Apparatus

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sensors Mode-S transponder

781E15

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32AT · AIRBUS A-320neo

Hex
781E15
Octal
36017025
Decimal
7,872,021
Country
CN
Tail
B-32AT
Type
A20N
No current signal · last broadcast 1d ago
Flights observed
47
Distinct callsigns
10
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 781E15.

Country allocation

The ICAO 24-bit address 781E15 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 10 distinct

Callsign Airline Flights Last seen
CGZ7214 - 18 2026-07-15
CGZ7213 - 6 2026-07-15
CGZ703 - 6 2026-07-16
CGZ7244 Colorful Guizhou Airlines 5 2026-05-30
CGZ706 Colorful Guizhou Airlines 3 2026-07-05
CGZ705 Colorful Guizhou Airlines 3 2026-07-05
CGZ7243 Colorful Guizhou Airlines 2 2026-05-19
CGZ704 Colorful Guizhou Airlines 2 2026-06-16
CGZ7148 - 1 2026-07-07
CGZ7105 - 1 2026-07-04

Recent flights last 47

DateFlightRouteTakeoffLandingDuration
2026-07-16 CGZ703 - Jul 16, 16:35 UTCJul 16, 23:20 UTC6h 45m
2026-07-15 CGZ7214 - Jul 15, 13:35 UTCJul 15, 13:45 UTC10m
2026-07-15 CGZ7213 - Jul 15, 11:40 UTCJul 15, 11:50 UTC10m
2026-07-14 CGZ703 - Jul 14, 17:00 UTCJul 14, 23:20 UTC6h 19m
2026-07-13 CGZ7214 - Jul 13, 13:20 UTCJul 13, 13:30 UTC10m
2026-07-12 CGZ7214 - Jul 12, 13:30 UTCJul 12, 13:45 UTC15m
2026-07-09 CGZ7214 - Jul 9, 15:50 UTCJul 9, 16:00 UTC10m
2026-07-07 CGZ7148 - Jul 7, 13:45 UTCJul 7, 14:00 UTC15m
2026-07-05 CGZ706 ICN → KWE Jul 5, 22:05 UTCJul 5, 22:35 UTC30m
2026-07-05 CGZ705 KWE → ICN Jul 5, 19:10 UTCJul 5, 19:35 UTC25m
2026-07-04 CGZ7105 - Jul 4, 01:25 UTCJul 4, 04:30 UTC3h 5m
2026-06-30 CGZ706 ICN → KWE Jun 30, 21:50 UTCJun 30, 22:15 UTC25m
2026-06-30 CGZ705 KWE → ICN Jun 30, 19:15 UTCJun 30, 19:35 UTC20m
2026-06-26 CGZ7214 - Jun 26, 15:05 UTCJun 26, 15:15 UTC10m
2026-06-25 CGZ703 KWE → SGN Jun 25, 16:45 UTCJun 25, 23:34 UTC6h 50m
2026-06-23 CGZ7214 - Jun 23, 14:19 UTCJun 23, 14:29 UTC10m
2026-06-20 CGZ706 ICN → KWE Jun 20, 22:05 UTCJun 20, 22:25 UTC20m
2026-06-20 CGZ705 KWE → ICN Jun 20, 19:19 UTCJun 20, 19:44 UTC25m
2026-06-17 CGZ7214 - Jun 17, 13:50 UTCJun 17, 14:00 UTC10m
2026-06-16 CGZ704 SGN → KWE Jun 16, 17:00 UTCJun 16, 23:15 UTC6h 16m
2026-06-14 CGZ7214 - Jun 14, 14:05 UTCJun 14, 14:15 UTC10m
2026-06-12 CGZ7214 SZX → TFU Jun 12, 13:15 UTCJun 12, 13:30 UTC15m
2026-06-12 CGZ7213 TFU → SZX Jun 12, 11:05 UTCJun 12, 11:15 UTC10m
2026-06-11 CGZ703 KWE → SGN Jun 11, 16:55 UTCJun 11, 23:15 UTC6h 20m
2026-06-10 CGZ7214 SZX → TFU Jun 10, 13:15 UTCJun 10, 13:25 UTC10m
2026-06-07 CGZ7214 SZX → TFU Jun 7, 15:15 UTCJun 7, 15:30 UTC15m
2026-06-06 CGZ704 SGN → KWE Jun 6, 17:54 UTCJun 6, 23:15 UTC5h 20m
2026-06-02 CGZ703 KWE → SGN Jun 2, 16:25 UTCJun 2, 23:25 UTC7h 0m
2026-05-30 CGZ7244 SZX → HIA May 30, 03:05 UTCMay 30, 03:15 UTC10m
2026-05-29 CGZ7214 SZX → TFU May 29, 15:25 UTCMay 29, 15:35 UTC10m
2026-05-28 CGZ703 KWE → SGN May 28, 16:35 UTCMay 28, 23:10 UTC6h 35m
2026-05-26 CGZ7244 SZX → HIA May 26, 03:19 UTCMay 26, 03:30 UTC10m
2026-05-25 CGZ7214 SZX → TFU May 25, 13:25 UTCMay 25, 13:35 UTC10m
2026-05-25 CGZ7213 TFU → SZX May 25, 11:05 UTCMay 25, 11:15 UTC10m
2026-05-24 CGZ7214 SZX → TFU May 24, 14:25 UTCMay 24, 14:35 UTC10m
2026-05-19 CGZ7214 SZX → TFU May 19, 13:50 UTCMay 19, 14:10 UTC20m
2026-05-19 CGZ7243 HIA → SZX May 19, 11:00 UTCMay 19, 11:20 UTC20m
2026-05-14 CGZ7214 SZX → TFU May 14, 15:55 UTCMay 14, 16:10 UTC15m
2026-05-14 CGZ7243 HIA → SZX May 14, 14:20 UTCMay 14, 14:35 UTC15m
2026-05-05 CGZ7244 SZX → HIA May 5, 03:20 UTCMay 5, 03:30 UTC10m
2026-05-02 CGZ7244 SZX → HIA May 2, 03:10 UTCMay 2, 03:20 UTC10m
2026-04-29 CGZ7214 SZX → TFU Apr 29, 15:50 UTCApr 29, 16:05 UTC15m
2026-04-18 CGZ7244 SZX → HIA Apr 18, 04:00 UTCApr 18, 04:15 UTC15m
2026-04-18 CGZ7213 TFU → SZX Apr 18, 01:55 UTCApr 18, 02:05 UTC10m
2026-04-17 CGZ7214 SZX → TFU Apr 17, 16:05 UTCApr 17, 16:15 UTC10m
2026-04-17 CGZ7213 TFU → SZX Apr 17, 14:40 UTCApr 17, 14:50 UTC10m
2026-04-15 CGZ7213 TFU → SZX Apr 15, 12:20 UTCApr 15, 12:30 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-32AT page for operator, model, and routing details .

Mode-S 781E15 frequently asked

What is Mode-S code 781E15?
781E15 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32AT.
Where is Mode-S 781E15 registered?
Mode-S code 781E15 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781E15 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781E15, octal 36017025, decimal 7,872,021.
What flights does 781E15 operate?
Mode-S 781E15 has broadcast 10 distinct callsigns, including CGZ7214, CGZ7213, CGZ703, CGZ7244, CGZ706.