Apparatus

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sensors Mode-S transponder

780504

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-2001 · BOEING 777-300ER

Hex
780504
Octal
36002404
Decimal
7,865,604
Country
CN
Tail
B-2001
Type
B77W
Broadcasting now · callsign CES583 · 29,000 ft
Flights observed
195
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 22:55 UTC

Current position

780504 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 780504 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
CES586 - 21 2026-06-26
CES583 - 16 2026-06-26
CES207 - 15 2026-06-29
CES220 - 13 2026-06-25
CES771 China Eastern Airlines 12 2026-07-24
CES553 - 11 2026-06-27
CES772 China Eastern Airlines 10 2026-07-26
CES554 - 9 2026-06-28
CES219 China Eastern Airlines 9 2026-06-24
CES208 - 8 2026-06-30
CES779 - 7 2026-07-01
CES5376 - 6 2026-07-20
CES780 - 5 2026-07-01
CES552 China Eastern Airlines 5 2026-07-23
CES5375 - 5 2026-07-16
CES551 China Eastern Airlines 4 2026-07-23
CES5166 - 4 2026-07-15
CES5126 China Eastern Airlines 4 2026-07-21
CES588 - 3 2026-06-18
CES576 China Eastern Airlines 3 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CES543 PVG → SIN Jul 26, 22:45 UTCJul 26, 22:55 UTC10m
2026-07-26 CES772 AMS → PVG Jul 26, 01:10 UTCJul 26, 19:55 UTC18h 46m
2026-07-25 CES772 AMS → PVG Jul 25, 21:05 UTCJul 26, 19:55 UTC22h 51m
2026-07-25 CES772 AMS → PVG Jul 25, 20:05 UTCJul 26, 19:00 UTC22h 56m
2026-07-24 CES771 PVG → AMS Jul 24, 23:55 UTCJul 25, 17:50 UTC17h 55m
2026-07-23 CES552 LHR → PVG Jul 23, 20:30 UTCJul 24, 12:05 UTC15h 35m
2026-07-23 CES551 PVG → LHR Jul 23, 07:00 UTCJul 23, 17:05 UTC10h 5m
2026-07-21 CES5126 PEK → SHA Jul 21, 13:10 UTCJul 21, 13:20 UTC10m
2026-07-21 CES5110 - Jul 21, 04:20 UTCJul 21, 04:30 UTC10m
2026-07-20 CES5376 - Jul 20, 10:20 UTCJul 20, 14:50 UTC4h 30m
2026-07-19 CES5126 PEK → SHA Jul 19, 15:15 UTCJul 19, 15:25 UTC10m
2026-07-18 CES5126 PEK → SHA Jul 18, 12:25 UTCJul 18, 12:35 UTC10m
2026-07-18 CES5117 SHA → PEK Jul 18, 09:55 UTCJul 18, 10:05 UTC10m
2026-07-17 CES5376 - Jul 17, 10:20 UTCJul 17, 15:00 UTC4h 40m
2026-07-16 CES5375 - Jul 16, 14:29 UTCJul 17, 10:35 UTC20h 5m
2026-07-16 CES5375 - Jul 16, 10:15 UTCJul 16, 14:45 UTC4h 30m
2026-07-15 CES5166 - Jul 15, 15:00 UTCJul 15, 15:10 UTC10m
2026-07-15 CES5121 - Jul 15, 12:15 UTCJul 15, 12:25 UTC10m
2026-07-14 CES5126 - Jul 14, 12:20 UTCJul 14, 12:30 UTC10m
2026-07-14 CES5110 - Jul 14, 04:20 UTCJul 14, 04:30 UTC10m
2026-07-13 CES5166 - Jul 13, 13:55 UTCJul 13, 14:05 UTC10m
2026-07-13 CES5114 - Jul 13, 06:20 UTCJul 13, 06:30 UTC10m
2026-07-12 CES5166 - Jul 12, 14:05 UTCJul 12, 14:15 UTC10m
2026-07-12 CES5114 - Jul 12, 06:25 UTCJul 12, 06:40 UTC15m
2026-07-10 CES5375 - Jul 10, 10:35 UTCJul 10, 14:15 UTC3h 40m
2026-07-09 CES5166 - Jul 9, 13:55 UTCJul 9, 14:05 UTC10m
2026-07-08 CES5376 - Jul 8, 13:55 UTCJul 8, 14:05 UTC10m
2026-07-08 CES5375 - Jul 8, 10:05 UTCJul 8, 10:55 UTC50m
2026-07-07 CES5375 - Jul 7, 13:50 UTCJul 8, 10:55 UTC21h 5m
2026-07-07 CES5376 - Jul 7, 10:15 UTCJul 7, 14:05 UTC3h 50m
2026-07-06 CES5376 - Jul 6, 13:50 UTCJul 7, 10:15 UTC20h 25m
2026-07-06 CES5376 - Jul 6, 10:20 UTCJul 6, 14:20 UTC4h 0m
2026-07-04 CES566 SIN → PVG Jul 4, 15:40 UTCJul 5, 10:30 UTC18h 50m
2026-07-04 CES576 HND → PVG Jul 4, 00:00 UTCJul 4, 12:20 UTC12h 20m
2026-07-02 CES552 LHR → PVG Jul 2, 20:50 UTCJul 3, 13:50 UTC17h 0m
2026-07-02 CES551 - Jul 2, 10:25 UTCJul 2, 17:55 UTC7h 30m
2026-07-01 CES551 - Jul 1, 11:25 UTCJul 2, 11:00 UTC23h 35m
2026-07-01 CES780 - Jul 1, 09:20 UTCJul 1, 09:35 UTC15m
2026-07-01 CES779 - Jul 1, 03:20 UTCJul 1, 03:45 UTC25m
2026-06-30 CES208 - Jun 30, 08:55 UTCJul 1, 01:35 UTC16h 40m
2026-06-30 CES208 - Jun 30, 03:05 UTCJul 1, 01:35 UTC22h 30m
2026-06-29 CES208 - Jun 29, 20:54 UTCJun 30, 09:35 UTC12h 40m
2026-06-29 CES207 - Jun 29, 05:45 UTCJun 29, 18:25 UTC12h 40m
2026-06-28 CES207 - Jun 28, 21:14 UTCJun 29, 18:25 UTC21h 10m
2026-06-28 CES207 - Jun 28, 13:04 UTCJun 29, 13:00 UTC23h 55m
2026-06-28 CES554 - Jun 28, 12:19 UTCJun 29, 07:09 UTC18h 50m
2026-06-27 CES553 - Jun 27, 18:09 UTCJun 28, 03:55 UTC9h 45m
2026-06-27 CES553 - Jun 27, 07:04 UTCJun 28, 03:55 UTC20h 50m
2026-06-27 CES553 - Jun 27, 06:15 UTCJun 28, 03:55 UTC21h 40m
2026-06-26 CES586 - Jun 26, 21:04 UTCJun 27, 18:29 UTC21h 25m

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-2001 page for operator, model, and routing details .

Mode-S 780504 frequently asked

What is Mode-S code 780504?
780504 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-2001.
Where is Mode-S 780504 registered?
Mode-S code 780504 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780504 broadcasting right now?
Yes. Mode-S 780504 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780504, octal 36002404, decimal 7,865,604.
What flights does 780504 operate?
Mode-S 780504 has broadcast 20 distinct callsigns, including CES586, CES583, CES207, CES220, CES771.