Apparatus

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sensors Mode-S transponder

78140C

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1135 · BOEING 787-9 Dreamliner

Hex
78140C
Octal
36012014
Decimal
7,869,452
Country
CN
Tail
B-1135
Type
B789
No current signal · last broadcast 1h ago
Flights observed
171
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 78140C.

Country allocation

The ICAO 24-bit address 78140C 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
CHH759 Hainan Airlines 8 2026-05-10
CHH445 - 8 2026-07-08
CHH446 - 7 2026-07-09
CHH7703 - 6 2026-07-06
CHH760 Hainan Airlines 6 2026-05-10
CHH492 - 6 2026-07-12
CHH7963 Hainan Airlines 5 2026-06-12
CHH7714 - 5 2026-07-11
CHH798 - 4 2026-07-08
CHH797 - 4 2026-07-07
CHH775 Hainan Airlines 4 2026-06-08
CHH7711 - 4 2026-06-26
CHH7706 - 4 2026-07-13
CHH7704 - 4 2026-07-03
CHH7475 - 4 2026-06-30
CHH7395 Hainan Airlines 4 2026-05-14
CHH491 - 4 2026-07-11
CHH489 - 4 2026-07-05
CHH471 Hainan Airlines 4 2026-05-25
CHH7964 Hainan Airlines 3 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CHH428 - Jul 14, 11:05 UTCJul 14, 14:40 UTC3h 35m
2026-07-13 CHH427 - Jul 13, 09:50 UTCJul 14, 04:50 UTC19h 0m
2026-07-13 CHH7706 - Jul 13, 05:25 UTCJul 13, 05:35 UTC10m
2026-07-13 CHH7701 - Jul 13, 03:01 UTCJul 13, 03:15 UTC15m
2026-07-13 CHH7701 - Jul 13, 00:40 UTCJul 13, 01:01 UTC20m
2026-07-12 CHH492 - Jul 12, 20:10 UTCJul 12, 20:30 UTC20m
2026-07-12 CHH492 - Jul 12, 11:40 UTCJul 12, 17:50 UTC6h 10m
2026-07-11 CHH491 - Jul 11, 20:05 UTCJul 12, 05:40 UTC9h 35m
2026-07-11 CHH7714 - Jul 11, 14:05 UTCJul 11, 14:30 UTC25m
2026-07-11 CHH7714 - Jul 11, 11:40 UTCJul 11, 11:55 UTC15m
2026-07-11 CHH7025 - Jul 11, 09:45 UTCJul 11, 09:55 UTC10m
2026-07-09 CHH446 - Jul 9, 19:35 UTCJul 10, 06:05 UTC10h 30m
2026-07-08 CHH445 - Jul 8, 23:25 UTCJul 9, 17:05 UTC17h 40m
2026-07-08 CHH445 - Jul 8, 19:05 UTCJul 9, 17:05 UTC22h 0m
2026-07-08 CHH445 - Jul 8, 18:35 UTCJul 9, 17:00 UTC22h 25m
2026-07-08 CHH445 - Jul 8, 13:05 UTCJul 9, 09:25 UTC20h 20m
2026-07-08 CHH445 - Jul 8, 11:50 UTCJul 9, 09:25 UTC21h 35m
2026-07-08 CHH798 - Jul 8, 09:05 UTCJul 9, 09:00 UTC23h 55m
2026-07-07 CHH797 - Jul 7, 19:50 UTCJul 8, 05:40 UTC9h 50m
2026-07-06 CHH7703 - Jul 6, 04:20 UTCJul 6, 04:35 UTC15m
2026-07-06 CHH7703 - Jul 6, 01:50 UTCJul 6, 02:10 UTC20m
2026-07-05 CHH490 - Jul 5, 20:10 UTCJul 5, 20:30 UTC20m
2026-07-05 CHH490 - Jul 5, 12:10 UTCJul 5, 17:45 UTC5h 35m
2026-07-05 CHH489 - Jul 5, 04:35 UTCJul 5, 04:50 UTC15m
2026-07-04 CHH489 - Jul 4, 19:50 UTCJul 5, 02:35 UTC6h 45m
2026-07-03 CHH7612 PVG → PEK Jul 3, 15:10 UTCJul 3, 15:20 UTC10m
2026-07-03 CHH7704 - Jul 3, 02:50 UTCJul 3, 03:00 UTC10m
2026-07-02 CHH7852 - Jul 2, 15:55 UTCJul 2, 16:05 UTC10m
2026-06-30 CHH7851 - Jun 30, 23:00 UTCJun 30, 23:10 UTC10m
2026-06-30 CHH7476 - Jun 30, 14:25 UTCJun 30, 14:35 UTC10m
2026-06-30 CHH7475 - Jun 30, 08:05 UTCJun 30, 08:20 UTC15m
2026-06-29 CHH7852 URC → SZX Jun 29, 15:14 UTCJun 29, 15:24 UTC10m
2026-06-26 CHH7851 - Jun 26, 23:25 UTCJun 26, 23:34 UTC10m
2026-06-26 CHH7711 - Jun 26, 11:55 UTCJun 26, 12:10 UTC15m
2026-06-25 CHH7813 - Jun 25, 13:00 UTCJun 25, 13:14 UTC15m
2026-06-24 CHH7813 - Jun 24, 11:45 UTCJun 24, 12:04 UTC20m
2026-06-23 CHH7605 PEK → SHA Jun 23, 07:55 UTCJun 23, 08:04 UTC10m
2026-06-22 CHH7281 - Jun 22, 08:15 UTCJun 22, 08:25 UTC10m
2026-06-21 CHH7972 - Jun 21, 10:09 UTCJun 22, 01:44 UTC15h 35m
2026-06-20 CHH7971 - Jun 20, 13:34 UTCJun 21, 07:04 UTC17h 30m
2026-06-17 CHH7851 URC → LHW Jun 17, 23:25 UTCJun 17, 23:40 UTC15m
2026-06-16 CHH428 MXP → CKG Jun 16, 11:00 UTCJun 16, 14:35 UTC3h 35m
2026-06-15 CHH427 - Jun 15, 23:54 UTCJun 16, 06:30 UTC6h 35m
2026-06-15 CHH7357 SZX → CKG Jun 15, 15:50 UTCJun 15, 15:59 UTC10m
2026-06-15 CHH7025 HAK → SZX Jun 15, 13:25 UTCJun 15, 13:45 UTC20m
2026-06-12 CHH7964 CSX → HAK Jun 12, 21:20 UTCJun 13, 03:45 UTC6h 25m
2026-06-12 CHH7963 CSX → LHR Jun 12, 11:15 UTCJun 12, 18:01 UTC6h 45m
2026-06-10 CHH7912 LHR → HAK Jun 10, 21:25 UTCJun 11, 08:10 UTC10h 45m
2026-06-10 CHH7911 HAK → LHR Jun 10, 11:15 UTCJun 10, 18:35 UTC7h 20m
2026-06-09 CHH7911 HAK → LHR Jun 9, 19:40 UTCJun 10, 18:35 UTC22h 55m

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-1135 page for operator, model, and routing details .

Mode-S 78140C frequently asked

What is Mode-S code 78140C?
78140C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1135.
Where is Mode-S 78140C registered?
Mode-S code 78140C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78140C broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78140C, octal 36012014, decimal 7,869,452.
What flights does 78140C operate?
Mode-S 78140C has broadcast 20 distinct callsigns, including CHH759, CHH445, CHH446, CHH7703, CHH760.