Apparatus

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sensors Mode-S transponder

780E20

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1529 · BOEING 737-800

Hex
780E20
Octal
36007040
Decimal
7,867,936
Country
CN
Tail
B-1529
Type
B738
No current signal · last broadcast 1d ago
Flights observed
69
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 780E20.

Country allocation

The ICAO 24-bit address 780E20 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
CCA8681 - 9 2026-07-07
CCA8689 - 8 2026-07-10
CCA8630 Air China 8 2026-06-28
CCA8621 - 5 2026-07-09
CCA8608 - 4 2026-07-12
CCA8669 - 3 2026-07-17
CCA8659 - 3 2026-07-13
CCA8690 - 2 2026-07-10
CCA8631 - 2 2026-06-22
CCA8625 - 2 2026-05-29
CCA8622 - 2 2026-07-10
CCA8694 Air China 1 2026-06-16
CCA8693 Air China 1 2026-06-17
CCA8632 - 1 2026-05-03
CCA8616 - 1 2026-07-11
CCA8607 Air China 1 2026-07-05
CCA764 - 1 2026-07-09
CCA763 - 1 2026-07-09
CCA1891 - 1 2026-06-10
CCA1849 - 1 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CCA8669 - Jul 17, 12:04 UTCJul 17, 12:15 UTC10m
2026-07-13 CCA8659 - Jul 13, 05:55 UTCJul 13, 06:05 UTC10m
2026-07-12 CCA8669 - Jul 12, 11:50 UTCJul 12, 12:01 UTC10m
2026-07-12 CCA8608 - Jul 12, 07:55 UTCJul 12, 08:10 UTC15m
2026-07-11 CCA8616 - Jul 11, 20:55 UTCJul 11, 21:20 UTC25m
2026-07-10 CCA8690 - Jul 10, 06:20 UTCJul 10, 06:30 UTC10m
2026-07-10 CCA8689 - Jul 10, 03:30 UTCJul 10, 03:40 UTC10m
2026-07-10 CCA8622 - Jul 10, 01:25 UTCJul 10, 01:40 UTC15m
2026-07-09 CCA8621 - Jul 9, 22:50 UTCJul 9, 23:15 UTC25m
2026-07-09 CCA764 - Jul 9, 10:40 UTCJul 9, 10:55 UTC15m
2026-07-09 CCA763 - Jul 9, 08:25 UTCJul 9, 09:10 UTC45m
2026-07-08 CCA8690 - Jul 8, 06:20 UTCJul 8, 06:30 UTC10m
2026-07-08 CCA8689 - Jul 8, 03:10 UTCJul 8, 03:25 UTC15m
2026-07-07 CCA8681 - Jul 7, 11:20 UTCJul 7, 11:30 UTC10m
2026-07-06 CCA132 - Jul 6, 06:45 UTCJul 6, 07:00 UTC15m
2026-07-06 CCA131 - Jul 6, 04:20 UTCJul 6, 04:40 UTC20m
2026-07-05 CCA8621 - Jul 5, 22:55 UTCJul 5, 23:10 UTC15m
2026-07-05 CCA8608 - Jul 5, 07:50 UTCJul 5, 08:00 UTC10m
2026-07-05 CCA8607 PKX → WUA Jul 5, 04:05 UTCJul 5, 04:15 UTC10m
2026-07-03 CCA8689 - Jul 3, 03:10 UTCJul 3, 03:20 UTC10m
2026-06-29 CCA8669 - Jun 29, 11:55 UTCJun 29, 12:05 UTC10m
2026-06-28 CCA8630 ZUH → PKX Jun 28, 16:09 UTCJun 28, 16:19 UTC10m
2026-06-28 CCA8689 - Jun 28, 03:19 UTCJun 28, 03:29 UTC10m
2026-06-27 CCA8621 - Jun 27, 22:55 UTCJun 27, 23:10 UTC15m
2026-06-27 CCA8630 ZUH → PKX Jun 27, 15:55 UTCJun 27, 16:10 UTC15m
2026-06-26 CCA8681 - Jun 26, 09:30 UTCJun 26, 09:39 UTC10m
2026-06-24 CCA8689 - Jun 24, 03:04 UTCJun 24, 03:15 UTC10m
2026-06-23 CCA8689 - Jun 23, 03:04 UTCJun 23, 03:20 UTC15m
2026-06-22 CCA8631 - Jun 22, 01:44 UTCJun 22, 01:55 UTC10m
2026-06-17 CCA8693 SZX → PKX Jun 17, 00:30 UTCJun 17, 00:45 UTC15m
2026-06-16 CCA8694 PKX → SZX Jun 16, 12:10 UTCJun 16, 12:20 UTC10m
2026-06-13 CCA1417 PEK → TFU Jun 13, 04:40 UTCJun 13, 04:55 UTC15m
2026-06-13 CCA1112 HET → PEK Jun 13, 00:55 UTCJun 13, 01:15 UTC20m
2026-06-11 CCA1111 PEK → HET Jun 11, 13:20 UTCJun 11, 13:45 UTC25m
2026-06-11 CCA1150 DSN → PEK Jun 11, 11:05 UTCJun 11, 11:25 UTC20m
2026-06-11 CCA1149 PEK → DSN Jun 11, 08:30 UTCJun 11, 08:55 UTC25m
2026-06-10 CCA1891 - Jun 10, 05:30 UTCJun 10, 05:40 UTC10m
2026-06-09 CCA8689 PKX → TGO Jun 9, 04:00 UTCJun 9, 04:10 UTC10m
2026-06-06 CCA8681 PKX → JMU Jun 6, 09:24 UTCJun 6, 09:34 UTC10m
2026-06-05 CCA8681 PKX → JMU Jun 5, 09:25 UTCJun 5, 09:40 UTC15m
2026-06-05 CCA8689 PKX → TGO Jun 5, 04:00 UTCJun 5, 04:10 UTC10m
2026-06-04 CCA8608 WUA → PKX Jun 4, 09:30 UTCJun 4, 09:40 UTC10m
2026-06-03 CCA8608 WUA → PKX Jun 3, 08:35 UTCJun 3, 08:55 UTC20m
2026-06-02 CCA8621 PKX → KWL Jun 2, 22:50 UTCJun 2, 23:10 UTC20m
2026-05-30 CCA8681 PKX → JMU May 30, 09:45 UTCMay 30, 09:55 UTC10m
2026-05-29 CCA8625 - May 29, 11:25 UTCMay 29, 11:40 UTC15m
2026-05-27 CCA8622 KWL → PKX May 27, 01:39 UTCMay 27, 01:49 UTC10m
2026-05-26 CCA8621 PKX → KWL May 26, 22:50 UTCMay 26, 23:05 UTC15m
2026-05-26 CCA8625 - May 26, 11:39 UTCMay 26, 11:50 UTC10m
2026-05-22 CCA8630 ZUH → PKX May 22, 15:35 UTCMay 22, 15:45 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-1529 page for operator, model, and routing details .

Mode-S 780E20 frequently asked

What is Mode-S code 780E20?
780E20 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1529.
Where is Mode-S 780E20 registered?
Mode-S code 780E20 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780E20 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 780E20, octal 36007040, decimal 7,867,936.
What flights does 780E20 operate?
Mode-S 780E20 has broadcast 20 distinct callsigns, including CCA8681, CCA8689, CCA8630, CCA8621, CCA8608.