Apparatus

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sensors Mode-S transponder

78031E

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5327 · BOEING 737-800

Hex
78031E
Octal
36001436
Decimal
7,865,118
Country
CN
Tail
B-5327
Type
B738
No current signal · last broadcast 1d ago
Flights observed
79
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 78031E.

Country allocation

The ICAO 24-bit address 78031E 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
CCA434 - 7 2026-07-01
CCA433 - 7 2026-07-01
CCA2678 - 7 2026-07-02
CCA420 - 5 2026-07-17
CCA419 Air China 5 2026-07-17
CCA4368 - 4 2026-06-28
CCA4142 - 4 2026-07-14
CCA4372 - 3 2026-06-30
CCA4375 Air China 2 2026-06-05
CCA4365 - 2 2026-06-18
CCA4330 - 2 2026-06-18
CCA1913 - 2 2026-06-23
CCA1621 Air China 2 2026-06-20
CCA1417 - 2 2026-07-11
CCA130 Air China 2 2026-04-29
CCA129 Air China 2 2026-04-29
CCA9735 - 1 2026-07-13
CCA4367 Air China 1 2026-05-03
CCA4366 Air China 1 2026-06-18
CCA4346 Air China 1 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CCA420 - Jul 17, 07:20 UTCJul 17, 07:35 UTC15m
2026-07-17 CCA419 CKG → HKG Jul 17, 05:15 UTCJul 17, 05:55 UTC40m
2026-07-15 CCA420 - Jul 15, 08:25 UTCJul 15, 08:40 UTC15m
2026-07-15 CCA419 - Jul 15, 05:15 UTCJul 15, 06:15 UTC1h 0m
2026-07-14 CCA4142 - Jul 14, 10:35 UTCJul 14, 11:00 UTC25m
2026-07-13 CCA9735 - Jul 13, 13:20 UTCJul 13, 13:30 UTC10m
2026-07-13 CCA1605 - Jul 13, 02:01 UTCJul 13, 02:10 UTC10m
2026-07-11 CCA1417 - Jul 11, 04:45 UTCJul 11, 05:01 UTC15m
2026-07-02 CCA2678 - Jul 2, 03:35 UTCJul 2, 03:45 UTC10m
2026-07-01 CCA434 - Jul 1, 10:35 UTCJul 1, 12:20 UTC1h 45m
2026-07-01 CCA433 - Jul 1, 07:15 UTCJul 1, 08:55 UTC1h 40m
2026-06-30 CCA433 - Jun 30, 11:50 UTCJul 1, 08:55 UTC21h 5m
2026-06-30 CCA4372 - Jun 30, 03:20 UTCJun 30, 03:30 UTC10m
2026-06-30 CCA2677 - Jun 30, 01:19 UTCJun 30, 01:30 UTC11m
2026-06-29 CCA2678 - Jun 29, 03:25 UTCJun 29, 03:34 UTC10m
2026-06-28 CCA4368 - Jun 28, 00:04 UTCJun 28, 00:20 UTC15m
2026-06-24 CCA4142 - Jun 24, 10:49 UTCJun 24, 11:09 UTC20m
2026-06-24 CCA1415 - Jun 24, 01:55 UTCJun 24, 02:15 UTC20m
2026-06-23 CCA1913 - Jun 23, 06:55 UTCJun 23, 07:15 UTC20m
2026-06-22 CCA1434 - Jun 22, 08:19 UTCJun 22, 08:40 UTC20m
2026-06-22 CCA1433 - Jun 22, 01:55 UTCJun 22, 02:14 UTC20m
2026-06-20 CCA1621 PEK → HRB Jun 20, 22:59 UTCJun 20, 23:10 UTC10m
2026-06-20 CCA1417 - Jun 20, 04:44 UTCJun 20, 05:09 UTC25m
2026-06-19 CCA434 - Jun 19, 10:44 UTCJun 19, 12:29 UTC1h 45m
2026-06-19 CCA433 - Jun 19, 07:29 UTCJun 19, 09:14 UTC1h 45m
2026-06-19 CCA4368 - Jun 19, 01:39 UTCJun 19, 01:50 UTC10m
2026-06-18 CCA4366 DZH → SZX Jun 18, 17:50 UTCJun 18, 18:10 UTC20m
2026-06-18 CCA4365 - Jun 18, 12:50 UTCJun 18, 13:00 UTC10m
2026-06-18 CCA4330 - Jun 18, 00:55 UTCJun 18, 01:05 UTC10m
2026-06-17 CCA4365 - Jun 17, 07:40 UTCJun 17, 07:50 UTC10m
2026-06-17 CCA4330 - Jun 17, 00:15 UTCJun 17, 00:25 UTC10m
2026-06-16 CCA4372 - Jun 16, 03:20 UTCJun 16, 03:30 UTC10m
2026-06-15 CCA2678 - Jun 15, 03:10 UTCJun 15, 03:19 UTC10m
2026-06-14 CCA434 - Jun 14, 11:05 UTCJun 14, 12:45 UTC1h 40m
2026-06-14 CCA433 - Jun 14, 07:10 UTCJun 14, 08:50 UTC1h 40m
2026-06-13 CCA1487 PEK → DZH Jun 13, 05:00 UTCJun 13, 05:15 UTC15m
2026-06-12 CCA420 HKG → CKG Jun 12, 07:10 UTCJun 12, 07:25 UTC15m
2026-06-12 CCA419 - Jun 12, 04:50 UTCJun 12, 05:15 UTC25m
2026-06-11 CCA4368 SZX → CKG Jun 11, 23:30 UTCJun 11, 23:45 UTC15m
2026-06-11 - - Jun 11, 16:05 UTCJun 11, 16:15 UTC10m
2026-06-10 CCA434 NRT → CKG Jun 10, 10:40 UTCJun 10, 12:20 UTC1h 40m
2026-06-10 CCA433 CKG → NRT Jun 10, 07:20 UTCJun 10, 08:40 UTC1h 20m
2026-06-06 CCA4346 SZX → CKG Jun 6, 16:24 UTCJun 6, 16:39 UTC15m
2026-06-05 CCA4375 ZUH → DZH Jun 5, 03:50 UTCJun 5, 04:05 UTC15m
2026-06-04 CCA2678 ZUH → TFU Jun 4, 03:00 UTCJun 4, 03:10 UTC10m
2026-06-03 CCA4011 CKG → HRB Jun 3, 01:00 UTCJun 3, 01:10 UTC10m
2026-05-29 CCA420 HKG → CKG May 29, 07:15 UTCMay 29, 07:25 UTC10m
2026-05-29 CCA419 CKG → HKG May 29, 04:50 UTCMay 29, 05:20 UTC30m
2026-05-27 CCA4142 PEK → CKG May 27, 10:25 UTCMay 28, 02:00 UTC15h 35m
2026-05-21 CCA1621 PEK → HRB May 21, 23:00 UTCMay 21, 23:10 UTC10m

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-5327 page for operator, model, and routing details .

Mode-S 78031E frequently asked

What is Mode-S code 78031E?
78031E is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5327.
Where is Mode-S 78031E registered?
Mode-S code 78031E is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78031E 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 78031E, octal 36001436, decimal 7,865,118.
What flights does 78031E operate?
Mode-S 78031E has broadcast 20 distinct callsigns, including CCA434, CCA433, CCA2678, CCA420, CCA419.