sensors Mode-S transponder

78071B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-2082 · BOEING 777-200LR

Hex
78071B
Octal
36003433
Decimal
7,866,139
Country
CN
Tail
B-2082
Type
B77L
Broadcasting now · callsign HLF9899 · 23,500 ft
Flights observed
105
Distinct callsigns
6
Country
CN
Last broadcast
12h ago

Current position

78071B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 78071B 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 6 distinct

Callsign Airline Flights Last seen
HLF9852 - 31 2026-05-28
HLF9858 Hapagfly 19 2026-05-26
HLF9851 - 18 2026-05-28
HLF9857 - 14 2026-04-30
HLF9899 - 12 2026-05-26
HLF8832 - 11 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 HLF8832 - May 29, 11:10 UTCMay 29, 17:35 UTC6h 25m
2026-05-28 HLF9851 - May 28, 11:55 UTCMay 29, 06:25 UTC18h 30m
2026-05-28 HLF9851 - May 28, 09:35 UTCMay 29, 06:25 UTC20h 50m
2026-05-28 HLF9852 - May 28, 06:50 UTCMay 29, 06:25 UTC23h 35m
2026-05-28 HLF9852 - May 28, 06:05 UTCMay 29, 01:50 UTC19h 45m
2026-05-27 HLF9851 - May 27, 00:49 UTCMay 27, 20:05 UTC19h 16m
2026-05-26 HLF9858 NRT → NRT May 26, 22:50 UTCMay 27, 20:05 UTC21h 16m
2026-05-26 HLF9899 - May 26, 09:40 UTCMay 26, 20:00 UTC10h 20m
2026-05-25 HLF8832 - May 25, 14:25 UTCMay 25, 20:24 UTC5h 59m
2026-05-24 HLF9852 BRU → BRU May 24, 17:05 UTCMay 25, 11:25 UTC18h 20m
2026-05-23 HLF9858 NRT → NRT May 23, 19:20 UTCMay 24, 13:55 UTC18h 35m
2026-05-23 HLF9899 - May 23, 09:30 UTCMay 23, 16:45 UTC7h 15m
2026-05-22 HLF9899 - May 22, 17:05 UTCMay 23, 16:45 UTC23h 39m
2026-05-22 HLF8832 - May 22, 12:50 UTCMay 23, 12:45 UTC23h 54m
2026-05-22 HLF8832 - May 22, 11:15 UTCMay 23, 10:15 UTC22h 59m
2026-05-22 HLF9851 - May 22, 00:00 UTCMay 22, 06:40 UTC6h 40m
2026-05-21 HLF9852 - May 21, 01:55 UTCMay 22, 00:25 UTC22h 30m
2026-05-20 HLF9852 - May 20, 20:05 UTCMay 21, 02:20 UTC6h 15m
2026-05-19 HLF9851 - May 19, 22:50 UTCMay 20, 17:10 UTC18h 21m
2026-05-19 HLF9858 NRT → NRT May 19, 22:35 UTCMay 20, 17:10 UTC18h 36m
2026-05-19 HLF9899 - May 19, 09:05 UTCMay 19, 19:25 UTC10h 20m
2026-05-18 HLF8832 - May 18, 14:40 UTCMay 18, 21:00 UTC6h 19m
2026-05-17 HLF9852 - May 17, 17:30 UTCMay 18, 11:35 UTC18h 5m
2026-05-16 HLF9858 NRT → NRT May 16, 19:55 UTCMay 17, 15:05 UTC19h 10m
2026-05-16 HLF9899 - May 16, 10:16 UTCMay 16, 17:25 UTC7h 10m
2026-05-15 HLF9899 - May 15, 14:50 UTCMay 16, 13:31 UTC22h 41m
2026-05-15 HLF8832 - May 15, 12:50 UTCMay 16, 11:05 UTC22h 15m
2026-05-15 HLF8832 - May 15, 12:15 UTCMay 16, 10:46 UTC22h 30m
2026-05-15 HLF9851 - May 15, 08:45 UTCMay 15, 09:10 UTC25m
2026-05-14 HLF9852 - May 14, 08:50 UTCMay 15, 04:15 UTC19h 25m
2026-05-14 HLF9852 - May 14, 07:10 UTCMay 15, 04:15 UTC21h 5m
2026-05-13 HLF9851 - May 13, 21:30 UTCMay 14, 04:15 UTC6h 45m
2026-05-13 HLF9851 - May 13, 00:50 UTCMay 13, 23:20 UTC22h 30m
2026-05-12 HLF9858 NRT → NRT May 12, 22:50 UTCMay 13, 21:45 UTC22h 55m
2026-05-12 HLF9899 - May 12, 12:30 UTCMay 12, 19:45 UTC7h 15m
2026-05-11 HLF9899 - May 11, 20:10 UTCMay 12, 18:45 UTC22h 35m
2026-05-11 HLF9899 - May 11, 16:50 UTCMay 12, 15:50 UTC23h 1m
2026-05-11 HLF8832 - May 11, 14:50 UTCMay 12, 13:20 UTC22h 31m
2026-05-11 HLF8832 - May 11, 14:35 UTCMay 12, 12:45 UTC22h 11m
2026-05-10 HLF9852 BRU → BRU May 10, 17:20 UTCMay 11, 11:35 UTC18h 15m
2026-05-09 HLF9858 NRT → NRT May 9, 19:35 UTCMay 9, 22:10 UTC2h 35m
2026-05-09 HLF9899 - May 9, 09:25 UTCMay 9, 12:45 UTC3h 20m
2026-05-09 HLF9899 - May 9, 05:45 UTCMay 9, 06:00 UTC15m
2026-05-08 HLF8832 - May 8, 11:25 UTCMay 8, 17:25 UTC6h 0m
2026-05-08 HLF9851 - May 8, 02:14 UTCMay 8, 07:39 UTC5h 25m
2026-05-06 HLF9852 - May 6, 20:00 UTCMay 6, 23:40 UTC3h 40m
2026-05-05 HLF9858 NRT → NRT May 5, 22:50 UTCMay 6, 17:05 UTC18h 15m
2026-05-05 HLF9858 NRT → NRT May 5, 22:35 UTCMay 6, 17:05 UTC18h 30m
2026-05-05 HLF9899 - May 5, 08:45 UTCMay 5, 19:30 UTC10h 45m
2026-05-04 HLF8832 - May 4, 14:55 UTCMay 4, 17:00 UTC2h 5m

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-2082 page for operator, model, and routing details .

Mode-S 78071B frequently asked

What is Mode-S code 78071B?
78071B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-2082.
Where is Mode-S 78071B registered?
Mode-S code 78071B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78071B broadcasting right now?
Yes. Mode-S 78071B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78071B, octal 36003433, decimal 7,866,139.
What flights does 78071B operate?
Mode-S 78071B has broadcast 6 distinct callsigns, including HLF9852, HLF9858, HLF9851, HLF9857, HLF9899.