Apparatus

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sensors Mode-S transponder

789277

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-KJD · BOEING 737-800

Hex
789277
Octal
36111167
Decimal
7,901,815
Country
CN
Tail
B-KJD
Type
B738
No current signal · last broadcast Jul 26, 21:40 UTC
Flights observed
336
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 21:40 UTC

Last known position

Most recent position reported by Mode-S 789277.

Country allocation

The ICAO 24-bit address 789277 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
HGB309 Greater Bay Airlines 35 2026-07-26
HGB341 Greater Bay Airlines 33 2026-07-24
HGB308 Greater Bay Airlines 21 2026-07-26
HGB340 Greater Bay Airlines 20 2026-07-24
HGB323 Greater Bay Airlines 17 2026-07-22
HGB703 - 14 2026-07-03
HGB322 Greater Bay Airlines 14 2026-07-18
HGB839 - 12 2026-07-23
HGB838 - 11 2026-07-23
HGB705 Greater Bay Airlines 9 2026-07-24
HGB321 Greater Bay Airlines 9 2026-07-25
HGB702 - 8 2026-07-03
HGB383 Greater Bay Airlines 8 2026-07-17
HGB320 Greater Bay Airlines 8 2026-07-25
HGB8236 - 7 2026-07-03
HGB704 Greater Bay Airlines 7 2026-07-24
HGB2387 Greater Bay Airlines 7 2026-06-19
HGB337 Greater Bay Airlines 6 2026-07-21
HGB336 - 6 2026-07-21
HGB873 - 5 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 HGB539 ENH → HKG Jul 26, 20:40 UTCJul 26, 21:35 UTC55m
2026-07-26 HGB538 HKG → ENH Jul 26, 16:15 UTCJul 26, 16:30 UTC15m
2026-07-26 HGB309 FUK → HKG Jul 26, 14:10 UTCJul 26, 14:25 UTC15m
2026-07-26 HGB309 FUK → HKG Jul 26, 11:25 UTCJul 26, 13:30 UTC2h 5m
2026-07-26 HGB308 HKG → FUK Jul 26, 06:25 UTCJul 26, 09:15 UTC2h 51m
2026-07-25 HGB321 NRT → HKG Jul 25, 12:05 UTCJul 25, 12:30 UTC25m
2026-07-25 HGB321 NRT → HKG Jul 25, 07:15 UTCJul 25, 11:15 UTC4h 0m
2026-07-25 HGB320 HKG → NRT Jul 25, 04:00 UTCJul 25, 05:45 UTC1h 45m
2026-07-25 HGB320 HKG → NRT Jul 25, 01:40 UTCJul 25, 01:55 UTC15m
2026-07-24 HGB705 TPE → HKG Jul 24, 18:20 UTCJul 24, 19:40 UTC1h 20m
2026-07-24 HGB704D HKG → TPE Jul 24, 16:05 UTCJul 24, 16:55 UTC50m
2026-07-24 HGB704 HKG → TPE Jul 24, 11:15 UTCJul 24, 13:35 UTC2h 20m
2026-07-24 HGB341 KIX → HKG Jul 24, 05:30 UTCJul 24, 08:50 UTC3h 20m
2026-07-24 HGB340 HKG → KIX Jul 24, 00:35 UTCJul 24, 04:00 UTC3h 25m
2026-07-23 HGB839 - Jul 23, 12:50 UTCJul 23, 13:10 UTC20m
2026-07-23 HGB838 - Jul 23, 09:55 UTCJul 23, 10:15 UTC20m
2026-07-23 HG309 - Jul 23, 05:35 UTCJul 23, 08:30 UTC2h 55m
2026-07-23 HGB308 HKG → FUK Jul 23, 00:55 UTCJul 23, 04:00 UTC3h 5m
2026-07-22 HGB323 NRT → HKG Jul 22, 03:35 UTCJul 22, 13:05 UTC9h 30m
2026-07-21 HGB851 - Jul 21, 13:00 UTCJul 21, 13:35 UTC35m
2026-07-21 HGB850 HKG → YIH Jul 21, 08:15 UTCJul 21, 08:30 UTC15m
2026-07-21 HGB337 OKA → HKG Jul 21, 05:10 UTCJul 21, 06:40 UTC1h 30m
2026-07-21 HGB336 - Jul 21, 00:50 UTCJul 21, 02:10 UTC1h 20m
2026-07-20 HGB321 NRT → HKG Jul 20, 08:40 UTCJul 20, 12:35 UTC3h 55m
2026-07-20 HGB320 HKG → NRT Jul 20, 03:10 UTCJul 20, 07:15 UTC4h 5m
2026-07-19 HGB851 HKG → HKG Jul 19, 09:20 UTCJul 19, 14:00 UTC4h 40m
2026-07-19 HGB337 OKA → HKG Jul 19, 05:45 UTCJul 19, 07:45 UTC2h 0m
2026-07-19 HGB336 - Jul 19, 01:55 UTCJul 19, 03:10 UTC1h 15m
2026-07-18 HGB323 NRT → HKG Jul 18, 10:20 UTCJul 18, 14:05 UTC3h 45m
2026-07-18 HGB322 HKG → NRT Jul 18, 04:35 UTCJul 18, 08:50 UTC4h 15m
2026-07-17 HGB383 FUK → HKG Jul 17, 23:50 UTCJul 18, 02:40 UTC2h 50m
2026-07-17 HGB382 HKG → CTS Jul 17, 19:09 UTCJul 17, 22:25 UTC3h 15m
2026-07-17 HGB323 NRT → HKG Jul 17, 09:35 UTCJul 17, 13:20 UTC3h 45m
2026-07-17 HGB322 HKG → NRT Jul 17, 03:39 UTCJul 17, 07:55 UTC4h 15m
2026-07-16 HGB323 - Jul 16, 10:35 UTCJul 16, 14:35 UTC4h 0m
2026-07-16 HGB322 HKG → NRT Jul 16, 04:45 UTCJul 16, 09:05 UTC4h 20m
2026-07-16 HGB383 - Jul 16, 02:25 UTCJul 16, 02:35 UTC10m
2026-07-15 HGB383 - Jul 15, 23:50 UTCJul 16, 01:55 UTC2h 5m
2026-07-15 HGB382 - Jul 15, 19:40 UTCJul 15, 22:45 UTC3h 5m
2026-07-15 HGB839 - Jul 15, 14:15 UTCJul 15, 14:50 UTC35m
2026-07-15 HGB838 - Jul 15, 11:20 UTCJul 15, 11:35 UTC15m
2026-07-15 HGB337 - Jul 15, 07:05 UTCJul 15, 08:30 UTC1h 25m
2026-07-15 HGB336 - Jul 15, 02:35 UTCJul 15, 03:55 UTC1h 20m
2026-07-14 HGB851 - Jul 14, 12:55 UTCJul 14, 13:40 UTC45m
2026-07-14 HGB850 - Jul 14, 08:15 UTCJul 14, 08:30 UTC15m
2026-07-14 HGB337 - Jul 14, 04:50 UTCJul 14, 06:25 UTC1h 35m
2026-07-14 HGB336 - Jul 14, 00:40 UTCJul 14, 02:15 UTC1h 35m
2026-07-13 HGB337 - Jul 13, 09:05 UTCJul 13, 09:45 UTC40m
2026-07-13 HGB337 - Jul 13, 07:30 UTCJul 13, 08:50 UTC1h 20m
2026-07-13 HGB336 - Jul 13, 05:35 UTCJul 13, 05:45 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-KJD page for operator, model, and routing details .

Mode-S 789277 frequently asked

What is Mode-S code 789277?
789277 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-KJD.
Where is Mode-S 789277 registered?
Mode-S code 789277 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 789277 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 789277, octal 36111167, decimal 7,901,815.
What flights does 789277 operate?
Mode-S 789277 has broadcast 20 distinct callsigns, including HGB309, HGB341, HGB308, HGB340, HGB323.