sensors Mode-S transponder

78224D

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32LY · AIRBUS A-321neo

Hex
78224D
Octal
36021115
Decimal
7,873,101
Country
CN
Tail
B-32LY
Type
A21N
No current signal · last broadcast 4h ago
Flights observed
49
Distinct callsigns
12
Country
CN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 78224D.

Country allocation

The ICAO 24-bit address 78224D 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 12 distinct

Callsign Airline Flights Last seen
CHH7528 Hainan Airlines 10 2026-06-04
CHH7579 Hainan Airlines 8 2026-05-17
CHH7384 Hainan Airlines 5 2026-05-19
CHH7374 Hainan Airlines 5 2026-06-03
CHH7280 Hainan Airlines 5 2026-05-01
CHH7527 Hainan Airlines 4 2026-04-29
CHH7373 Hainan Airlines 4 2026-06-02
CHH7898 Hainan Airlines 2 2026-05-27
CHH7897 Hainan Airlines 2 2026-05-29
CHH7383 Hainan Airlines 2 2026-05-21
CHH7146 Hainan Airlines 1 2026-05-04
CHH7145 Hainan Airlines 1 2026-05-03

Recent flights last 49

DateFlightRouteTakeoffLandingDuration
2026-06-04 CHH7528 HRB → SYX Jun 4, 03:00 UTCJun 4, 13:10 UTC10h 10m
2026-06-03 CHH7528 HRB → SYX Jun 3, 13:50 UTCJun 4, 13:10 UTC23h 20m
2026-06-03 CHH7374 HFE → SYX Jun 3, 09:20 UTCJun 4, 05:50 UTC20h 30m
2026-06-03 CHH7374 HFE → SYX Jun 3, 02:10 UTCJun 3, 14:30 UTC12h 20m
2026-06-02 CHH7373 SYX → HFE Jun 2, 13:50 UTCJun 3, 09:20 UTC19h 30m
2026-06-02 CHH7373 SYX → HFE Jun 2, 01:40 UTCJun 2, 14:05 UTC12h 25m
2026-06-01 CHH7374 HFE → SYX Jun 1, 13:30 UTCJun 2, 02:25 UTC12h 55m
2026-06-01 CHH7373 SYX → HFE Jun 1, 01:35 UTCJun 1, 14:10 UTC12h 35m
2026-05-31 CHH7374 HFE → SYX May 31, 13:35 UTCJun 1, 02:20 UTC12h 45m
2026-05-30 CHH7528 HRB → SYX May 30, 02:45 UTCMay 30, 12:45 UTC10h 0m
2026-05-29 CHH7897 XIY → SYX May 29, 00:15 UTCMay 29, 16:00 UTC15h 45m
2026-05-27 CHH7897 XIY → SYX May 27, 23:55 UTCMay 28, 16:15 UTC16h 20m
2026-05-27 CHH7898 SYX → XIY May 27, 13:45 UTCMay 28, 00:25 UTC10h 40m
2026-05-27 CHH7898 SYX → XIY May 27, 02:24 UTCMay 28, 00:25 UTC22h 0m
2026-05-26 CHH7374 HFE → SYX May 26, 13:29 UTCMay 27, 02:29 UTC13h 0m
2026-05-26 CHH7373 SYX → HFE May 26, 02:10 UTCMay 26, 13:45 UTC11h 35m
2026-05-21 CHH7383 SYX → HGH May 21, 10:00 UTCMay 21, 10:45 UTC45m
2026-05-20 CHH7383 SYX → HGH May 20, 09:50 UTCMay 20, 10:05 UTC15m
2026-05-19 CHH7384 HGH → SYX May 19, 14:20 UTCMay 20, 10:05 UTC19h 46m
2026-05-19 CHH7384 HGH → SYX May 19, 10:00 UTCMay 19, 14:40 UTC4h 40m
2026-05-18 CHH7384 HGH → SYX May 18, 15:35 UTCMay 19, 14:40 UTC23h 4m
2026-05-18 CHH7384 HGH → SYX May 18, 11:20 UTCMay 19, 10:00 UTC22h 39m
2026-05-18 CHH7384 HGH → SYX May 18, 11:10 UTCMay 18, 15:50 UTC4h 40m
2026-05-17 CHH7579 PEK → SYX May 17, 13:25 UTCMay 18, 11:20 UTC21h 55m
2026-05-09 CHH7528 HRB → SYX May 9, 05:45 UTCMay 9, 10:30 UTC4h 45m
2026-05-08 CHH7528 HRB → SYX May 8, 10:35 UTCMay 9, 06:00 UTC19h 25m
2026-05-08 CHH7528 HRB → SYX May 8, 05:59 UTCMay 8, 10:59 UTC5h 0m
2026-05-07 CHH7528 HRB → SYX May 7, 13:20 UTCMay 8, 10:59 UTC21h 40m
2026-05-06 CHH7528 HRB → SYX May 6, 05:15 UTCMay 6, 10:25 UTC5h 10m
2026-05-05 CHH7528 HRB → SYX May 5, 13:35 UTCMay 6, 10:25 UTC20h 50m
2026-05-04 CHH7146 URC → PEK May 4, 09:10 UTCMay 4, 09:25 UTC15m
2026-05-03 CHH7145 PEK → URC May 3, 23:50 UTCMay 4, 00:10 UTC20m
2026-05-02 CHH7579 PEK → SYX May 2, 13:25 UTCMay 2, 13:45 UTC20m
2026-05-01 CHH7579 PEK → SYX May 1, 13:40 UTCMay 1, 14:00 UTC20m
2026-05-01 CHH7280 SYX → PEK May 1, 11:40 UTCMay 1, 11:55 UTC15m
2026-04-29 CHH7527 SYX → HRB Apr 29, 15:25 UTCApr 30, 10:30 UTC19h 4m
2026-04-26 CHH7579 PEK → SYX Apr 26, 13:40 UTCApr 26, 13:55 UTC15m
2026-04-25 CHH7527 SYX → HRB Apr 25, 05:40 UTCApr 25, 10:20 UTC4h 40m
2026-04-24 CHH7528 HRB → SYX Apr 24, 09:50 UTCApr 25, 06:00 UTC20h 10m
2026-04-24 CHH7527 SYX → HRB Apr 24, 05:30 UTCApr 24, 10:15 UTC4h 45m
2026-04-23 CHH7527 SYX → HRB Apr 23, 13:35 UTCApr 24, 10:15 UTC20h 39m
2026-04-23 CHH7280 SYX → PEK Apr 23, 11:40 UTCApr 23, 11:55 UTC15m
2026-04-22 CHH7579 PEK → SYX Apr 22, 13:35 UTCApr 22, 13:45 UTC10m
2026-04-21 CHH7579 - Apr 21, 13:35 UTCApr 21, 13:50 UTC15m
2026-04-21 CHH7280 SYX → PEK Apr 21, 11:45 UTCApr 21, 11:55 UTC10m
2026-04-20 CHH7579 - Apr 20, 13:30 UTCApr 20, 13:45 UTC15m
2026-04-20 CHH7280 SYX → PEK Apr 20, 11:35 UTCApr 20, 11:45 UTC10m
2026-04-19 CHH7579 - Apr 19, 13:25 UTCApr 19, 13:50 UTC25m
2026-04-18 CHH7280 SYX → PEK Apr 18, 11:50 UTCApr 18, 12:00 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-32LY page for operator, model, and routing details .

Mode-S 78224D frequently asked

What is Mode-S code 78224D?
78224D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32LY.
Where is Mode-S 78224D registered?
Mode-S code 78224D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78224D broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78224D, octal 36021115, decimal 7,873,101.
What flights does 78224D operate?
Mode-S 78224D has broadcast 12 distinct callsigns, including CHH7528, CHH7579, CHH7384, CHH7374, CHH7280.