Apparatus

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sensors Mode-S transponder

780459

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-7399 · BOEING 737-800

Hex
780459
Octal
36002131
Decimal
7,865,433
Country
CN
Tail
B-7399
Type
B738
No current signal · last broadcast 5d ago
Flights observed
114
Distinct callsigns
20
Country
CN
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 780459.

Country allocation

The ICAO 24-bit address 780459 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
CHH7235 - 3 2026-07-09
CHH7883 - 2 2026-06-29
CHH7776 Hainan Airlines 2 2026-06-10
CHH7774 Hainan Airlines 2 2026-06-24
CHH7773 - 2 2026-06-24
CHH7752 Hainan Airlines 2 2026-05-06
CHH7751 Hainan Airlines 2 2026-05-05
CHH7746 - 2 2026-05-03
CHH7745 - 2 2026-05-03
CHH7735 Hainan Airlines 2 2026-05-07
CHH7713 Hainan Airlines 2 2026-06-08
CHH7698 - 2 2026-06-19
CHH7547 - 2 2026-06-29
CHH7528 - 2 2026-07-11
CHH7398 Hainan Airlines 2 2026-05-04
CHH7310 Hainan Airlines 2 2026-05-26
CHH7275 - 2 2026-06-25
CHH7238 Hainan Airlines 2 2026-05-20
CHH7237 Hainan Airlines 2 2026-05-20
CHH7234 - 2 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CHH7370 - Jul 25, 00:45 UTCJul 25, 04:05 UTC3h 20m
2026-07-24 CHH7120 PVG → HAK Jul 24, 09:10 UTCJul 24, 16:55 UTC7h 45m
2026-07-23 CHH7215 HAK → NKG Jul 23, 04:30 UTCJul 23, 04:40 UTC10m
2026-07-23 CHH7006 CAN → HAK Jul 23, 01:40 UTCJul 23, 01:50 UTC10m
2026-07-21 CHH6341 - Jul 21, 01:20 UTCJul 21, 01:35 UTC15m
2026-07-20 CHH7134 - Jul 20, 18:40 UTCJul 20, 19:00 UTC20m
2026-07-20 CHH7133 - Jul 20, 15:35 UTCJul 20, 16:15 UTC40m
2026-07-20 CHH7808 - Jul 20, 09:50 UTCJul 20, 10:00 UTC10m
2026-07-20 CHH7801 - Jul 20, 00:55 UTCJul 20, 01:15 UTC20m
2026-07-18 CHH6246 - Jul 18, 09:50 UTCJul 18, 10:10 UTC20m
2026-07-15 CHH7654 - Jul 15, 12:55 UTCJul 15, 16:00 UTC3h 5m
2026-07-15 CHH720 - Jul 15, 10:05 UTCJul 15, 10:20 UTC15m
2026-07-15 CHH719 - Jul 15, 07:30 UTCJul 15, 07:50 UTC20m
2026-07-14 CHH7234 - Jul 14, 06:05 UTCJul 14, 06:40 UTC35m
2026-07-13 CHH7234 - Jul 13, 07:01 UTCJul 13, 07:40 UTC40m
2026-07-12 CHH7668 - Jul 12, 05:05 UTCJul 12, 09:10 UTC4h 5m
2026-07-11 CHH7528 - Jul 11, 10:25 UTCJul 12, 09:10 UTC22h 45m
2026-07-11 CHH7528 - Jul 11, 06:20 UTCJul 12, 05:10 UTC22h 50m
2026-07-11 CHH7308 - Jul 11, 00:35 UTCJul 11, 00:45 UTC10m
2026-07-10 - - Jul 10, 16:30 UTCJul 10, 16:45 UTC15m
2026-07-10 CHH7809 - Jul 10, 06:50 UTCJul 10, 07:05 UTC15m
2026-07-09 CHH7185 - Jul 9, 23:20 UTCJul 9, 23:40 UTC20m
2026-07-09 CHH7134 - Jul 9, 15:30 UTCJul 9, 15:40 UTC10m
2026-07-09 CHH7133 - Jul 9, 12:25 UTCJul 9, 12:50 UTC25m
2026-07-09 CHH7236 - Jul 9, 09:40 UTCJul 9, 09:50 UTC10m
2026-07-09 CHH7235 - Jul 9, 03:35 UTCJul 9, 03:50 UTC15m
2026-07-08 CHH7054 - Jul 8, 02:45 UTCJul 8, 06:35 UTC3h 50m
2026-07-07 CHH7177 - Jul 7, 15:50 UTCJul 7, 16:00 UTC10m
2026-07-04 CHH7877 - Jul 4, 09:25 UTCJul 4, 12:50 UTC3h 25m
2026-06-30 CHH7337 - Jun 30, 15:20 UTCJun 30, 15:40 UTC20m
2026-06-30 CHH7247 - Jun 30, 05:05 UTCJun 30, 05:35 UTC30m
2026-06-29 CHH7547 - Jun 29, 12:29 UTCJun 29, 12:49 UTC20m
2026-06-29 CHH7883 - Jun 29, 00:05 UTCJun 29, 00:24 UTC20m
2026-06-28 CHH7194 - Jun 28, 17:44 UTCJun 28, 18:10 UTC25m
2026-06-28 CHH7193 - Jun 28, 14:14 UTCJun 28, 14:30 UTC15m
2026-06-28 CHH7248 - Jun 28, 06:55 UTCJun 28, 07:05 UTC10m
2026-06-28 CHH7147 - Jun 28, 00:15 UTCJun 28, 00:30 UTC15m
2026-06-27 CHH7716 - Jun 27, 13:40 UTCJun 27, 13:49 UTC10m
2026-06-27 CHH7738 NNY → SZX Jun 27, 03:34 UTCJun 27, 03:44 UTC10m
2026-06-26 CHH7737 - Jun 26, 23:00 UTCJun 26, 23:09 UTC10m
2026-06-25 CHH7761 - Jun 25, 22:34 UTCJun 25, 22:45 UTC10m
2026-06-25 CHH7275 - Jun 25, 06:44 UTCJun 25, 07:00 UTC15m
2026-06-24 CHH7739 - Jun 24, 22:25 UTCJun 24, 22:35 UTC10m
2026-06-24 CHH7774 KWE → SZX Jun 24, 17:10 UTCJun 24, 17:20 UTC10m
2026-06-24 CHH7773 - Jun 24, 11:59 UTCJun 24, 12:09 UTC10m
2026-06-22 CHH7289 PEK → KWE Jun 22, 23:35 UTCJun 23, 11:40 UTC12h 5m
2026-06-21 CHH7535 PEK → CSX Jun 21, 15:09 UTCJun 22, 03:54 UTC12h 45m
2026-06-21 CHH7638 - Jun 21, 06:40 UTCJun 21, 06:50 UTC10m
2026-06-21 CHH7629 - Jun 21, 04:04 UTCJun 21, 04:24 UTC20m
2026-06-20 CHH7769 - Jun 20, 23:59 UTCJun 21, 00:14 UTC15m

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-7399 page for operator, model, and routing details .

Mode-S 780459 frequently asked

What is Mode-S code 780459?
780459 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-7399.
Where is Mode-S 780459 registered?
Mode-S code 780459 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780459 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780459, octal 36002131, decimal 7,865,433.
What flights does 780459 operate?
Mode-S 780459 has broadcast 20 distinct callsigns, including CHH7235, CHH7883, CHH7776, CHH7774, CHH7773.