Apparatus

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sensors Mode-S transponder

780E2A

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6061 · BOEING 737-800

Hex
780E2A
Octal
36007052
Decimal
7,867,946
Country
CN
Tail
B-6061
Type
B738
No current signal · last broadcast 15h ago
Flights observed
43
Distinct callsigns
20
Country
CN
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 780E2A.

Country allocation

The ICAO 24-bit address 780E2A 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
CHH7322 Hainan Airlines 4 2026-05-01
CHH7987 Hainan Airlines 3 2026-05-29
CHH7988 Hainan Airlines 2 2026-05-29
CHH7982 Hainan Airlines 2 2026-05-28
CHH7741 Hainan Airlines 2 2026-04-24
CHH7721 Hainan Airlines 2 2026-05-03
CHH7698 Hainan Airlines 2 2026-04-22
CHH7688 Hainan Airlines 2 2026-05-09
CHH7026 Hainan Airlines 2 2026-05-04
CHH439 Hainan Airlines 2 2026-05-26
CHH7981 Hainan Airlines 1 2026-05-28
CHH7815 Hainan Airlines 1 2026-05-26
CHH7742 Hainan Airlines 1 2026-04-23
CHH7732 Hainan Airlines 1 2026-04-18
CHH7725 Hainan Airlines 1 2026-04-30
CHH7654 - 1 2026-04-16
CHH7648 Hainan Airlines 1 2026-05-08
CHH748 Hainan Airlines 1 2026-05-05
CHH7256 Hainan Airlines 1 2026-05-03
CHH7255 Hainan Airlines 1 2026-04-17

Recent flights last 43

DateFlightRouteTakeoffLandingDuration
2026-05-29 CHH7082 PEK → HAK May 29, 11:30 UTCMay 29, 11:40 UTC10m
2026-05-29 CHH7988 TPE → PEK May 29, 05:20 UTCMay 29, 05:40 UTC20m
2026-05-29 CHH7987 PEK → TPE May 29, 02:10 UTCMay 29, 02:45 UTC35m
2026-05-28 CHH7987 PEK → TPE May 28, 23:55 UTCMay 29, 00:05 UTC10m
2026-05-28 CHH7982 TPE → CAN May 28, 05:00 UTCMay 28, 05:10 UTC10m
2026-05-28 CHH7982 TPE → CAN May 28, 04:00 UTCMay 28, 04:30 UTC30m
2026-05-28 CHH7981 CAN → TPE May 28, 00:15 UTCMay 28, 01:50 UTC1h 35m
2026-05-26 CHH7815 PEK → CAN May 26, 12:40 UTCMay 26, 13:00 UTC20m
2026-05-26 CHH440 NRT → PEK May 26, 05:10 UTCMay 26, 07:19 UTC2h 10m
2026-05-26 CHH439 PEK → NRT May 26, 00:35 UTCMay 26, 02:44 UTC2h 10m
2026-05-25 CHH439 PEK → NRT May 25, 23:35 UTCMay 25, 23:45 UTC10m
2026-05-24 CHH7043 HAK → TNA May 24, 02:05 UTCMay 24, 02:15 UTC10m
2026-05-21 CHH7185 PEK → YIH May 21, 23:05 UTCMay 21, 23:30 UTC25m
2026-05-15 CHH7988 TPE → PEK May 15, 05:30 UTCMay 15, 06:00 UTC30m
2026-05-15 CHH7987 PEK → TPE May 15, 02:25 UTCMay 15, 03:05 UTC40m
2026-05-09 CHH7688 NGB → HAK May 9, 09:45 UTCMay 10, 02:45 UTC17h 0m
2026-05-08 CHH7688 NGB → HAK May 8, 23:45 UTCMay 9, 13:10 UTC13h 25m
2026-05-08 CHH7648 SHE → HAK May 8, 11:19 UTCMay 9, 10:05 UTC22h 45m
2026-05-06 CHH7068 HRB → WUH May 6, 02:40 UTCMay 6, 18:15 UTC15h 34m
2026-05-05 CHH7067 HAK → WUH May 5, 14:05 UTCMay 6, 11:05 UTC21h 0m
2026-05-05 CHH748 SIN → HAK May 5, 04:15 UTCMay 5, 14:20 UTC10h 5m
2026-05-04 CHH7026 SZX → HAK May 4, 13:45 UTCMay 4, 14:00 UTC15m
2026-05-03 CHH7256 NKG → SZX May 3, 18:00 UTCMay 3, 18:14 UTC15m
2026-05-03 CHH7721 SZX → PVG May 3, 01:40 UTCMay 3, 01:50 UTC10m
2026-05-01 CHH7322 PVG → SYX May 1, 23:50 UTCMay 2, 10:30 UTC10h 41m
2026-05-01 CHH7322 PVG → SYX May 1, 04:35 UTCMay 2, 04:30 UTC23h 55m
2026-05-01 CHH7322 PVG → SYX May 1, 00:50 UTCMay 2, 00:15 UTC23h 25m
2026-04-30 CHH7322 PVG → SYX Apr 30, 23:45 UTCMay 1, 04:40 UTC4h 55m
2026-04-30 CHH7725 SZX → PVG Apr 30, 04:55 UTCApr 30, 05:05 UTC10m
2026-04-24 CHH7741 SZX → KWE Apr 24, 04:20 UTCApr 24, 04:35 UTC15m
2026-04-23 CHH7741 SZX → KWE Apr 23, 06:40 UTCApr 23, 07:05 UTC25m
2026-04-23 CHH7742 KWE → SZX Apr 23, 02:05 UTCApr 23, 02:15 UTC10m
2026-04-22 CHH7698 NKG → SYX Apr 22, 05:05 UTCApr 22, 09:35 UTC4h 30m
2026-04-19 CHH7026 - Apr 19, 13:30 UTCApr 19, 13:40 UTC10m
2026-04-19 CHH7175 SZX → TFU Apr 19, 00:10 UTCApr 19, 00:20 UTC10m
2026-04-18 CHH7732 SZX → SYX Apr 18, 15:00 UTCApr 18, 15:10 UTC10m
2026-04-17 CHH7255 SZX → NKG Apr 17, 12:55 UTCApr 17, 13:05 UTC10m
2026-04-17 CHH7721 SZX → PVG Apr 17, 01:50 UTCApr 17, 02:00 UTC10m
2026-04-16 CHH7654 - Apr 16, 15:25 UTCApr 16, 15:45 UTC20m
2026-04-16 CHH7078 KHN → HAK Apr 16, 09:45 UTCApr 16, 10:09 UTC25m
2026-04-15 CHH7698 NKG → SYX Apr 15, 05:15 UTCApr 15, 05:35 UTC20m
2026-04-13 CHH7120 - Apr 13, 11:20 UTCApr 13, 11:35 UTC15m
2026-04-13 CHH7119 HAK → PVG Apr 13, 05:45 UTCApr 13, 05:55 UTC10m

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-6061 page for operator, model, and routing details .

Mode-S 780E2A frequently asked

What is Mode-S code 780E2A?
780E2A is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6061.
Where is Mode-S 780E2A registered?
Mode-S code 780E2A is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780E2A broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780E2A, octal 36007052, decimal 7,867,946.
What flights does 780E2A operate?
Mode-S 780E2A has broadcast 20 distinct callsigns, including CHH7322, CHH7987, CHH7988, CHH7982, CHH7741.