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sensors Mode-S transponder

780B3D

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-3361 · BOMBARDIER Regional Jet CRJ-900

Hex
780B3D
Octal
36005475
Decimal
7,867,197
Country
CN
Tail
B-3361
Type
CRJ9
No current signal · last broadcast 5h ago
Flights observed
35
Distinct callsigns
4
Country
CN
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 780B3D.

Country allocation

The ICAO 24-bit address 780B3D 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 4 distinct

Callsign Airline Flights Last seen
HXA4883 - 14 2026-07-21
HXA4884 - 13 2026-07-21
HXA2605 China Express Airlines 7 2026-07-20
HXA4169 - 1 2026-06-29

Recent flights last 35

DateFlightRouteTakeoffLandingDuration
2026-07-21 HXA4884 - Jul 21, 04:50 UTCJul 21, 05:00 UTC10m
2026-07-21 HXA4883 - Jul 21, 02:25 UTCJul 21, 02:40 UTC15m
2026-07-20 HXA2605 SJW → ZQZ Jul 20, 13:55 UTCJul 20, 14:10 UTC15m
2026-07-20 HXA4884 - Jul 20, 06:05 UTCJul 20, 06:30 UTC25m
2026-07-20 HXA4883 - Jul 20, 02:40 UTCJul 20, 02:50 UTC10m
2026-07-19 HXA4884 - Jul 19, 05:00 UTCJul 19, 05:15 UTC15m
2026-07-19 HXA4883 - Jul 19, 02:35 UTCJul 19, 02:45 UTC10m
2026-07-15 HXA4884 - Jul 15, 05:15 UTCJul 15, 05:30 UTC15m
2026-07-15 HXA4883 - Jul 15, 02:50 UTCJul 15, 03:00 UTC10m
2026-07-14 HXA2605 - Jul 14, 12:15 UTCJul 14, 12:30 UTC15m
2026-07-14 HXA4884 - Jul 14, 04:55 UTCJul 14, 05:10 UTC15m
2026-07-14 HXA4883 - Jul 14, 02:30 UTCJul 14, 02:45 UTC15m
2026-07-13 HXA4884 - Jul 13, 05:15 UTCJul 13, 05:31 UTC15m
2026-07-13 HXA4883 - Jul 13, 02:40 UTCJul 13, 02:50 UTC10m
2026-07-11 HXA4884 - Jul 11, 05:01 UTCJul 11, 05:15 UTC15m
2026-07-11 HXA4883 - Jul 11, 02:30 UTCJul 11, 02:40 UTC10m
2026-06-29 HXA4169 - Jun 29, 12:29 UTCJun 29, 12:55 UTC25m
2026-06-26 HXA4883 - Jun 26, 02:50 UTCJun 26, 03:05 UTC15m
2026-06-25 HXA2605 - Jun 25, 11:59 UTCJun 25, 12:19 UTC20m
2026-06-25 HXA4884 - Jun 25, 04:54 UTCJun 25, 05:05 UTC10m
2026-06-25 HXA4883 - Jun 25, 02:30 UTCJun 25, 02:45 UTC15m
2026-06-21 HXA2605 - Jun 21, 11:44 UTCJun 21, 11:55 UTC10m
2026-06-20 HXA2605 SJW → ZQZ Jun 20, 11:40 UTCJun 20, 11:54 UTC15m
2026-06-12 HXA4884 - Jun 12, 05:05 UTCJun 12, 05:15 UTC10m
2026-06-12 HXA4883 - Jun 12, 02:50 UTCJun 12, 03:05 UTC15m
2026-06-11 HXA2605 SJW → ZQZ Jun 11, 11:45 UTCJun 11, 12:05 UTC20m
2026-06-11 HXA4884 - Jun 11, 04:55 UTCJun 11, 05:05 UTC10m
2026-06-11 HXA4883 - Jun 11, 02:30 UTCJun 11, 02:45 UTC15m
2026-06-10 HXA4884 - Jun 10, 05:05 UTCJun 10, 05:15 UTC10m
2026-06-10 HXA4883 - Jun 10, 02:30 UTCJun 10, 02:45 UTC15m
2026-06-06 HXA4884 - Jun 6, 04:50 UTCJun 6, 05:00 UTC10m
2026-06-06 HXA4883 - Jun 6, 02:30 UTCJun 6, 02:45 UTC15m
2026-06-05 HXA2605 SJW → ZQZ Jun 5, 11:40 UTCJun 5, 11:55 UTC15m
2026-06-05 HXA4884 - Jun 5, 05:05 UTCJun 5, 05:15 UTC10m
2026-06-05 HXA4883 - Jun 5, 02:35 UTCJun 5, 02:50 UTC15m

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-3361 page for operator, model, and routing details .

Mode-S 780B3D frequently asked

What is Mode-S code 780B3D?
780B3D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-3361.
Where is Mode-S 780B3D registered?
Mode-S code 780B3D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780B3D broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780B3D, octal 36005475, decimal 7,867,197.
What flights does 780B3D operate?
Mode-S 780B3D has broadcast 4 distinct callsigns, including HXA4883, HXA4884, HXA2605, HXA4169.