Apparatus

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sensors Mode-S transponder

780818

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6539 · AIRBUS A-330-300

Hex
780818
Octal
36004030
Decimal
7,866,392
Country
CN
Tail
B-6539
Type
A333
No current signal · last broadcast 9d ago
Flights observed
46
Distinct callsigns
20
Country
CN
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S 780818.

Country allocation

The ICAO 24-bit address 780818 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
CHH7335 Hainan Airlines 5 2026-05-20
CHH484 Hainan Airlines 4 2026-05-24
CHH483 Hainan Airlines 4 2026-05-23
CHH7611 Hainan Airlines 3 2026-05-19
CHH7182 Hainan Airlines 3 2026-05-21
CHH7814 Hainan Airlines 2 2026-05-08
CHH7813 Hainan Airlines 2 2026-04-26
CHH7803 Hainan Airlines 2 2026-04-26
CHH7347 Hainan Airlines 2 2026-04-29
CHH7336 Hainan Airlines 2 2026-05-20
CHH7268 Hainan Airlines 2 2026-05-04
CHH7815 Hainan Airlines 1 2026-05-06
CHH7810 Hainan Airlines 1 2026-04-26
CHH7808 Hainan Airlines 1 2026-05-04
CHH7806 Hainan Airlines 1 2026-04-23
CHH7805 Hainan Airlines 1 2026-04-28
CHH7801 Hainan Airlines 1 2026-05-04
CHH7477 Hainan Airlines 1 2026-05-03
CHH7448 Hainan Airlines 1 2026-04-25
CHH7277 Hainan Airlines 1 2026-05-19

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-05-24 CHH484 MEL → HAK May 24, 10:05 UTCMay 24, 18:20 UTC8h 15m
2026-05-23 CHH483 PEK → OVB May 23, 20:15 UTCMay 24, 03:40 UTC7h 25m
2026-05-21 CHH7182 PEK → HAK May 21, 06:10 UTCMay 21, 06:25 UTC15m
2026-05-20 CHH7336 CSX → PEK May 20, 10:45 UTCMay 20, 11:05 UTC20m
2026-05-20 CHH7335 PEK → CSX May 20, 04:10 UTCMay 20, 04:25 UTC15m
2026-05-19 CHH7611 PEK → PVG May 19, 13:10 UTCMay 19, 13:25 UTC15m
2026-05-19 CHH7277 PEK → HGH May 19, 00:40 UTCMay 19, 00:50 UTC10m
2026-05-18 CHH7335 PEK → CSX May 18, 04:15 UTCMay 18, 04:30 UTC15m
2026-05-17 CHH7611 PEK → PVG May 17, 13:25 UTCMay 17, 13:35 UTC10m
2026-05-09 CHH7335 PEK → CSX May 9, 04:25 UTCMay 9, 04:35 UTC10m
2026-05-08 CHH7814 CAN → PEK May 8, 14:10 UTCMay 8, 14:20 UTC10m
2026-05-07 CHH7182 PEK → HAK May 7, 05:20 UTCMay 7, 05:30 UTC10m
2026-05-06 CHH7815 PEK → CAN May 6, 12:50 UTCMay 6, 13:10 UTC20m
2026-05-06 CHH7180 SYX → PEK May 6, 10:30 UTCMay 6, 10:45 UTC15m
2026-05-06 CHH7179 PEK → SYX May 6, 01:55 UTCMay 6, 02:20 UTC25m
2026-05-04 CHH7268 CKG → PEK May 4, 15:30 UTCMay 4, 15:40 UTC10m
2026-05-04 CHH7267 PEK → CKG May 4, 09:55 UTCMay 4, 10:10 UTC15m
2026-05-04 CHH7808 CAN → PEK May 4, 07:40 UTCMay 4, 07:50 UTC10m
2026-05-04 CHH7801 PEK → CAN May 4, 00:50 UTCMay 4, 01:05 UTC15m
2026-05-03 CHH7477 PEK → HGH May 3, 04:15 UTCMay 3, 04:25 UTC10m
2026-05-02 CHH7177 PEK → HGH May 2, 13:15 UTCMay 2, 13:25 UTC10m
2026-05-02 CHH7335 PEK → CSX May 2, 04:05 UTCMay 2, 04:20 UTC15m
2026-05-01 CHH7611 PEK → PVG May 1, 13:25 UTCMay 1, 13:35 UTC10m
2026-05-01 CHH7336 CSX → PEK May 1, 10:30 UTCMay 1, 10:45 UTC15m
2026-05-01 CHH7335 PEK → CSX May 1, 04:30 UTCMay 1, 04:40 UTC10m
2026-04-30 CHH7079 PEK → SYX Apr 30, 00:40 UTCApr 30, 01:00 UTC20m
2026-04-29 CHH7347 PEK → TFU Apr 29, 06:49 UTCApr 29, 07:10 UTC20m
2026-04-28 CHH7805 PEK → CAN Apr 28, 02:55 UTCApr 28, 03:10 UTC15m
2026-04-27 CHH7347 PEK → TFU Apr 27, 06:45 UTCApr 27, 07:10 UTC25m
2026-04-26 CHH7813 PEK → CAN Apr 26, 12:00 UTCApr 26, 12:15 UTC15m
2026-04-26 CHH7810 CAN → PEK Apr 26, 09:55 UTCApr 26, 10:10 UTC15m
2026-04-26 CHH7803 PEK → CAN Apr 26, 01:45 UTCApr 26, 02:05 UTC20m
2026-04-25 CHH7448 TFU → PEK Apr 25, 13:55 UTCApr 25, 14:05 UTC10m
2026-04-24 CHH7813 PEK → CAN Apr 24, 11:45 UTCApr 24, 12:00 UTC15m
2026-04-24 CHH7803 PEK → CAN Apr 24, 01:45 UTCApr 24, 02:10 UTC25m
2026-04-23 CHH7268 CKG → PEK Apr 23, 15:35 UTCApr 23, 15:45 UTC10m
2026-04-23 CHH7806 CAN → PEK Apr 23, 07:55 UTCApr 23, 08:05 UTC10m
2026-04-21 CHH7814 CAN → PEK Apr 21, 14:05 UTCApr 21, 14:15 UTC10m
2026-04-20 CHH7182 PEK → HAK Apr 20, 05:20 UTCApr 20, 05:40 UTC20m
2026-04-19 CHH484 MEL → HAK Apr 19, 09:45 UTCApr 19, 17:20 UTC7h 35m
2026-04-18 CHH483 PEK → OVB Apr 18, 20:05 UTCApr 19, 03:50 UTC7h 45m
2026-04-18 - - Apr 18, 12:50 UTCApr 18, 13:00 UTC10m
2026-04-17 CHH484 MEL → HAK Apr 17, 17:35 UTCApr 17, 18:05 UTC30m
2026-04-17 CHH484 MEL → HAK Apr 17, 10:00 UTCApr 17, 10:35 UTC35m
2026-04-17 CHH483 PEK → OVB Apr 17, 02:35 UTCApr 17, 03:10 UTC35m
2026-04-16 CHH483 PEK → OVB Apr 16, 19:55 UTCApr 16, 20:25 UTC30m

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-6539 page for operator, model, and routing details .

Mode-S 780818 frequently asked

What is Mode-S code 780818?
780818 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6539.
Where is Mode-S 780818 registered?
Mode-S code 780818 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780818 broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780818, octal 36004030, decimal 7,866,392.
What flights does 780818 operate?
Mode-S 780818 has broadcast 20 distinct callsigns, including CHH7335, CHH484, CHH483, CHH7611, CHH7182.