Apparatus

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sensors Mode-S transponder

781429

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-300S · AIRBUS A-320

Hex
781429
Octal
36012051
Decimal
7,869,481
Country
CN
Tail
B-300S
Type
A320
No current signal · last broadcast Jul 26, 13:40 UTC
Flights observed
90
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 13:40 UTC

Last known position

Most recent position reported by Mode-S 781429.

Country allocation

The ICAO 24-bit address 781429 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
GCR7963 - 13 2026-07-19
GCR6500 - 13 2026-07-19
GCR6499 - 11 2026-07-19
GCR7964 - 10 2026-07-19
GCR7539 Tianjin Airlines 8 2026-06-09
GCR7611 Tianjin Airlines 6 2026-05-06
GCR6453 - 6 2026-06-26
GCR6454 - 4 2026-06-24
GCR7674 Tianjin Airlines 3 2026-04-28
GCR7727 Tianjin Airlines 2 2026-05-26
GCR7578 Tianjin Airlines 2 2026-07-26
GCR7978 Tianjin Airlines 1 2026-04-22
GCR7977 Tianjin Airlines 1 2026-04-22
GCR7910 - 1 2026-04-14
GCR7830 - 1 2026-06-01
GCR7751 - 1 2026-06-27
GCR7673 Tianjin Airlines 1 2026-04-18
GCR7635 Tianjin Airlines 1 2026-05-02
GCR7584 Tianjin Airlines 1 2026-04-30
GCR7577 Tianjin Airlines 1 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GCR7578 TSN → URC Jul 26, 13:20 UTCJul 26, 13:40 UTC20m
2026-07-26 GCR7577 URC → TSN Jul 26, 02:10 UTCJul 26, 02:35 UTC25m
2026-07-21 GCR7578 - Jul 21, 14:10 UTCJul 21, 14:30 UTC20m
2026-07-19 GCR7964 - Jul 19, 19:45 UTCJul 19, 22:40 UTC2h 55m
2026-07-19 GCR7963 - Jul 19, 15:25 UTCJul 19, 18:20 UTC2h 55m
2026-07-19 GCR6500 - Jul 19, 07:40 UTCJul 19, 07:50 UTC10m
2026-07-19 GCR6499 - Jul 19, 05:25 UTCJul 19, 05:40 UTC15m
2026-07-18 GCR6500 - Jul 18, 08:20 UTCJul 18, 08:35 UTC15m
2026-07-18 GCR6499 - Jul 18, 06:05 UTCJul 18, 06:20 UTC15m
2026-07-17 GCR7964 - Jul 17, 22:40 UTCJul 17, 23:05 UTC25m
2026-07-17 GCR7964 - Jul 17, 20:00 UTCJul 17, 20:29 UTC30m
2026-07-17 GCR7963 - Jul 17, 15:15 UTCJul 17, 18:10 UTC2h 55m
2026-07-17 GCR6500 - Jul 17, 08:54 UTCJul 17, 09:10 UTC15m
2026-07-17 GCR6499 - Jul 17, 05:35 UTCJul 17, 05:50 UTC15m
2026-07-16 GCR6500 - Jul 16, 08:05 UTCJul 16, 08:15 UTC10m
2026-07-16 GCR6499 - Jul 16, 05:55 UTCJul 16, 06:10 UTC15m
2026-07-15 GCR7964 - Jul 15, 19:45 UTCJul 15, 22:50 UTC3h 5m
2026-07-15 GCR7963 - Jul 15, 15:20 UTCJul 15, 18:05 UTC2h 45m
2026-07-15 GCR6500 - Jul 15, 07:50 UTCJul 15, 08:00 UTC10m
2026-07-15 GCR6499 - Jul 15, 05:25 UTCJul 15, 05:40 UTC15m
2026-07-14 GCR6500 - Jul 14, 07:55 UTCJul 14, 08:10 UTC15m
2026-07-13 GCR7964 - Jul 13, 20:20 UTCJul 14, 06:00 UTC9h 40m
2026-07-13 GCR7963 - Jul 13, 15:55 UTCJul 13, 18:45 UTC2h 50m
2026-07-12 GCR7963 - Jul 12, 22:40 UTCJul 13, 18:45 UTC20h 5m
2026-07-12 GCR7963 - Jul 12, 20:20 UTCJul 13, 18:45 UTC22h 25m
2026-07-12 GCR7964 - Jul 12, 20:01 UTCJul 13, 18:15 UTC22h 15m
2026-07-12 GCR7963 - Jul 12, 15:15 UTCJul 12, 18:10 UTC2h 55m
2026-07-12 GCR6500 - Jul 12, 07:31 UTCJul 12, 07:45 UTC15m
2026-07-12 GCR6499 - Jul 12, 05:25 UTCJul 12, 05:40 UTC15m
2026-07-10 GCR7964 - Jul 10, 19:55 UTCJul 10, 22:50 UTC2h 55m
2026-07-10 GCR7963 - Jul 10, 15:50 UTCJul 10, 18:35 UTC2h 45m
2026-07-10 GCR6500 - Jul 10, 07:55 UTCJul 10, 08:10 UTC15m
2026-07-10 GCR6499 - Jul 10, 05:55 UTCJul 10, 06:15 UTC20m
2026-07-08 GCR7545 - Jul 8, 03:45 UTCJul 8, 06:50 UTC3h 5m
2026-07-06 GCR7546 - Jul 6, 06:40 UTCJul 6, 06:55 UTC15m
2026-07-03 GCR7964 - Jul 3, 19:45 UTCJul 3, 22:50 UTC3h 5m
2026-07-03 GCR7963 - Jul 3, 15:15 UTCJul 3, 18:15 UTC3h 0m
2026-07-03 GCR6500 - Jul 3, 08:10 UTCJul 3, 08:25 UTC15m
2026-07-03 GCR6499 - Jul 3, 06:20 UTCJul 3, 06:35 UTC15m
2026-07-02 GCR6500 - Jul 2, 09:05 UTCJul 2, 09:15 UTC10m
2026-07-01 GCR7964 - Jul 1, 20:05 UTCJul 1, 23:10 UTC3h 5m
2026-07-01 GCR7963 - Jul 1, 15:15 UTCJul 1, 18:15 UTC3h 0m
2026-07-01 GCR6500 - Jul 1, 07:50 UTCJul 1, 08:05 UTC15m
2026-07-01 GCR6499 - Jul 1, 05:40 UTCJul 1, 05:50 UTC10m
2026-06-30 GCR6500 - Jun 30, 07:55 UTCJun 30, 08:05 UTC10m
2026-06-30 GCR6499 - Jun 30, 05:45 UTCJun 30, 06:00 UTC15m
2026-06-29 GCR7964 - Jun 29, 19:54 UTCJun 29, 22:59 UTC3h 5m
2026-06-28 GCR7963 - Jun 28, 22:20 UTCJun 29, 18:14 UTC19h 55m
2026-06-28 GCR7963 - Jun 28, 19:34 UTCJun 29, 18:14 UTC22h 40m
2026-06-28 GCR7963 - Jun 28, 15:05 UTCJun 28, 18:05 UTC3h 0m

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-300S page for operator, model, and routing details .

Mode-S 781429 frequently asked

What is Mode-S code 781429?
781429 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-300S.
Where is Mode-S 781429 registered?
Mode-S code 781429 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781429 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781429, octal 36012051, decimal 7,869,481.
What flights does 781429 operate?
Mode-S 781429 has broadcast 20 distinct callsigns, including GCR7963, GCR6500, GCR6499, GCR7964, GCR7539.