, 17:25 UTC14h 0m
2026-06-04 HYT9051 - Jun 4, 01:15 UTCJun 4, 01:45 UTC30m
2026-06-01 HYT9052 KUL → HGH Jun 1, 06:30 UTCJun 1, 06:50 UTC20m
2026-06-01 HYT9052 KUL → HGH Jun 1, 04:50 UTCJun 1, 05:15 UTC25m
2026-06-01 HYT9051 - Jun 1, 01:15 UTCJun 1, 01:45 UTC30m
2026-05-30 HYT9054 - May 30, 20:40 UTCMay 30, 21:05 UTC25m
2026-05-30 HYT9054 - May 30, 19:10 UTCMay 30, 20:10 UTC1h 0m
2026-05-30 HYT9053 - May 30, 15:55 UTCMay 30, 17:15 UTC1h 20m
2026-05-29 HYT9052 KUL → HGH May 29, 04:45 UTCMay 29, 05:10 UTC25m
2026-05-29 HYT9051 - May 29, 01:10 UTCMay 29, 01:35 UTC25m
2026-05-28 HYT9054 - May 28, 19:05 UTCMay 28, 20:25 UTC1h 20m
2026-05-28 HYT9053 ICN → MNL May 28, 03:50 UTCMay 28, 17:25 UTC13h 35m
2026-05-28 HYT9051 - May 28, 01:05 UTCMay 28, 01:35 UTC30m

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-2851 page for operator, model, and routing details .

Mode-S 7BD01B frequently asked

What is Mode-S code 7BD01B?
7BD01B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-2851.
Where is Mode-S 7BD01B registered?
Mode-S code 7BD01B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7BD01B broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7BD01B, octal 36750033, decimal 8,114,203.
What flights does 7BD01B operate?
Mode-S 7BD01B has broadcast 4 distinct callsigns, including HYT9053, HYT9054, HYT9051, HYT9052.