Apparatus

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sensors Mode-S transponder

780525

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6555 · AIRBUS A-321

Hex
780525
Octal
36002445
Decimal
7,865,637
Country
CN
Tail
B-6555
Type
A321
Broadcasting now · callsign CCA421 · 7,800 ft
Flights observed
181
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Current position

780525 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 780525 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
CCA161 - 11 2026-07-03
CCA183 - 10 2026-07-11
CCA167 - 10 2026-06-25
CCA162 - 10 2026-07-04
CCA927 Air China 9 2026-06-11
CCA184 - 9 2026-07-11
CCA168 - 9 2026-06-25
CCA928 Air China 8 2026-06-11
CCA110 Air China 7 2026-06-10
CCA109 Air China 6 2026-06-10
CCA1483 - 5 2026-07-04
CCA133 - 5 2026-06-30
CCA422 - 4 2026-06-18
CCA421 - 4 2026-07-14
CCA136 - 4 2026-07-05
CCA135 - 4 2026-07-05
CCA181 - 3 2026-06-21
CCA134 - 3 2026-06-30
CCA1335 Air China 3 2026-06-25
CCA1929 Air China 2 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CCA421 - Jul 14, 08:55 UTCJul 14, 09:15 UTC20m
2026-07-14 CCA1537 - Jul 14, 01:00 UTCJul 14, 01:10 UTC10m
2026-07-13 CCA1371 - Jul 13, 05:10 UTCJul 13, 05:25 UTC15m
2026-07-12 CCA1601 - Jul 12, 13:10 UTCJul 12, 13:20 UTC10m
2026-07-12 CCA1417 - Jul 12, 04:50 UTCJul 12, 05:10 UTC20m
2026-07-11 CCA184 - Jul 11, 23:40 UTCJul 12, 01:35 UTC1h 55m
2026-07-11 CCA183 - Jul 11, 12:20 UTCJul 11, 14:05 UTC1h 45m
2026-07-10 CCA8692 - Jul 10, 08:45 UTCJul 10, 09:00 UTC15m
2026-07-09 CCA1329 - Jul 9, 13:35 UTCJul 10, 06:40 UTC17h 5m
2026-07-08 CCA184 - Jul 8, 23:40 UTCJul 9, 01:40 UTC2h 0m
2026-07-08 CCA183 - Jul 8, 02:05 UTCJul 8, 13:25 UTC11h 20m
2026-07-05 CCA1825 - Jul 5, 23:20 UTCJul 5, 23:30 UTC10m
2026-07-05 CCA1571 - Jul 5, 11:05 UTCJul 5, 11:15 UTC10m
2026-07-05 CCA136 - Jul 5, 06:55 UTCJul 5, 07:20 UTC25m
2026-07-05 CCA135 - Jul 5, 04:55 UTCJul 5, 05:15 UTC20m
2026-07-04 CCA1483 - Jul 4, 05:00 UTCJul 4, 05:20 UTC20m
2026-07-04 CCA162 - Jul 4, 00:25 UTCJul 4, 01:55 UTC1h 30m
2026-07-03 CCA161 - Jul 3, 10:00 UTCJul 3, 11:25 UTC1h 25m
2026-07-02 CCA1248 - Jul 2, 13:15 UTCJul 3, 03:15 UTC14h 0m
2026-07-02 CCA1374 - Jul 2, 11:05 UTCJul 2, 11:15 UTC10m
2026-07-01 CCA1807 - Jul 1, 11:35 UTCJul 1, 11:50 UTC15m
2026-07-01 CCA1228 - Jul 1, 04:15 UTCJul 1, 08:25 UTC4h 10m
2026-07-01 CCA1218 - Jul 1, 02:15 UTCJul 1, 02:40 UTC25m
2026-06-30 CCA1217 - Jun 30, 13:10 UTCJun 30, 13:35 UTC25m
2026-06-30 CCA134 - Jun 30, 07:30 UTCJun 30, 09:35 UTC2h 5m
2026-06-30 CCA133 - Jun 30, 03:15 UTCJun 30, 05:05 UTC1h 50m
2026-06-30 CCA133 - Jun 30, 02:15 UTCJun 30, 02:25 UTC10m
2026-06-29 CCA1129 - Jun 29, 13:14 UTCJun 29, 13:24 UTC10m
2026-06-29 CCA134 - Jun 29, 07:15 UTCJun 29, 09:20 UTC2h 5m
2026-06-29 CCA133 - Jun 29, 03:20 UTCJun 29, 05:15 UTC1h 55m
2026-06-29 CCA133 - Jun 29, 02:25 UTCJun 29, 02:35 UTC10m
2026-06-28 CCA1930 - Jun 28, 17:55 UTCJun 28, 18:19 UTC25m
2026-06-28 CCA1929 PEK → YIH Jun 28, 11:14 UTCJun 28, 11:39 UTC25m
2026-06-28 CCA1228 - Jun 28, 09:05 UTCJun 28, 09:20 UTC15m
2026-06-28 CCA1227 - Jun 28, 04:05 UTCJun 28, 04:25 UTC20m
2026-06-28 CCA1218 - Jun 28, 02:14 UTCJun 28, 02:34 UTC20m
2026-06-27 CCA1217 - Jun 27, 13:20 UTCJun 27, 13:49 UTC30m
2026-06-27 CCA1484 - Jun 27, 11:39 UTCJun 27, 11:55 UTC15m
2026-06-27 CCA1483 - Jun 27, 05:10 UTCJun 27, 05:25 UTC15m
2026-06-26 CCA184 HND → PEK Jun 26, 23:34 UTCJun 27, 01:44 UTC2h 10m
2026-06-26 CCA183 - Jun 26, 10:39 UTCJun 26, 12:50 UTC2h 10m
2026-06-25 CCA1335 PEK → NNG Jun 25, 23:34 UTCJun 25, 23:55 UTC20m
2026-06-25 CCA168 - Jun 25, 10:39 UTCJun 25, 12:50 UTC2h 10m
2026-06-25 CCA167 - Jun 25, 06:40 UTCJun 25, 08:24 UTC1h 45m
2026-06-25 CCA184 HND → PEK Jun 25, 00:19 UTCJun 25, 02:30 UTC2h 10m
2026-06-24 CCA183 - Jun 24, 10:45 UTCJun 24, 12:30 UTC1h 45m
2026-06-23 CCA1461 - Jun 23, 23:14 UTCJun 23, 23:39 UTC25m
2026-06-23 CCA134 - Jun 23, 07:49 UTCJun 23, 09:54 UTC2h 5m
2026-06-23 CCA133 - Jun 23, 03:04 UTCJun 23, 04:50 UTC1h 45m
2026-06-22 CCA1411 - Jun 22, 07:45 UTCJun 22, 08:00 UTC15m

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-6555 page for operator, model, and routing details .

Mode-S 780525 frequently asked

What is Mode-S code 780525?
780525 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6555.
Where is Mode-S 780525 registered?
Mode-S code 780525 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780525 broadcasting right now?
Yes. Mode-S 780525 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780525, octal 36002445, decimal 7,865,637.
What flights does 780525 operate?
Mode-S 780525 has broadcast 20 distinct callsigns, including CCA161, CCA183, CCA167, CCA162, CCA927.