Apparatus

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sensors Mode-S transponder

781920

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30EJ · AIRBUS A-320neo

Hex
781920
Octal
36014440
Decimal
7,870,752
Country
CN
Tail
B-30EJ
Type
A20N
No current signal · last broadcast 1d ago
Flights observed
57
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 781920.

Country allocation

The ICAO 24-bit address 781920 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
CCA4166 - 10 2026-07-24
CCA4164 Air China 8 2026-07-23
CCA4162 - 8 2026-07-18
CCA4186 Air China 4 2026-06-13
CCA4165 Air China 3 2026-07-24
CCA4185 Air China 2 2026-05-30
CCA1895 Air China 2 2026-06-12
CCA9724 - 1 2026-07-08
CCA9723 - 1 2026-07-08
CCA8676 - 1 2026-07-07
CCA4540 - 1 2026-05-29
CCA4163 Air China 1 2026-07-19
CCA2742 Air China 1 2026-06-27
CCA2694 Air China 1 2026-04-14
CCA2664 - 1 2026-04-22
CCA1917 Air China 1 2026-06-09
CCA1718 Air China 1 2026-06-04
CCA1545 Air China 1 2026-07-23
CCA1470 - 1 2026-06-09
CCA1469 - 1 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 CCA4166 - Jul 24, 13:35 UTCJul 24, 14:05 UTC30m
2026-07-24 CCA4165 KWE → PEK Jul 24, 03:10 UTCJul 24, 11:15 UTC8h 5m
2026-07-23 CCA4164 PEK → KWE Jul 23, 06:00 UTCJul 23, 06:20 UTC20m
2026-07-23 CCA1545 PEK → YNT Jul 23, 00:30 UTCJul 23, 00:40 UTC10m
2026-07-22 CCA1373 PEK → CSX Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-20 CCA4164 PEK → KWE Jul 20, 05:20 UTCJul 20, 05:40 UTC20m
2026-07-19 CCA4164 PEK → KWE Jul 19, 05:55 UTCJul 19, 06:05 UTC10m
2026-07-19 CCA4163 KWE → PEK Jul 19, 03:45 UTCJul 19, 04:00 UTC15m
2026-07-18 CCA4166 - Jul 18, 13:45 UTCJul 18, 14:05 UTC20m
2026-07-18 CCA4162 - Jul 18, 03:35 UTCJul 18, 03:50 UTC15m
2026-07-17 CCA4166 - Jul 17, 14:04 UTCJul 17, 14:24 UTC20m
2026-07-17 CCA4165 - Jul 17, 11:15 UTCJul 17, 11:25 UTC10m
2026-07-17 CCA4162 - Jul 17, 03:34 UTCJul 17, 03:50 UTC15m
2026-07-16 CCA4166 - Jul 16, 13:45 UTCJul 16, 14:15 UTC30m
2026-07-16 CCA4162 - Jul 16, 03:10 UTCJul 16, 03:35 UTC25m
2026-07-15 CCA4162 - Jul 15, 03:20 UTCJul 15, 03:40 UTC20m
2026-07-14 CCA4166 - Jul 14, 13:40 UTCJul 14, 14:05 UTC25m
2026-07-14 CCA4162 - Jul 14, 03:15 UTCJul 14, 03:35 UTC20m
2026-07-13 CCA4166 - Jul 13, 13:40 UTCJul 13, 14:00 UTC20m
2026-07-13 CCA4162 - Jul 13, 03:10 UTCJul 13, 03:30 UTC20m
2026-07-11 CCA4166 - Jul 11, 18:10 UTCJul 11, 18:25 UTC15m
2026-07-11 CCA4162 - Jul 11, 03:45 UTCJul 11, 04:05 UTC20m
2026-07-10 CCA4166 - Jul 10, 14:45 UTCJul 10, 15:05 UTC20m
2026-07-10 CCA4165 - Jul 10, 11:20 UTCJul 10, 11:50 UTC30m
2026-07-10 CCA4162 - Jul 10, 03:30 UTCJul 10, 03:55 UTC25m
2026-07-09 CCA4166 - Jul 9, 13:45 UTCJul 9, 14:05 UTC20m
2026-07-08 CCA4166 - Jul 8, 14:10 UTCJul 8, 14:30 UTC20m
2026-07-08 CCA9724 - Jul 8, 11:40 UTCJul 8, 12:05 UTC25m
2026-07-08 CCA9723 - Jul 8, 03:25 UTCJul 8, 03:45 UTC20m
2026-07-07 CCA8676 - Jul 7, 15:50 UTCJul 7, 16:05 UTC15m
2026-06-27 CCA2742 SHE → TFU Jun 27, 01:39 UTCJun 27, 05:35 UTC3h 55m
2026-06-13 CCA4186 PEK → CTU Jun 13, 02:10 UTCJun 13, 02:30 UTC20m
2026-06-12 CCA1262 XNN → PEK Jun 12, 12:25 UTCJun 12, 12:45 UTC20m
2026-06-12 CCA1261 PEK → XNN Jun 12, 07:40 UTCJun 12, 08:05 UTC25m
2026-06-12 CCA1895 PEK → SQD Jun 12, 00:00 UTCJun 12, 00:15 UTC15m
2026-06-11 CCA1448 KMG → PEK Jun 11, 17:00 UTCJun 11, 17:25 UTC25m
2026-06-11 CCA1447 PEK → KMG Jun 11, 09:45 UTCJun 11, 10:20 UTC35m
2026-06-11 CCA1895 PEK → SQD Jun 11, 00:10 UTCJun 11, 00:20 UTC10m
2026-06-10 CCA1414 KMG → PEK Jun 10, 07:30 UTCJun 10, 14:55 UTC7h 25m
2026-06-09 CCA1917 PEK → LZH Jun 9, 23:20 UTCJun 9, 23:40 UTC20m
2026-06-09 CCA1459 - Jun 9, 08:55 UTCJun 9, 15:50 UTC6h 55m
2026-06-09 CCA1470 - Jun 9, 06:15 UTCJun 9, 06:40 UTC25m
2026-06-08 CCA1469 - Jun 8, 23:05 UTCJun 8, 23:25 UTC20m
2026-06-07 CCA4186 PEK → CTU Jun 7, 02:10 UTCJun 7, 02:30 UTC20m
2026-06-05 CCA4186 PEK → CTU Jun 5, 02:15 UTCJun 5, 02:35 UTC20m
2026-06-04 CCA1718 PEK → HGH Jun 4, 07:25 UTCJun 4, 07:40 UTC15m
2026-06-03 CCA4186 PEK → CTU Jun 3, 02:05 UTCJun 3, 02:30 UTC25m
2026-05-30 CCA4185 CTU → PEK May 30, 14:05 UTCMay 30, 14:20 UTC15m
2026-05-29 CCA4185 CTU → PEK May 29, 14:05 UTCMay 29, 14:20 UTC15m
2026-05-29 CCA4540 - May 29, 06:35 UTCMay 29, 09:15 UTC2h 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-30EJ page for operator, model, and routing details .

Mode-S 781920 frequently asked

What is Mode-S code 781920?
781920 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30EJ.
Where is Mode-S 781920 registered?
Mode-S code 781920 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781920 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 781920, octal 36014440, decimal 7,870,752.
What flights does 781920 operate?
Mode-S 781920 has broadcast 20 distinct callsigns, including CCA4166, CCA4164, CCA4162, CCA4186, CCA4165.