Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

780512

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5428 · BOEING 737-800

Hex
780512
Octal
36002422
Decimal
7,865,618
Country
CN
Tail
B-5428
Type
B738
No current signal · last broadcast 6h ago
Flights observed
99
Distinct callsigns
20
Country
CN
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 780512.

Country allocation

The ICAO 24-bit address 780512 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
CHH7877 - 7 2026-06-27
CHH7982 Hainan Airlines 2 2026-06-09
CHH7878 Hainan Airlines 2 2026-06-27
CHH7759 - 2 2026-07-12
CHH7743 Hainan Airlines 2 2026-07-03
CHH7713 Hainan Airlines 2 2026-05-08
CHH7708 Hainan Airlines 2 2026-05-08
CHH7613 Hainan Airlines 2 2026-05-20
CHH7567 Hainan Airlines 2 2026-04-21
CHH7557 - 2 2026-07-14
CHH7394 - 2 2026-07-13
CHH7027 Hainan Airlines 2 2026-05-07
CHH7981 Hainan Airlines 1 2026-06-09
CHH7890 Hainan Airlines 1 2026-05-20
CHH7874 - 1 2026-07-13
CHH7873 - 1 2026-06-29
CHH7872 - 1 2026-06-15
CHH7871 Hainan Airlines 1 2026-06-15
CHH784 Hainan Airlines 1 2026-05-28
CHH783 Hainan Airlines 1 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 CHH6335 - Jul 20, 06:35 UTCJul 20, 06:45 UTC10m
2026-07-20 CHH7762 NGB → SZX Jul 20, 04:35 UTCJul 20, 04:55 UTC20m
2026-07-19 CHH7761 SZX → NGB Jul 19, 23:15 UTCJul 19, 23:30 UTC15m
2026-07-18 CHH7688 - Jul 18, 23:35 UTCJul 19, 12:55 UTC13h 20m
2026-07-18 CHH7028 SZX → HAK Jul 18, 15:25 UTCJul 18, 15:40 UTC15m
2026-07-18 CHH7746 - Jul 18, 13:25 UTCJul 18, 13:35 UTC10m
2026-07-14 CHH7557 - Jul 14, 14:40 UTCJul 14, 14:55 UTC15m
2026-07-14 CHH7722 - Jul 14, 04:00 UTCJul 14, 08:50 UTC4h 50m
2026-07-13 CHH7874 - Jul 13, 09:05 UTCJul 13, 09:20 UTC15m
2026-07-13 CHH7394 - Jul 13, 00:45 UTCJul 13, 05:55 UTC5h 10m
2026-07-12 CHH7760 - Jul 12, 15:55 UTCJul 12, 16:10 UTC15m
2026-07-12 CHH7759 - Jul 12, 08:55 UTCJul 12, 13:30 UTC4h 35m
2026-07-12 CHH7759 - Jul 12, 06:35 UTCJul 12, 06:45 UTC10m
2026-07-04 CHH7271 - Jul 4, 01:00 UTCJul 4, 04:55 UTC3h 55m
2026-07-03 CHH7557 - Jul 3, 17:15 UTCJul 3, 17:25 UTC10m
2026-07-03 CHH7744 - Jul 3, 14:55 UTCJul 3, 15:10 UTC15m
2026-07-03 CHH7743 NGB → CGQ Jul 3, 00:00 UTCJul 3, 00:10 UTC10m
2026-07-02 CHH6206 - Jul 2, 15:20 UTCJul 2, 15:45 UTC25m
2026-07-02 CHH6205 - Jul 2, 09:50 UTCJul 2, 10:00 UTC10m
2026-07-02 CHH7394 - Jul 2, 07:00 UTCJul 2, 07:20 UTC20m
2026-06-30 CHH7397 - Jun 30, 15:45 UTCJun 30, 15:55 UTC10m
2026-06-30 CHH7275 - Jun 30, 07:40 UTCJun 30, 07:50 UTC10m
2026-06-30 CHH7175 - Jun 30, 00:00 UTCJun 30, 00:14 UTC15m
2026-06-29 CHH7873 - Jun 29, 15:34 UTCJun 29, 15:45 UTC10m
2026-06-27 CHH7878 SYX → XIY Jun 27, 12:29 UTCJun 27, 13:04 UTC35m
2026-06-27 CHH7877 - Jun 27, 08:39 UTCJun 27, 09:04 UTC25m
2026-06-26 CHH7877 - Jun 26, 12:50 UTCJun 27, 09:04 UTC20h 15m
2026-06-26 CHH7877 XIY → SYX Jun 26, 08:30 UTCJun 26, 09:00 UTC30m
2026-06-25 CHH7877 XIY → SYX Jun 25, 12:35 UTCJun 26, 09:00 UTC20h 25m
2026-06-25 CHH7878 SYX → XIY Jun 25, 05:09 UTCJun 25, 12:54 UTC7h 45m
2026-06-23 CHH7008 - Jun 23, 05:49 UTCJun 23, 05:59 UTC10m
2026-06-21 CHH7805 - Jun 21, 02:45 UTCJun 21, 03:05 UTC20m
2026-06-20 CHH7607 - Jun 20, 09:05 UTCJun 20, 09:14 UTC10m
2026-06-18 CHH7179 - Jun 18, 04:40 UTCJun 18, 07:55 UTC3h 15m
2026-06-15 CHH7872 - Jun 15, 07:35 UTCJun 15, 07:55 UTC20m
2026-06-15 CHH7871 XIY → SZX Jun 15, 03:24 UTCJun 15, 03:35 UTC10m
2026-06-13 CHH7877 XIY → SYX Jun 13, 08:45 UTCJun 13, 12:50 UTC4h 5m
2026-06-12 CHH7877 XIY → SYX Jun 12, 12:35 UTCJun 13, 12:30 UTC23h 54m
2026-06-12 CHH7877 XIY → SYX Jun 12, 08:50 UTCJun 12, 12:35 UTC3h 45m
2026-06-11 CHH7337 PEK → XIY Jun 11, 14:15 UTCJun 11, 14:35 UTC20m
2026-06-11 CHH7144 KHN → PEK Jun 11, 12:20 UTCJun 11, 12:30 UTC10m
2026-06-11 CHH7143 PEK → KHN Jun 11, 07:35 UTCJun 11, 07:45 UTC10m
2026-06-10 CHH7135 PEK → CSX Jun 10, 23:35 UTCJun 10, 23:45 UTC10m
2026-06-10 CHH7809 PEK → CAN Jun 10, 06:40 UTCJun 10, 07:00 UTC20m
2026-06-09 CHH7982 TPE → CAN Jun 9, 05:10 UTCJun 9, 05:25 UTC15m
2026-06-09 CHH7982 TPE → CAN Jun 9, 04:00 UTCJun 9, 04:30 UTC30m
2026-06-09 CHH7981 CAN → TPE Jun 9, 00:40 UTCJun 9, 02:00 UTC1h 20m
2026-06-08 CHH7807 PEK → CAN Jun 8, 04:50 UTCJun 8, 05:10 UTC20m
2026-06-07 CHH7572 CKG → HAK Jun 7, 08:30 UTCJun 7, 08:40 UTC10m
2026-06-06 CHH7053 HAK → HGH Jun 6, 05:50 UTCJun 6, 06:10 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-5428 page for operator, model, and routing details .

Mode-S 780512 frequently asked

What is Mode-S code 780512?
780512 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5428.
Where is Mode-S 780512 registered?
Mode-S code 780512 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780512 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780512, octal 36002422, decimal 7,865,618.
What flights does 780512 operate?
Mode-S 780512 has broadcast 20 distinct callsigns, including CHH7877, CHH7982, CHH7878, CHH7759, CHH7743.