Apparatus

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sensors Mode-S transponder

78140B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1130 · BOEING 737-800

Hex
78140B
Octal
36012013
Decimal
7,869,451
Country
CN
Tail
B-1130
Type
B738
No current signal · last broadcast 10h ago
Flights observed
74
Distinct callsigns
20
Country
CN
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 78140B.

Country allocation

The ICAO 24-bit address 78140B 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
CHH720 Hainan Airlines 4 2026-06-07
CHH439 - 4 2026-07-09
CHH7731 - 3 2026-07-03
CHH719 Hainan Airlines 3 2026-06-07
CHH440 - 3 2026-07-09
CHH784 Hainan Airlines 2 2026-06-07
CHH783 Hainan Airlines 2 2026-06-07
CHH7247 - 2 2026-07-13
CHH7164 Hainan Airlines 2 2026-06-12
CHH7044 - 2 2026-07-11
CHH473 - 2 2026-07-08
CHH7834 Hainan Airlines 1 2026-05-18
CHH7833 Hainan Airlines 1 2026-05-18
CHH7811 Hainan Airlines 1 2026-06-11
CHH7809 - 1 2026-07-14
CHH7773 - 1 2026-07-03
CHH7766 - 1 2026-07-05
CHH7765 Hainan Airlines 1 2026-05-24
CHH7760 - 1 2026-07-02
CHH7759 - 1 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CHH7809 - Jul 14, 06:45 UTCJul 14, 07:05 UTC20m
2026-07-13 CHH7247 - Jul 13, 05:15 UTCJul 13, 05:35 UTC20m
2026-07-12 CHH7644 - Jul 12, 08:35 UTCJul 12, 08:45 UTC10m
2026-07-11 CHH7105 - Jul 11, 23:45 UTCJul 11, 23:55 UTC10m
2026-07-11 CHH7381 - Jul 11, 14:45 UTCJul 11, 15:50 UTC1h 5m
2026-07-11 CHH7044 - Jul 11, 02:15 UTCJul 11, 08:05 UTC5h 50m
2026-07-10 CHH6258 - Jul 10, 07:00 UTCJul 11, 02:15 UTC19h 15m
2026-07-09 CHH7082 - Jul 9, 11:25 UTCJul 10, 07:15 UTC19h 50m
2026-07-09 CHH440 - Jul 9, 05:55 UTCJul 9, 08:00 UTC2h 5m
2026-07-09 CHH439 - Jul 9, 00:55 UTCJul 9, 03:05 UTC2h 10m
2026-07-09 CHH439 - Jul 9, 00:00 UTCJul 9, 00:10 UTC10m
2026-07-08 CHH7193 - Jul 8, 12:20 UTCJul 8, 12:35 UTC15m
2026-07-08 CHH474 - Jul 8, 05:50 UTCJul 8, 07:20 UTC1h 30m
2026-07-08 CHH473 - Jul 8, 02:10 UTCJul 8, 03:50 UTC1h 40m
2026-07-08 CHH473 - Jul 8, 01:05 UTCJul 8, 01:15 UTC10m
2026-07-07 CHH7153 - Jul 7, 12:00 UTCJul 7, 12:20 UTC20m
2026-07-07 CHH440 - Jul 7, 05:50 UTCJul 7, 07:50 UTC2h 0m
2026-07-07 CHH439 - Jul 7, 01:00 UTCJul 7, 03:15 UTC2h 15m
2026-07-05 CHH7026 - Jul 5, 14:10 UTCJul 5, 14:20 UTC10m
2026-07-05 CHH7766 - Jul 5, 12:40 UTCJul 5, 12:50 UTC10m
2026-07-04 CHH7256 - Jul 4, 19:00 UTCJul 4, 19:25 UTC25m
2026-07-04 CHH7255 - Jul 4, 11:55 UTCJul 4, 12:05 UTC10m
2026-07-04 CHH7176 - Jul 4, 08:35 UTCJul 4, 08:50 UTC15m
2026-07-04 CHH7175 - Jul 4, 02:20 UTCJul 4, 02:35 UTC15m
2026-07-03 CHH7773 - Jul 3, 15:20 UTCJul 3, 15:30 UTC10m
2026-07-03 CHH7731 - Jul 3, 01:35 UTCJul 3, 01:45 UTC10m
2026-07-02 CHH7760 - Jul 2, 16:05 UTCJul 2, 16:15 UTC10m
2026-07-02 CHH7759 - Jul 2, 08:55 UTCJul 2, 13:30 UTC4h 35m
2026-07-02 CHH7740 - Jul 2, 05:00 UTCJul 2, 05:10 UTC10m
2026-07-01 CHH7739 - Jul 1, 22:30 UTCJul 1, 22:40 UTC10m
2026-06-12 CHH7367 PEK → CKG Jun 12, 13:40 UTCJun 12, 14:01 UTC20m
2026-06-12 CHH7081 HAK → PEK Jun 12, 11:15 UTCJun 12, 11:25 UTC10m
2026-06-12 CHH7164 NKG → SZX Jun 12, 05:20 UTCJun 12, 05:40 UTC20m
2026-06-11 CHH7811 PEK → CAN Jun 11, 08:40 UTCJun 11, 09:00 UTC20m
2026-06-10 CHH7185 PEK → YIH Jun 10, 23:25 UTCJun 10, 23:35 UTC10m
2026-06-10 CHH7295 PEK → FOC Jun 10, 09:40 UTCJun 10, 09:50 UTC10m
2026-06-09 CHH7247 PEK → TFU Jun 9, 05:05 UTCJun 9, 05:25 UTC20m
2026-06-08 CHH7044 TNA → HAK Jun 8, 02:15 UTCJun 8, 13:00 UTC10h 45m
2026-06-07 CHH784 HAN → HAK Jun 7, 15:15 UTCJun 7, 15:45 UTC30m
2026-06-07 CHH783 HAK → HAN Jun 7, 12:00 UTCJun 7, 12:35 UTC35m
2026-06-07 CHH720 HKG → HAK Jun 7, 09:25 UTCJun 7, 09:40 UTC15m
2026-06-07 CHH719 HAK → HKG Jun 7, 07:30 UTCJun 7, 08:05 UTC35m
2026-06-06 CHH720 HKG → HAK Jun 6, 09:19 UTCJun 6, 09:24 UTC5m
2026-06-06 CHH719 HAK → HKG Jun 6, 07:25 UTCJun 6, 07:35 UTC10m
2026-06-06 CHH7266 XIY → HAK Jun 6, 03:10 UTCJun 6, 03:20 UTC10m
2026-06-02 CHH7165 XIY → XNN Jun 2, 00:40 UTCJun 2, 06:35 UTC5h 55m
2026-06-01 CHH748 SIN → HAK Jun 1, 04:15 UTCJun 1, 07:00 UTC2h 45m
2026-06-01 CHH747 HAK → SIN Jun 1, 00:10 UTCJun 1, 02:35 UTC2h 25m
2026-05-31 CHH784 HAN → HAK May 31, 14:30 UTCMay 31, 15:00 UTC30m
2026-05-31 CHH783 HAK → HAN May 31, 11:45 UTCMay 31, 12:25 UTC40m

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-1130 page for operator, model, and routing details .

Mode-S 78140B frequently asked

What is Mode-S code 78140B?
78140B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1130.
Where is Mode-S 78140B registered?
Mode-S code 78140B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78140B broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78140B, octal 36012013, decimal 7,869,451.
What flights does 78140B operate?
Mode-S 78140B has broadcast 20 distinct callsigns, including CHH720, CHH439, CHH7731, CHH719, CHH440.