Apparatus

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sensors Mode-S transponder

78239C

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32QF · AIRBUS A-320neo

Hex
78239C
Octal
36021634
Decimal
7,873,436
Country
CN
Tail
B-32QF
Type
A20N
No current signal · last broadcast 12h ago
Flights observed
48
Distinct callsigns
16
Country
CN
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 78239C.

Country allocation

The ICAO 24-bit address 78239C 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 16 distinct

Callsign Airline Flights Last seen
CHH7360 - 12 2026-07-13
CHH7364 - 8 2026-07-07
CHH7280 - 5 2026-06-28
CHH7579 - 4 2026-06-30
CHH7304 - 4 2026-06-27
CHH7204 Hainan Airlines 4 2026-06-14
CHH7303 - 2 2026-06-30
CHH7688 Hainan Airlines 1 2026-06-05
CHH7687 Hainan Airlines 1 2026-06-04
CHH7564 - 1 2026-07-13
CHH7387 - 1 2026-07-06
CHH7363 Hainan Airlines 1 2026-07-02
CHH7240 - 1 2026-06-11
CHH7037 Hainan Airlines 1 2026-06-07
CHH7034 Hainan Airlines 1 2026-06-06
CHH3266 - 1 2026-05-22

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-07-13 CHH7360 - Jul 13, 23:45 UTCJul 14, 09:30 UTC9h 45m
2026-07-13 CHH7564 - Jul 13, 13:05 UTCJul 14, 09:30 UTC20h 25m
2026-07-08 CHH7360 - Jul 8, 09:20 UTCJul 8, 09:45 UTC25m
2026-07-07 CHH7364 - Jul 7, 14:20 UTCJul 7, 14:40 UTC20m
2026-07-07 CHH7360 - Jul 7, 09:05 UTCJul 7, 12:15 UTC3h 10m
2026-07-06 CHH7387 - Jul 6, 04:30 UTCJul 6, 04:40 UTC10m
2026-07-05 CHH7364 - Jul 5, 16:25 UTCJul 5, 16:50 UTC25m
2026-07-04 CHH7360 - Jul 4, 23:40 UTCJul 5, 09:35 UTC9h 55m
2026-07-02 CHH7364 - Jul 2, 15:10 UTCJul 2, 15:25 UTC15m
2026-07-02 CHH7363 SYX → LHW Jul 2, 12:55 UTCJul 2, 13:25 UTC30m
2026-07-01 CHH7360 - Jul 1, 23:20 UTCJul 2, 09:40 UTC10h 20m
2026-06-30 CHH7579 - Jun 30, 14:00 UTCJun 30, 23:55 UTC9h 55m
2026-06-30 CHH7303 - Jun 30, 01:04 UTCJun 30, 05:40 UTC4h 36m
2026-06-29 CHH7360 - Jun 29, 09:20 UTCJun 30, 05:40 UTC20h 21m
2026-06-28 CHH7360 - Jun 28, 16:05 UTCJun 29, 09:44 UTC17h 40m
2026-06-28 CHH7579 - Jun 28, 13:29 UTCJun 29, 09:44 UTC20h 15m
2026-06-28 CHH7280 - Jun 28, 11:39 UTCJun 28, 11:50 UTC10m
2026-06-28 CHH7280 - Jun 28, 08:29 UTCJun 28, 08:50 UTC20m
2026-06-27 CHH7304 - Jun 27, 16:04 UTCJun 28, 06:15 UTC14h 10m
2026-06-27 CHH7579 PEK → SYX Jun 27, 13:24 UTCJun 27, 13:35 UTC10m
2026-06-27 CHH7280 SYX → PEK Jun 27, 11:44 UTCJun 27, 11:55 UTC10m
2026-06-27 CHH7280 SYX → PEK Jun 27, 08:25 UTCJun 27, 08:49 UTC25m
2026-06-26 CHH7579 PEK → SYX Jun 26, 13:19 UTCJun 27, 05:59 UTC16h 40m
2026-06-26 CHH7280 SYX → PEK Jun 26, 08:34 UTCJun 26, 09:05 UTC30m
2026-06-26 CHH7304 TFU → SYX Jun 26, 01:20 UTCJun 26, 06:04 UTC4h 45m
2026-06-25 CHH7364 LHW → SYX Jun 25, 14:44 UTCJun 25, 15:04 UTC20m
2026-06-24 CHH7360 KWE → SYX Jun 24, 23:29 UTCJun 25, 09:50 UTC10h 20m
2026-06-24 CHH7364 LHW → SYX Jun 24, 14:09 UTCJun 24, 14:29 UTC20m
2026-06-23 CHH7360 KWE → SYX Jun 23, 23:34 UTCJun 24, 09:34 UTC10h 0m
2026-06-23 CHH7364 LHW → SYX Jun 23, 14:15 UTCJun 23, 14:29 UTC15m
2026-06-22 CHH7360 KWE → SYX Jun 22, 15:24 UTCJun 23, 09:40 UTC18h 15m
2026-06-22 CHH7304 TFU → SYX Jun 22, 05:34 UTCJun 23, 00:00 UTC18h 25m
2026-06-22 CHH7304 TFU → SYX Jun 22, 01:05 UTCJun 23, 00:00 UTC22h 55m
2026-06-22 CHH7303 SYX → TFU Jun 22, 00:50 UTCJun 22, 15:54 UTC15h 5m
2026-06-21 CHH7364 LHW → SYX Jun 21, 14:15 UTCJun 21, 14:34 UTC20m
2026-06-20 CHH7360 KWE → SYX Jun 20, 23:39 UTCJun 21, 09:40 UTC10h 0m
2026-06-20 CHH7364 LHW → SYX Jun 20, 14:19 UTCJun 20, 14:39 UTC20m
2026-06-19 CHH7360 KWE → SYX Jun 19, 15:59 UTCJun 20, 09:39 UTC17h 40m
2026-06-14 CHH7204 SZX → TSN Jun 14, 20:40 UTCJun 14, 21:00 UTC20m
2026-06-14 CHH7204 SZX → TSN Jun 14, 19:05 UTCJun 14, 19:15 UTC10m
2026-06-11 CHH7240 - Jun 11, 17:05 UTCJun 11, 17:20 UTC15m
2026-06-10 CHH7204 SZX → TSN Jun 10, 17:55 UTCJun 10, 18:10 UTC15m
2026-06-10 CHH7204 SZX → TSN Jun 10, 13:45 UTCJun 10, 14:00 UTC15m
2026-06-07 CHH7037 HAK → HFE Jun 7, 10:15 UTCJun 8, 00:30 UTC14h 15m
2026-06-06 CHH7034 CGO → HAK Jun 6, 15:10 UTCJun 7, 07:40 UTC16h 30m
2026-06-05 CHH7688 NGB → HAK Jun 5, 09:55 UTCJun 6, 07:10 UTC21h 15m
2026-06-04 CHH7687 NGB → TAO Jun 4, 23:40 UTCJun 5, 10:10 UTC10h 30m
2026-05-22 CHH3266 - May 22, 09:25 UTCMay 22, 14:50 UTC5h 25m

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-32QF page for operator, model, and routing details .

Mode-S 78239C frequently asked

What is Mode-S code 78239C?
78239C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32QF.
Where is Mode-S 78239C registered?
Mode-S code 78239C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78239C broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78239C, octal 36021634, decimal 7,873,436.
What flights does 78239C operate?
Mode-S 78239C has broadcast 16 distinct callsigns, including CHH7360, CHH7364, CHH7280, CHH7579, CHH7304.