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sensors Mode-S transponder

780639

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6511 · AIRBUS A-330-300

Hex
780639
Octal
36003071
Decimal
7,865,913
Country
CN
Tail
B-6511
Type
A333
No current signal · last broadcast Jul 22, 13:15 UTC
Flights observed
199
Distinct callsigns
20
Country
CN
Last broadcast
Jul 22, 13:15 UTC

Last known position

Most recent position reported by Mode-S 780639.

Country allocation

The ICAO 24-bit address 780639 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
CCA185 Air China 36 2026-07-19
CCA195 - 26 2026-07-12
CCA186 Air China 25 2026-07-19
CCA196 - 21 2026-07-13
CCA1835 - 7 2026-07-02
CCA978 Air China 5 2026-07-18
CCA976 - 5 2026-07-16
CCA975 - 4 2026-07-15
CCA977 Air China 3 2026-07-17
CCA1533 - 3 2026-06-23
CCA1333 Air China 3 2026-06-11
CCA1309 - 3 2026-07-05
CCA1308 Air China 3 2026-06-08
CCA1304 Air China 3 2026-05-26
CCA1303 Air China 3 2026-05-26
CCA1301 - 3 2026-07-04
CCA125 Air China 3 2026-07-18
CCA1902 - 2 2026-06-26
CCA1901 - 2 2026-06-26
CCA1589 - 2 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 CCA1379 PEK → CAN Jul 22, 12:50 UTCJul 22, 13:15 UTC25m
2026-07-20 CCA1254 URC → PEK Jul 20, 03:05 UTCJul 20, 11:55 UTC8h 50m
2026-07-19 CCA1425 - Jul 19, 10:10 UTCJul 19, 10:25 UTC15m
2026-07-19 CCA186 TPE → PEK Jul 19, 05:10 UTCJul 19, 05:55 UTC45m
2026-07-19 CCA185 PEK → TPE Jul 19, 02:45 UTCJul 19, 03:15 UTC30m
2026-07-18 CCA126 - Jul 18, 09:35 UTCJul 18, 10:00 UTC25m
2026-07-18 CCA125 PEK → ICN Jul 18, 07:45 UTCJul 18, 08:05 UTC20m
2026-07-18 CCA125 PEK → ICN Jul 18, 06:50 UTCJul 18, 07:00 UTC10m
2026-07-18 CCA978 CGK → PEK Jul 18, 03:05 UTCJul 18, 03:20 UTC15m
2026-07-17 CCA978 CGK → PEK Jul 17, 22:05 UTCJul 18, 00:50 UTC2h 45m
2026-07-17 CCA978 CGK → PEK Jul 17, 20:29 UTCJul 17, 20:40 UTC10m
2026-07-17 CCA977 PEK → CGK Jul 17, 18:10 UTCJul 17, 18:29 UTC20m
2026-07-17 CCA977 PEK → CGK Jul 17, 12:04 UTCJul 17, 14:30 UTC2h 25m
2026-07-17 CCA1406 CTU → PEK Jul 17, 09:25 UTCJul 17, 09:35 UTC10m
2026-07-16 CCA4200 - Jul 16, 13:34 UTCJul 16, 13:54 UTC20m
2026-07-16 CCA976 - Jul 16, 01:15 UTCJul 16, 04:50 UTC3h 35m
2026-07-15 CCA975 - Jul 15, 17:00 UTCJul 15, 22:35 UTC5h 35m
2026-07-15 CCA126 - Jul 15, 09:10 UTCJul 15, 09:40 UTC30m
2026-07-15 CCA125 - Jul 15, 06:50 UTCJul 15, 07:25 UTC35m
2026-07-15 CCA710 - Jul 15, 02:10 UTCJul 15, 02:30 UTC20m
2026-07-14 CCA709 - Jul 14, 12:30 UTCJul 14, 13:30 UTC1h 0m
2026-07-14 CCA186 - Jul 14, 05:20 UTCJul 14, 05:55 UTC35m
2026-07-14 CCA185 - Jul 14, 03:05 UTCJul 14, 03:40 UTC35m
2026-07-14 CCA185 - Jul 14, 00:55 UTCJul 14, 01:05 UTC10m
2026-07-13 CCA196 - Jul 13, 07:35 UTCJul 13, 08:10 UTC35m
2026-07-12 CCA195 - Jul 12, 14:15 UTCJul 13, 05:55 UTC15h 40m
2026-07-12 CCA195 - Jul 12, 12:10 UTCJul 12, 12:45 UTC35m
2026-07-10 CCA1291 - Jul 10, 09:45 UTCJul 10, 18:20 UTC8h 35m
2026-07-05 CCA1309 - Jul 5, 12:35 UTCJul 5, 12:55 UTC20m
2026-07-05 CCA186 - Jul 5, 05:20 UTCJul 5, 05:45 UTC25m
2026-07-05 CCA185 - Jul 5, 03:00 UTCJul 5, 03:15 UTC15m
2026-07-04 CCA1302 - Jul 4, 17:35 UTCJul 4, 17:55 UTC20m
2026-07-04 CCA1301 - Jul 4, 10:35 UTCJul 4, 10:45 UTC10m
2026-07-04 CCA186 - Jul 4, 05:15 UTCJul 4, 05:40 UTC25m
2026-07-04 CCA185 - Jul 4, 03:20 UTCJul 4, 03:45 UTC25m
2026-07-04 CCA185 - Jul 4, 01:00 UTCJul 4, 01:10 UTC10m
2026-07-03 CCA186 - Jul 3, 05:50 UTCJul 3, 06:20 UTC30m
2026-07-03 CCA185 - Jul 3, 04:00 UTCJul 3, 04:30 UTC30m
2026-07-03 CCA185 - Jul 3, 01:45 UTCJul 3, 01:55 UTC10m
2026-07-02 CCA196 - Jul 2, 07:10 UTCJul 2, 07:40 UTC30m
2026-07-02 CCA195 - Jul 2, 05:00 UTCJul 2, 05:35 UTC35m
2026-07-02 CCA1835 - Jul 2, 00:45 UTCJul 2, 00:55 UTC10m
2026-07-01 CCA1301 - Jul 1, 07:30 UTCJul 1, 07:50 UTC20m
2026-06-27 CCA186 - Jun 27, 05:19 UTCJun 27, 05:49 UTC30m
2026-06-27 CCA185 - Jun 27, 03:04 UTCJun 27, 03:40 UTC35m
2026-06-27 CCA185 - Jun 27, 00:55 UTCJun 27, 01:04 UTC10m
2026-06-26 CCA1902 - Jun 26, 09:39 UTCJun 26, 10:05 UTC25m
2026-06-26 CCA1901 - Jun 26, 01:29 UTCJun 26, 01:50 UTC20m
2026-06-25 CCA196 - Jun 25, 07:15 UTCJun 25, 07:49 UTC35m
2026-06-25 CCA195 - Jun 25, 05:05 UTCJun 25, 05:39 UTC35m

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-6511 page for operator, model, and routing details .

Mode-S 780639 frequently asked

What is Mode-S code 780639?
780639 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6511.
Where is Mode-S 780639 registered?
Mode-S code 780639 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780639 broadcasting right now?
No active broadcast right now. Last signal was Jul 22, 13:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780639, octal 36003071, decimal 7,865,913.
What flights does 780639 operate?
Mode-S 780639 has broadcast 20 distinct callsigns, including CCA185, CCA195, CCA186, CCA196, CCA1835.