Apparatus

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sensors Mode-S transponder

789270

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-KJC · BOEING 737-800

Hex
789270
Octal
36111160
Decimal
7,901,808
Country
CN
Tail
B-KJC
Type
B738
No current signal · last broadcast Jul 26, 20:05 UTC
Flights observed
302
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 20:05 UTC

Last known position

Most recent position reported by Mode-S 789270.

Country allocation

The ICAO 24-bit address 789270 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 22 2026-07-25
HGB341 - 19 2026-07-15
HGB323 Greater Bay Airlines 14 2026-07-19
HGB321 Greater Bay Airlines 14 2026-07-23
HGB308 Greater Bay Airlines 14 2026-07-24
HGB340 - 12 2026-07-15
HGB322 Greater Bay Airlines 11 2026-07-19
HGB705 - 10 2026-06-25
HGB703 Greater Bay Airlines 10 2026-07-22
HGB320 Greater Bay Airlines 10 2026-07-23
HGB702 Greater Bay Airlines 8 2026-07-22
HGB8953 - 7 2026-07-24
HGB872 - 7 2026-07-08
HGB839 - 7 2026-07-18
HGB838 - 7 2026-07-18
HGB881 - 6 2026-07-12
HGB383 Greater Bay Airlines 6 2026-07-19
HGB2387 Greater Bay Airlines 6 2026-06-29
HGB8952 - 5 2026-07-24
HGB873 - 5 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 HGB2353 KIX → HKG Jul 26, 16:40 UTCJul 26, 20:00 UTC3h 20m
2026-07-26 HGB2352 HKG → KIX Jul 26, 12:15 UTCJul 26, 15:35 UTC3h 20m
2026-07-26 HGB309D - Jul 26, 09:50 UTCJul 26, 10:45 UTC55m
2026-07-25 HGB309 FUK → HKG Jul 25, 04:35 UTCJul 25, 08:55 UTC4h 20m
2026-07-24 HGB308 HKG → FUK Jul 24, 23:40 UTCJul 25, 02:35 UTC2h 55m
2026-07-24 HGB8953 - Jul 24, 11:45 UTCJul 24, 12:25 UTC40m
2026-07-24 HGB8952 - Jul 24, 01:25 UTCJul 24, 01:40 UTC15m
2026-07-23 HGB282 BKK → HKG Jul 23, 21:05 UTCJul 23, 21:10 UTC5m
2026-07-23 HGB282 BKK → HKG Jul 23, 18:50 UTCJul 23, 19:15 UTC25m
2026-07-23 HGB281 HKG → BKK Jul 23, 14:50 UTCJul 23, 16:25 UTC1h 35m
2026-07-23 HGB281 HKG → BKK Jul 23, 14:00 UTCJul 23, 14:15 UTC15m
2026-07-23 HGB321 NRT → HKG Jul 23, 07:25 UTCJul 23, 11:15 UTC3h 50m
2026-07-23 HGB320 HKG → NRT Jul 23, 01:40 UTCJul 23, 05:45 UTC4h 5m
2026-07-22 HGB8236 - Jul 22, 12:55 UTCJul 22, 16:35 UTC3h 40m
2026-07-22 HGB703 TPE → HKG Jul 22, 03:55 UTCJul 22, 05:25 UTC1h 30m
2026-07-22 HGB702 HKG → TPE Jul 22, 01:15 UTCJul 22, 02:40 UTC1h 25m
2026-07-21 HGB309 FUK → HKG Jul 21, 06:40 UTCJul 21, 09:40 UTC3h 0m
2026-07-21 HGB308 HKG → FUK Jul 21, 04:40 UTCJul 21, 05:05 UTC25m
2026-07-21 HGB308 HKG → FUK Jul 21, 02:05 UTCJul 21, 03:55 UTC1h 50m
2026-07-20 HGB2347 - Jul 20, 14:15 UTCJul 20, 17:30 UTC3h 15m
2026-07-20 HGB2346 HKG → KIX Jul 20, 09:40 UTCJul 20, 13:05 UTC3h 25m
2026-07-20 HGB309 FUK → HKG Jul 20, 07:20 UTCJul 20, 07:35 UTC15m
2026-07-20 HGB309 FUK → HKG Jul 20, 04:40 UTCJul 20, 06:50 UTC2h 10m
2026-07-20 HGB308 HKG → FUK Jul 20, 00:10 UTCJul 20, 02:55 UTC2h 45m
2026-07-19 HGB323 NRT → HKG Jul 19, 10:20 UTCJul 19, 14:20 UTC4h 0m
2026-07-19 HGB322 HKG → NRT Jul 19, 04:50 UTCJul 19, 08:55 UTC4h 5m
2026-07-19 HGB383 FUK → HKG Jul 19, 00:25 UTCJul 19, 03:10 UTC2h 45m
2026-07-18 HGB382 HKG → CTS Jul 18, 19:45 UTCJul 18, 22:40 UTC2h 55m
2026-07-18 HGB839 - Jul 18, 12:50 UTCJul 18, 13:25 UTC35m
2026-07-18 HGB838 - Jul 18, 09:40 UTCJul 18, 09:55 UTC15m
2026-07-18 HGB337 - Jul 18, 05:50 UTCJul 18, 07:15 UTC1h 25m
2026-07-18 HGB336 - Jul 18, 00:55 UTCJul 18, 02:05 UTC1h 10m
2026-07-17 HGB2550 DAD → HKG Jul 17, 21:30 UTCJul 17, 21:50 UTC20m
2026-07-17 HGB2549 - Jul 17, 14:39 UTCJul 17, 14:55 UTC15m
2026-07-17 HGB8953 - Jul 17, 02:05 UTCJul 17, 13:05 UTC11h 0m
2026-07-16 HGB839 - Jul 16, 13:05 UTCJul 16, 13:40 UTC35m
2026-07-16 HGB838 - Jul 16, 09:50 UTCJul 16, 10:04 UTC15m
2026-07-16 HGB309 - Jul 16, 08:00 UTCJul 16, 08:10 UTC10m
2026-07-16 HGB309 - Jul 16, 05:25 UTCJul 16, 07:30 UTC2h 5m
2026-07-16 HGB308 - Jul 16, 01:10 UTCJul 16, 04:15 UTC3h 5m
2026-07-15 HGB341 - Jul 15, 05:25 UTCJul 15, 08:35 UTC3h 10m
2026-07-15 HGB340 HKG → KIX Jul 15, 00:40 UTCJul 15, 04:05 UTC3h 25m
2026-07-14 HGB323 NRT → HKG Jul 14, 10:40 UTCJul 14, 14:30 UTC3h 50m
2026-07-14 HGB322 HKG → NRT Jul 14, 05:00 UTCJul 14, 09:20 UTC4h 20m
2026-07-14 HGB383 - Jul 14, 01:50 UTCJul 14, 03:20 UTC1h 30m
2026-07-14 HGB383 - Jul 14, 00:30 UTCJul 14, 00:40 UTC10m
2026-07-13 HGB382 - Jul 13, 23:00 UTCJul 13, 23:15 UTC15m
2026-07-13 HGB382 - Jul 13, 20:30 UTCJul 13, 22:00 UTC1h 30m
2026-07-13 HGB323 NRT → HKG Jul 13, 09:55 UTCJul 13, 13:55 UTC4h 0m
2026-07-13 HGB322 - Jul 13, 04:00 UTCJul 13, 08:20 UTC4h 20m

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

Mode-S 789270 frequently asked

What is Mode-S code 789270?
789270 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-KJC.
Where is Mode-S 789270 registered?
Mode-S code 789270 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 789270 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 789270, octal 36111160, decimal 7,901,808.
What flights does 789270 operate?
Mode-S 789270 has broadcast 20 distinct callsigns, including HGB309, HGB341, HGB323, HGB321, HGB308.