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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 Jul 26, 19:20 UTC
Flights observed
143
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 19:20 UTC

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 Hainan Airlines 11 2026-07-26
CHH7938 Hainan Airlines 10 2026-07-24
CHH752 - 9 2026-07-16
CHH7603 Hainan Airlines 7 2026-07-23
CHH753 - 7 2026-07-12
CHH751 - 7 2026-07-15
CHH7847 Hainan Airlines 5 2026-07-23
CHH7705 Hainan Airlines 5 2026-04-22
CHH7277 Hainan Airlines 4 2026-07-21
CHH7813 Hainan Airlines 3 2026-07-25
CHH7382 - 3 2026-07-17
CHH408 Hainan Airlines 3 2026-05-30
CHH7848 Hainan Airlines 2 2026-07-23
CHH7807 Hainan Airlines 2 2026-05-06
CHH7804 Hainan Airlines 2 2026-07-18
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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CHH7937 PEK → PRG Jul 26, 19:00 UTCJul 26, 19:20 UTC20m
2026-07-26 CHH7806 CAN → PEK Jul 26, 05:00 UTCJul 26, 05:10 UTC10m
2026-07-25 CHH7813 PEK → CAN Jul 25, 12:30 UTCJul 25, 12:55 UTC25m
2026-07-25 CHH7146 URC → PEK Jul 25, 10:10 UTCJul 25, 10:30 UTC20m
2026-07-24 CHH7145 PEK → URC Jul 24, 23:50 UTCJul 25, 00:00 UTC10m
2026-07-24 CHH7938 LAX → PEK Jul 24, 20:40 UTCJul 24, 20:55 UTC15m
2026-07-24 CHH7938 LAX → PEK Jul 24, 12:10 UTCJul 24, 18:10 UTC6h 0m
2026-07-23 CHH7937 PEK → PRG Jul 23, 19:00 UTCJul 24, 01:20 UTC6h 20m
2026-07-23 CHH7848 CTU → PEK Jul 23, 14:40 UTCJul 23, 15:05 UTC25m
2026-07-23 CHH7847 XIY → CAN Jul 23, 08:20 UTCJul 23, 08:40 UTC20m
2026-07-23 CHH7603 PEK → SHA Jul 23, 01:45 UTCJul 23, 01:55 UTC10m
2026-07-22 CHH7938 - Jul 22, 12:10 UTCJul 22, 13:45 UTC1h 35m
2026-07-21 CHH7937 PEK → PRG Jul 21, 18:55 UTCJul 22, 04:10 UTC9h 15m
2026-07-21 CHH7605 PEK → SHA Jul 21, 07:55 UTCJul 21, 08:10 UTC15m
2026-07-21 CHH7277 PEK → HGH Jul 21, 00:20 UTCJul 21, 00:30 UTC10m
2026-07-20 CHH7938 - Jul 20, 20:35 UTCJul 20, 20:55 UTC20m
2026-07-20 CHH7938 - Jul 20, 12:10 UTCJul 20, 18:00 UTC5h 50m
2026-07-19 CHH7937 - Jul 19, 22:30 UTCJul 19, 23:15 UTC45m
2026-07-19 CHH7847 XIY → CAN Jul 19, 08:20 UTCJul 19, 08:35 UTC15m
2026-07-19 CHH7277 - Jul 19, 00:20 UTCJul 19, 00:35 UTC15m
2026-07-18 CHH7279 PEK → SYX Jul 18, 06:15 UTCJul 18, 09:10 UTC2h 55m
2026-07-18 CHH7804 CAN → PEK Jul 18, 04:00 UTCJul 18, 04:15 UTC15m
2026-07-17 CHH7813 - Jul 17, 12:15 UTCJul 17, 12:30 UTC15m
2026-07-17 CHH7281 - Jul 17, 08:25 UTCJul 17, 08:40 UTC15m
2026-07-17 CHH7382 - Jul 17, 00:45 UTCJul 17, 01:05 UTC20m
2026-07-16 CHH752 - Jul 16, 20:35 UTCJul 16, 20:55 UTC20m
2026-07-16 CHH752 - Jul 16, 11:20 UTCJul 16, 18:10 UTC6h 50m
2026-07-15 CHH751 - Jul 15, 19:00 UTCJul 15, 19:10 UTC10m
2026-07-15 CHH7714 - Jul 15, 13:05 UTCJul 15, 13:15 UTC10m
2026-07-15 CHH7703 - Jul 15, 01:50 UTCJul 15, 02:15 UTC25m
2026-07-14 CHH7848 - Jul 14, 08:10 UTCJul 14, 14:45 UTC6h 35m
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

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 Jul 26, 19:20 UTC.
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, CHH7938, CHH752, CHH7603.