Apparatus

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sensors Mode-S transponder

780C17

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1948 · BOEING 737-800

Hex
780C17
Octal
36006027
Decimal
7,867,415
Country
CN
Tail
B-1948
Type
B738
No current signal · last broadcast 19h ago
Flights observed
47
Distinct callsigns
20
Country
CN
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 780C17.

Country allocation

The ICAO 24-bit address 780C17 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
CSH802 - 7 2026-07-14
CSH801 - 7 2026-07-13
CSH847 - 5 2026-07-12
CSH9559 - 4 2026-07-19
CSH848 - 3 2026-07-12
CSH9487 Shanghai Airlines 2 2026-07-26
CSH9469 - 2 2026-05-15
CSH9435 Shanghai Airlines 2 2026-06-05
CSH7252 Shanghai Airlines 2 2026-07-24
CSH9539 Shanghai Airlines 1 2026-04-18
CSH9497 Shanghai Airlines 1 2026-04-30
CSH9358 Shanghai Airlines 1 2026-04-27
CSH9357 Shanghai Airlines 1 2026-04-27
CSH9136 - 1 2026-06-24
CSH9130 Shanghai Airlines 1 2026-07-21
CSH840 - 1 2026-06-23
CSH839 - 1 2026-06-23
CSH834 - 1 2026-07-05
CSH833 - 1 2026-07-04
CSH827 Shanghai Airlines 1 2026-05-12

Recent flights last 47

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSH9487 CGQ → NGB Jul 26, 02:15 UTCJul 26, 03:00 UTC45m
2026-07-25 CSH9487 CGQ → NGB Jul 25, 04:20 UTCJul 26, 03:00 UTC22h 40m
2026-07-24 CSH7252 BKI → PVG Jul 24, 14:20 UTCJul 25, 04:30 UTC14h 10m
2026-07-24 CSH7252 BKI → PVG Jul 24, 12:10 UTCJul 24, 12:25 UTC15m
2026-07-24 CSH7251 PVG → BKI Jul 24, 03:15 UTCJul 24, 11:00 UTC7h 45m
2026-07-21 CSH9130 HLD → PVG Jul 21, 07:25 UTCJul 21, 12:25 UTC5h 0m
2026-07-19 CSH9559 - Jul 19, 01:05 UTCJul 19, 04:25 UTC3h 20m
2026-07-18 CSH9559 - Jul 18, 06:20 UTCJul 19, 04:25 UTC22h 5m
2026-07-14 CSH802 - Jul 14, 04:25 UTCJul 14, 05:00 UTC35m
2026-07-13 CSH801 - Jul 13, 11:30 UTCJul 14, 03:05 UTC15h 35m
2026-07-12 CSH848 - Jul 12, 13:30 UTCJul 12, 13:40 UTC10m
2026-07-12 CSH847 - Jul 12, 11:40 UTCJul 12, 11:55 UTC15m
2026-07-12 CSH847 - Jul 12, 09:30 UTCJul 12, 09:40 UTC10m
2026-07-09 CSH848 - Jul 9, 22:25 UTCJul 10, 11:30 UTC13h 5m
2026-07-09 CSH847 - Jul 9, 18:20 UTCJul 9, 20:25 UTC2h 5m
2026-07-05 CSH834 - Jul 5, 09:55 UTCJul 5, 12:00 UTC2h 5m
2026-07-04 CSH833 - Jul 4, 22:20 UTCJul 5, 08:00 UTC9h 40m
2026-07-04 CSH847 - Jul 4, 18:20 UTCJul 4, 20:40 UTC2h 20m
2026-06-29 CSH802 - Jun 29, 04:25 UTCJun 29, 04:39 UTC15m
2026-06-29 CSH801 - Jun 29, 02:45 UTCJun 29, 03:05 UTC20m
2026-06-25 CSH802 - Jun 25, 05:00 UTCJun 25, 05:25 UTC25m
2026-06-25 CSH801 - Jun 25, 03:24 UTCJun 25, 03:50 UTC25m
2026-06-24 CSH9136 - Jun 24, 12:50 UTCJun 24, 13:10 UTC20m
2026-06-23 CSH840 - Jun 23, 15:09 UTCJun 24, 05:20 UTC14h 10m
2026-06-23 CSH839 - Jun 23, 11:10 UTCJun 23, 13:24 UTC2h 15m
2026-06-21 CSH848 - Jun 21, 22:20 UTCJun 22, 00:44 UTC2h 25m
2026-06-21 CSH847 - Jun 21, 12:44 UTCJun 21, 20:14 UTC7h 30m
2026-06-18 CSH9559 - Jun 18, 09:05 UTCJun 18, 09:15 UTC10m
2026-06-15 CSH806 - Jun 15, 07:00 UTCJun 15, 07:15 UTC15m
2026-06-05 CSH9435 CGO → CGQ Jun 5, 04:25 UTCJun 5, 04:40 UTC15m
2026-06-04 CSH802 TSA → PVG Jun 4, 04:30 UTCJun 4, 04:40 UTC10m
2026-06-04 CSH801 PVG → TSA Jun 4, 02:50 UTCJun 4, 03:00 UTC10m
2026-05-24 CSH802 TSA → PVG May 24, 04:15 UTCMay 24, 12:20 UTC8h 5m
2026-05-24 CSH801 PVG → TSA May 24, 02:15 UTCMay 24, 02:50 UTC35m
2026-05-18 CSH9559 - May 18, 01:15 UTCMay 18, 05:30 UTC4h 15m
2026-05-15 CSH9469 - May 15, 08:50 UTCMay 15, 11:20 UTC2h 30m
2026-05-12 CSH827 PVG → ICN May 12, 07:45 UTCMay 12, 08:20 UTC35m
2026-05-04 CSH9435 CGO → CGQ May 4, 04:34 UTCMay 4, 04:50 UTC15m
2026-05-03 CSH802 TSA → PVG May 3, 04:15 UTCMay 3, 04:45 UTC30m
2026-05-03 CSH801 PVG → TSA May 3, 02:15 UTCMay 3, 03:05 UTC50m
2026-04-30 CSH9497 WUH → DSN Apr 30, 11:20 UTCApr 30, 11:30 UTC10m
2026-04-27 CSH9358 ZUH → PVG Apr 27, 12:05 UTCApr 27, 12:15 UTC10m
2026-04-27 CSH9357 PVG → ZUH Apr 27, 10:00 UTCApr 27, 10:10 UTC10m
2026-04-27 CSH802 TSA → PVG Apr 27, 04:15 UTCApr 27, 08:40 UTC4h 25m
2026-04-26 CSH801 PVG → TSA Apr 26, 12:20 UTCApr 27, 02:50 UTC14h 30m
2026-04-24 CSH9469 - Apr 24, 08:55 UTCApr 24, 12:05 UTC3h 10m
2026-04-18 CSH9539 PVG → SYX Apr 18, 04:10 UTCApr 18, 08:00 UTC3h 50m

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-1948 page for operator, model, and routing details .

Mode-S 780C17 frequently asked

What is Mode-S code 780C17?
780C17 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1948.
Where is Mode-S 780C17 registered?
Mode-S code 780C17 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780C17 broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780C17, octal 36006027, decimal 7,867,415.
What flights does 780C17 operate?
Mode-S 780C17 has broadcast 20 distinct callsigns, including CSH802, CSH801, CSH847, CSH9559, CSH848.