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 9h ago
Flights observed
112
Distinct callsigns
20
Country
CN
Last broadcast
9h 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 - 12 2026-07-13
CHH7937 - 7 2026-06-28
CHH753 - 7 2026-07-12
CHH752 - 7 2026-07-10
CHH7603 Hainan Airlines 6 2026-05-28
CHH751 - 6 2026-07-09
CHH7938 - 5 2026-06-29
CHH7705 Hainan Airlines 5 2026-04-22
CHH7847 - 3 2026-07-12
CHH408 Hainan Airlines 3 2026-05-30
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
CHH7382 Hainan Airlines 2 2026-06-03
CHH7277 - 2 2026-07-14
CHH7179 Hainan Airlines 2 2026-05-26
CHH6224 Hainan Airlines 2 2026-07-05
CHH407 Hainan Airlines 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CHH7277 - Jul 14, 00:30 UTCJul 14, 00:40 UTC10m
2026-07-13 CHH754 - Jul 13, 20:55 UTCJul 13, 21:15 UTC20m
2026-07-13 CHH754 - Jul 13, 11:35 UTCJul 13, 18:25 UTC6h 50m
2026-07-12 CHH753 - Jul 12, 22:55 UTCJul 13, 02:40 UTC3h 45m
2026-07-12 CHH753 - Jul 12, 19:35 UTCJul 12, 19:50 UTC15m
2026-07-12 CHH7847 - Jul 12, 08:10 UTCJul 12, 08:35 UTC25m
2026-07-12 CHH7198 - Jul 12, 03:40 UTCJul 12, 04:01 UTC20m
2026-07-11 CHH7197 - Jul 11, 23:10 UTCJul 11, 23:35 UTC25m
2026-07-11 CHH7189 - Jul 11, 00:35 UTCJul 11, 01:00 UTC25m
2026-07-10 CHH752 - Jul 10, 20:25 UTCJul 10, 20:40 UTC15m
2026-07-10 CHH752 - Jul 10, 11:10 UTCJul 10, 17:50 UTC6h 40m
2026-07-09 CHH751 - Jul 9, 19:20 UTCJul 10, 05:55 UTC10h 35m
2026-07-09 CHH7847 - Jul 9, 08:30 UTCJul 9, 08:45 UTC15m
2026-07-09 CHH7804 - Jul 9, 03:50 UTCJul 9, 04:05 UTC15m
2026-07-05 CHH6224 PEK → URC Jul 5, 17:15 UTCJul 5, 17:25 UTC10m
2026-07-05 CHH7335 - Jul 5, 04:30 UTCJul 5, 04:55 UTC25m
2026-07-05 CHH6223 URC → PEK Jul 5, 02:15 UTCJul 5, 02:30 UTC15m
2026-06-30 CHH6224 PEK → URC Jun 30, 13:30 UTCJun 30, 13:50 UTC20m
2026-06-30 CHH7847 - Jun 30, 00:14 UTCJun 30, 00:35 UTC20m
2026-06-29 CHH7938 - Jun 29, 13:30 UTCJun 29, 22:15 UTC8h 45m
2026-06-28 CHH7937 - Jun 28, 23:44 UTCJun 29, 00:34 UTC50m
2026-06-28 CHH7937 - Jun 28, 20:29 UTCJun 28, 20:39 UTC10m
2026-06-28 CHH7612 PVG → PEK Jun 28, 16:29 UTCJun 28, 17:10 UTC40m
2026-06-28 CHH7568 - Jun 28, 09:30 UTCJun 28, 09:39 UTC10m
2026-06-26 CHH7834 TSN → URC Jun 26, 11:24 UTCJun 26, 11:49 UTC25m
2026-06-25 CHH7833 URC → TSN Jun 25, 23:59 UTCJun 26, 09:20 UTC9h 20m
2026-06-06 CHH754 MAN → PEK Jun 6, 20:39 UTCJun 6, 20:49 UTC10m
2026-06-06 CHH754 MAN → PEK Jun 6, 11:35 UTCJun 6, 18:09 UTC6h 35m
2026-06-05 CHH753 PEK → MAN Jun 5, 19:25 UTCJun 5, 23:10 UTC3h 45m
2026-06-05 CHH7246 URC → PEK Jun 5, 14:40 UTCJun 5, 15:00 UTC20m
2026-06-05 CHH7245 PEK → URC Jun 5, 06:40 UTCJun 5, 07:05 UTC25m
2026-06-04 CHH752 DUB → PEK Jun 4, 20:40 UTCJun 4, 20:55 UTC15m
2026-06-04 CHH752 DUB → PEK Jun 4, 11:20 UTCJun 4, 18:10 UTC6h 50m
2026-06-03 CHH751 PEK → DUB Jun 3, 22:55 UTCJun 4, 05:55 UTC7h 0m
2026-06-03 CHH751 PEK → DUB Jun 3, 19:30 UTCJun 3, 19:45 UTC15m
2026-06-03 CHH7382 PEK → HAK Jun 3, 00:15 UTCJun 3, 03:10 UTC2h 55m
2026-06-02 CHH7678 HGH → PEK Jun 2, 16:35 UTCJun 2, 16:55 UTC20m
2026-06-02 CHH7677 PEK → HGH Jun 2, 11:25 UTCJun 2, 11:35 UTC10m
2026-05-30 CHH408 EDI → PEK May 30, 20:10 UTCMay 30, 20:25 UTC15m
2026-05-30 CHH408 EDI → PEK May 30, 11:25 UTCMay 30, 17:50 UTC6h 25m
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

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 9h 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, CHH7937, CHH753, CHH752, CHH7603.