Apparatus

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sensors Mode-S transponder

781318

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1048 · AIRBUS A-330-300

Hex
781318
Octal
36011430
Decimal
7,869,208
Country
CN
Tail
B-1048
Type
A333
No current signal · last broadcast 1h ago
Flights observed
72
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 781318.

Country allocation

The ICAO 24-bit address 781318 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
CHH754 Hainan Airlines 8 2026-05-21
CHH7603 Hainan Airlines 6 2026-05-28
CHH7937 Hainan Airlines 5 2026-05-27
CHH7705 Hainan Airlines 5 2026-04-22
CHH7938 Hainan Airlines 4 2026-05-27
CHH753 Hainan Airlines 4 2026-05-20
CHH752 Hainan Airlines 3 2026-05-23
CHH751 Hainan Airlines 3 2026-05-22
CHH7807 Hainan Airlines 2 2026-05-06
CHH7710 Hainan Airlines 2 2026-04-22
CHH7709 Hainan Airlines 2 2026-04-20
CHH7706 Hainan Airlines 2 2026-05-12
CHH7702 Hainan Airlines 2 2026-04-21
CHH7179 Hainan Airlines 2 2026-05-26
CHH407 Hainan Airlines 2 2026-05-29
CHH7816 - 1 2026-04-23
CHH7815 Hainan Airlines 1 2026-04-29
CHH7813 Hainan Airlines 1 2026-05-05
CHH7812 Hainan Airlines 1 2026-04-30
CHH7811 Hainan Airlines 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CHH407 PEK → EDI May 29, 19:55 UTCMay 30, 05:55 UTC10h 0m
2026-05-29 CHH7382 PEK → HAK May 29, 00:25 UTCMay 29, 00:50 UTC25m
2026-05-28 CHH7603 PEK → SHA May 28, 01:05 UTCMay 28, 01:15 UTC10m
2026-05-27 CHH7938 LAX → PEK May 27, 20:30 UTCMay 27, 20:50 UTC20m
2026-05-27 CHH7938 LAX → PEK May 27, 12:10 UTCMay 27, 18:05 UTC5h 55m
2026-05-27 CHH7937 PEK → PRG May 27, 04:09 UTCMay 27, 04:24 UTC15m
2026-05-26 CHH7937 PEK → PRG May 26, 22:09 UTCMay 27, 02:24 UTC4h 15m
2026-05-26 CHH7937 PEK → PRG May 26, 18:59 UTCMay 26, 19:10 UTC10m
2026-05-26 CHH7179 PEK → SYX May 26, 01:55 UTCMay 26, 02:15 UTC20m
2026-05-25 CHH408 EDI → PEK May 25, 11:40 UTCMay 25, 14:55 UTC3h 15m
2026-05-24 CHH407 PEK → EDI May 24, 23:00 UTCMay 25, 05:45 UTC6h 45m
2026-05-23 CHH752 DUB → PEK May 23, 11:20 UTCMay 23, 17:45 UTC6h 25m
2026-05-22 CHH751 PEK → DUB May 22, 23:10 UTCMay 23, 02:05 UTC2h 55m
2026-05-22 CHH7603 PEK → SHA May 22, 01:05 UTCMay 22, 01:20 UTC15m
2026-05-21 CHH754 MAN → PEK May 21, 20:35 UTCMay 21, 20:55 UTC20m
2026-05-21 CHH754 MAN → PEK May 21, 11:20 UTCMay 21, 17:55 UTC6h 35m
2026-05-20 CHH753 PEK → MAN May 20, 19:30 UTCMay 21, 05:30 UTC10h 0m
2026-05-20 CHH7808 CAN → PEK May 20, 08:10 UTCMay 20, 08:25 UTC15m
2026-05-20 CHH7801 PEK → CAN May 20, 00:45 UTCMay 20, 01:10 UTC25m
2026-05-19 CHH7607 PEK → SHA May 19, 09:00 UTCMay 19, 09:10 UTC10m
2026-05-19 CHH7603 PEK → SHA May 19, 01:00 UTCMay 19, 01:15 UTC15m
2026-05-18 CHH7938 LAX → PEK May 18, 20:40 UTCMay 18, 21:00 UTC20m
2026-05-18 CHH7938 LAX → PEK May 18, 12:05 UTCMay 18, 18:05 UTC6h 0m
2026-05-17 CHH7937 PEK → PRG May 17, 22:10 UTCMay 17, 23:00 UTC50m
2026-05-17 CHH7937 PEK → PRG May 17, 19:01 UTCMay 17, 19:10 UTC10m
2026-05-15 CHH754 MAN → PEK May 15, 11:20 UTCMay 15, 17:55 UTC6h 34m
2026-05-14 CHH753 PEK → MAN May 14, 22:15 UTCMay 15, 05:15 UTC7h 0m
2026-05-14 CHH7704 SZX → PEK May 14, 01:10 UTCMay 14, 01:25 UTC15m
2026-05-12 CHH7706 SZX → PEK May 12, 05:30 UTCMay 12, 05:50 UTC20m
2026-05-12 CHH7701 PEK → SZX May 12, 03:40 UTCMay 12, 03:50 UTC10m
2026-05-11 CHH7706 SZX → PEK May 11, 05:30 UTCMay 11, 05:40 UTC10m
2026-05-07 CHH7605 PEK → SHA May 7, 07:50 UTCMay 7, 08:00 UTC10m
2026-05-07 CHH7603 PEK → SHA May 7, 01:00 UTCMay 7, 01:10 UTC10m
2026-05-06 CHH7807 PEK → CAN May 6, 04:40 UTCMay 6, 05:00 UTC20m
2026-05-05 CHH7813 PEK → CAN May 5, 12:00 UTCMay 5, 12:15 UTC15m
2026-05-05 CHH7079 PEK → SYX May 5, 00:55 UTCMay 5, 01:15 UTC20m
2026-05-02 CHH7603 PEK → SHA May 2, 00:55 UTCMay 2, 01:05 UTC10m
2026-05-01 CHH754 MAN → PEK May 1, 20:30 UTCMay 1, 20:50 UTC20m
2026-05-01 CHH754 MAN → PEK May 1, 11:30 UTCMay 1, 18:00 UTC6h 30m
2026-04-30 CHH753 PEK → MAN Apr 30, 19:05 UTCMay 1, 05:40 UTC10h 35m
2026-04-30 CHH7812 CAN → PEK Apr 30, 13:45 UTCApr 30, 13:55 UTC10m
2026-04-30 CHH7807 PEK → CAN Apr 30, 04:55 UTCApr 30, 05:10 UTC15m
2026-04-29 CHH7815 PEK → CAN Apr 29, 12:40 UTCApr 29, 13:00 UTC20m
2026-04-29 CHH7179 PEK → SYX Apr 29, 01:45 UTCApr 29, 01:54 UTC10m
2026-04-28 CHH752 DUB → PEK Apr 28, 21:10 UTCApr 28, 21:25 UTC15m
2026-04-28 CHH752 DUB → PEK Apr 28, 11:20 UTCApr 28, 18:25 UTC7h 5m
2026-04-27 CHH751 PEK → DUB Apr 27, 20:05 UTCApr 28, 06:15 UTC10h 10m
2026-04-27 CHH751 PEK → DUB Apr 27, 05:25 UTCApr 28, 04:00 UTC22h 35m
2026-04-26 CHH7805 PEK → CAN Apr 26, 02:35 UTCApr 26, 02:45 UTC10m
2026-04-24 CHH7613 PEK → PVG Apr 24, 23:50 UTCApr 25, 00:00 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-1048 page for operator, model, and routing details .

Mode-S 781318 frequently asked

What is Mode-S code 781318?
781318 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1048.
Where is Mode-S 781318 registered?
Mode-S code 781318 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781318 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 781318, octal 36011430, decimal 7,869,208.
What flights does 781318 operate?
Mode-S 781318 has broadcast 20 distinct callsigns, including CHH754, CHH7603, CHH7937, CHH7705, CHH7938.