sensors Mode-S transponder

780C3B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1827 · AIRBUS A-320

Hex
780C3B
Octal
36006073
Decimal
7,867,451
Country
CN
Tail
B-1827
Type
A320
No current signal · last broadcast Jul 26, 08:50 UTC
Flights observed
65
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 08:50 UTC

Last known position

Most recent position reported by Mode-S 780C3B.

Country allocation

The ICAO 24-bit address 780C3B 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
CQN2074 - 12 2026-07-01
CQN2103 - 11 2026-06-22
CQN2361 - 6 2026-07-17
CQN2362 - 4 2026-07-17
CQN2111 - 3 2026-07-15
CQN2025 - 3 2026-07-22
CQN2386 - 2 2026-06-15
CQN2346 - 2 2026-06-28
CQN2342 - 2 2026-07-26
CQN2139 - 2 2026-04-15
CQN2105 - 2 2026-07-25
CQN2066 - 2 2026-06-06
CQN2065 Chongqing Airlines 2 2026-05-04
CQN2345 - 1 2026-06-28
CQN2341 - 1 2026-07-26
CQN2332 - 1 2026-07-13
CQN2331 - 1 2026-07-11
CQN2330 - 1 2026-06-24
CQN2326 - 1 2026-06-23
CQN2133 - 1 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CQN2342 - Jul 26, 08:40 UTCJul 26, 08:50 UTC10m
2026-07-26 CQN2341 - Jul 26, 06:30 UTCJul 26, 06:40 UTC11m
2026-07-25 CQN2106 - Jul 25, 12:30 UTCJul 25, 12:40 UTC10m
2026-07-25 CQN2105 - Jul 25, 09:40 UTCJul 25, 09:55 UTC15m
2026-07-22 CQN2025 - Jul 22, 00:30 UTCJul 22, 01:30 UTC1h 0m
2026-07-17 CQN2362 - Jul 17, 18:40 UTCJul 17, 20:04 UTC1h 25m
2026-07-17 CQN2361 - Jul 17, 15:40 UTCJul 17, 17:05 UTC1h 25m
2026-07-16 CQN2105 - Jul 16, 07:30 UTCJul 16, 08:30 UTC1h 0m
2026-07-15 CQN2111 - Jul 15, 10:35 UTCJul 15, 11:25 UTC50m
2026-07-13 CQN2332 - Jul 13, 12:25 UTCJul 13, 14:50 UTC2h 25m
2026-07-11 CQN2331 - Jul 11, 11:45 UTCJul 11, 12:05 UTC20m
2026-07-08 CQN2039 - Jul 8, 23:50 UTCJul 9, 00:05 UTC15m
2026-07-01 CQN2074 - Jul 1, 01:45 UTCJul 1, 14:15 UTC12h 30m
2026-06-30 CQN2074 - Jun 30, 14:50 UTCJul 1, 14:15 UTC23h 25m
2026-06-30 CQN2074 - Jun 30, 14:25 UTCJul 1, 10:15 UTC19h 50m
2026-06-30 CQN2076 - Jun 30, 11:30 UTCJul 1, 10:15 UTC22h 45m
2026-06-30 CQN2074 - Jun 30, 02:00 UTCJun 30, 14:55 UTC12h 55m
2026-06-29 CQN2074 - Jun 29, 13:54 UTCJun 30, 11:55 UTC22h 1m
2026-06-29 CQN2074 - Jun 29, 10:04 UTCJun 30, 02:25 UTC16h 21m
2026-06-29 CQN2074 - Jun 29, 02:05 UTCJun 29, 14:25 UTC12h 20m
2026-06-28 CQN2346 - Jun 28, 15:24 UTCJun 28, 15:40 UTC15m
2026-06-28 CQN2345 - Jun 28, 13:34 UTCJun 28, 13:55 UTC20m
2026-06-27 CQN2342 - Jun 27, 08:44 UTCJun 27, 09:00 UTC15m
2026-06-26 CQN2074 - Jun 26, 13:59 UTCJun 27, 06:35 UTC16h 35m
2026-06-26 CQN2074 - Jun 26, 09:55 UTCJun 27, 06:35 UTC20h 40m
2026-06-26 CQN2073 - Jun 26, 01:54 UTCJun 26, 14:19 UTC12h 25m
2026-06-25 CQN2074 - Jun 25, 13:40 UTCJun 26, 10:20 UTC20h 40m
2026-06-25 CQN2074 - Jun 25, 09:55 UTCJun 26, 02:24 UTC16h 30m
2026-06-25 CQN2074 - Jun 25, 02:05 UTCJun 25, 14:04 UTC12h 0m
2026-06-24 CQN2330 - Jun 24, 04:59 UTCJun 25, 02:35 UTC21h 35m
2026-06-23 CQN2326 - Jun 23, 14:59 UTCJun 23, 15:09 UTC10m
2026-06-22 CQN2103 - Jun 22, 23:39 UTCJun 23, 00:45 UTC1h 5m
2026-06-22 CQN2103 - Jun 22, 01:05 UTCJun 22, 02:00 UTC55m
2026-06-21 CQN2103 - Jun 21, 01:19 UTCJun 21, 01:35 UTC15m
2026-06-15 CQN2386 - Jun 15, 12:35 UTCJun 15, 12:49 UTC15m
2026-06-06 CQN2066 - Jun 6, 12:30 UTCJun 6, 12:40 UTC10m
2026-06-03 CQN2003 - Jun 3, 10:00 UTCJun 3, 10:30 UTC30m
2026-06-02 CQN2103 - Jun 2, 00:55 UTCJun 2, 01:45 UTC50m
2026-06-01 CQN2103 - Jun 1, 01:10 UTCJun 1, 01:35 UTC25m
2026-05-30 CQN2103 - May 30, 01:05 UTCMay 30, 01:45 UTC40m
2026-05-29 CQN2111 - May 29, 13:25 UTCMay 29, 13:45 UTC20m
2026-05-23 CQN2111 - May 23, 10:30 UTCMay 23, 10:45 UTC15m
2026-05-21 CQN2133 - May 21, 09:55 UTCMay 21, 10:10 UTC15m
2026-05-20 CQN2103 - May 20, 01:35 UTCMay 20, 01:50 UTC15m
2026-05-19 CQN2103 - May 19, 01:00 UTCMay 19, 01:15 UTC15m
2026-05-15 CQN2386 - May 15, 15:15 UTCMay 15, 15:30 UTC15m
2026-05-12 CQN2362 BKK → CKG May 12, 18:20 UTCMay 12, 19:20 UTC1h 0m
2026-05-12 CQN2361 CKG → BKK May 12, 15:55 UTCMay 12, 16:50 UTC55m
2026-05-11 CQN2361 CKG → BKK May 11, 18:50 UTCMay 12, 16:50 UTC22h 0m
2026-05-11 CQN2362 BKK → CKG May 11, 18:05 UTCMay 12, 16:45 UTC22h 40m

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-1827 page for operator, model, and routing details .

Mode-S 780C3B frequently asked

What is Mode-S code 780C3B?
780C3B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1827.
Where is Mode-S 780C3B registered?
Mode-S code 780C3B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780C3B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 08:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780C3B, octal 36006073, decimal 7,867,451.
What flights does 780C3B operate?
Mode-S 780C3B has broadcast 20 distinct callsigns, including CQN2074, CQN2103, CQN2361, CQN2362, CQN2111.