Apparatus

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sensors Mode-S transponder

7820DB

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-225N · BOEING 737 MAX 8

Hex
7820DB
Octal
36020333
Decimal
7,872,731
Country
CN
Tail
B-225N
Type
B38M
No current signal · last broadcast 2h ago
Flights observed
137
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 7820DB.

Country allocation

The ICAO 24-bit address 7820DB 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
CCA108 - 8 2026-06-30
CCA107 - 7 2026-06-29
CCA1255 - 5 2026-06-30
CCA713 Air China 4 2026-05-21
CCA1296 - 4 2026-07-14
CCA1295 Air China 4 2026-06-03
CCA1256 - 4 2026-06-30
CCA979 - 3 2026-07-02
CCA556 - 3 2026-07-03
CCA555 - 3 2026-07-03
CCA1901 Air China 3 2026-05-04
CCA1349 Air China 3 2026-06-08
CCA1252 Air China 3 2026-05-29
CCA1244 - 3 2026-07-10
CCA980 - 2 2026-07-02
CCA956 Air China 2 2026-06-08
CCA955 Air China 2 2026-06-08
CCA702 - 2 2026-07-08
CCA1902 Air China 2 2026-05-04
CCA1453 - 2 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CCA1241 - Jul 14, 07:40 UTCJul 14, 07:55 UTC15m
2026-07-14 CCA1296 - Jul 14, 05:20 UTCJul 14, 05:40 UTC20m
2026-07-13 CCA9631 - Jul 13, 02:20 UTCJul 13, 02:45 UTC25m
2026-07-12 CCA9666 - Jul 12, 15:01 UTCJul 12, 15:20 UTC20m
2026-07-12 CCA9665 - Jul 12, 02:25 UTCJul 12, 02:35 UTC10m
2026-07-11 CCA724 - Jul 11, 12:40 UTCJul 11, 12:50 UTC10m
2026-07-11 CCA723 - Jul 11, 07:20 UTCJul 11, 07:30 UTC10m
2026-07-11 CCA1226 - Jul 11, 05:01 UTCJul 11, 05:31 UTC30m
2026-07-11 CCA1225 - Jul 11, 00:20 UTCJul 11, 00:40 UTC20m
2026-07-10 CCA1244 - Jul 10, 14:45 UTCJul 10, 15:05 UTC20m
2026-07-09 - - Jul 9, 23:00 UTCJul 9, 23:15 UTC15m
2026-07-08 CCA1414 - Jul 8, 07:35 UTCJul 8, 15:30 UTC7h 55m
2026-07-08 CCA702 - Jul 8, 00:10 UTCJul 8, 00:35 UTC25m
2026-07-07 CCA702 - Jul 7, 19:45 UTCJul 7, 21:00 UTC1h 15m
2026-07-07 CCA701 - Jul 7, 13:30 UTCJul 7, 17:55 UTC4h 25m
2026-07-07 CCA1208 - Jul 7, 07:25 UTCJul 7, 08:55 UTC1h 30m
2026-07-07 CCA1207 - Jul 7, 02:45 UTCJul 7, 03:10 UTC25m
2026-07-06 CCA1208 - Jul 6, 08:00 UTCJul 6, 08:30 UTC30m
2026-07-06 CCA1207 - Jul 6, 02:35 UTCJul 6, 03:00 UTC25m
2026-07-05 CCA4015 - Jul 5, 01:35 UTCJul 5, 01:50 UTC15m
2026-07-03 CCA9741 - Jul 3, 15:10 UTCJul 4, 01:50 UTC10h 40m
2026-07-03 CCA556 - Jul 3, 08:15 UTCJul 3, 10:00 UTC1h 45m
2026-07-03 CCA555 - Jul 3, 01:45 UTCJul 3, 06:50 UTC5h 5m
2026-07-02 CCA980 - Jul 2, 18:35 UTCJul 2, 20:25 UTC1h 50m
2026-07-02 CCA979 - Jul 2, 16:20 UTCJul 2, 16:45 UTC25m
2026-07-02 CCA979 - Jul 2, 12:20 UTCJul 2, 15:40 UTC3h 20m
2026-07-01 CCA556 - Jul 1, 09:15 UTCJul 1, 09:55 UTC40m
2026-07-01 CCA556 - Jul 1, 08:10 UTCJul 1, 08:20 UTC10m
2026-07-01 CCA555 - Jul 1, 05:40 UTCJul 1, 06:00 UTC20m
2026-07-01 CCA555 - Jul 1, 01:30 UTCJul 1, 04:55 UTC3h 25m
2026-06-30 CCA1256 - Jun 30, 17:05 UTCJun 30, 17:25 UTC20m
2026-06-30 CCA1255 - Jun 30, 07:35 UTCJun 30, 07:50 UTC15m
2026-06-30 CCA108 - Jun 30, 02:50 UTCJun 30, 03:05 UTC15m
2026-06-29 CCA107 - Jun 29, 13:19 UTCJun 29, 13:44 UTC25m
2026-06-29 CCA107 - Jun 29, 10:44 UTCJun 29, 10:59 UTC15m
2026-06-28 CCA1464 - Jun 28, 14:45 UTCJun 28, 15:05 UTC20m
2026-06-28 CCA1463 PEK → KWE Jun 28, 08:39 UTCJun 28, 08:55 UTC15m
2026-06-28 CCA1432 CKG → PEK Jun 28, 06:10 UTCJun 28, 06:20 UTC10m
2026-06-28 CCA1431 - Jun 28, 00:09 UTCJun 28, 00:30 UTC20m
2026-06-27 CCA1250 - Jun 27, 18:09 UTCJun 27, 18:24 UTC15m
2026-06-27 CCA1249 - Jun 27, 07:15 UTCJun 27, 07:34 UTC20m
2026-06-27 CCA1454 - Jun 27, 05:04 UTCJun 27, 05:19 UTC15m
2026-06-26 CCA1453 - Jun 26, 23:44 UTCJun 27, 00:05 UTC20m
2026-06-26 CCA1431 - Jun 26, 00:20 UTCJun 26, 00:45 UTC25m
2026-06-20 CCA1399 - Jun 20, 02:14 UTCJun 20, 02:35 UTC20m
2026-06-19 CCA1244 URC → PEK Jun 19, 14:59 UTCJun 19, 15:19 UTC20m
2026-06-12 CCA1578 - Jun 12, 14:30 UTCJun 12, 14:45 UTC15m
2026-06-11 CCA1461 PEK → KWE Jun 11, 23:25 UTCJun 11, 23:40 UTC15m
2026-06-11 CCA960 BKK → PEK Jun 11, 12:50 UTCJun 11, 14:35 UTC1h 45m
2026-06-11 CCA959 PEK → BKK Jun 11, 06:20 UTCJun 11, 11:00 UTC4h 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-225N page for operator, model, and routing details .

Mode-S 7820DB frequently asked

What is Mode-S code 7820DB?
7820DB is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-225N.
Where is Mode-S 7820DB registered?
Mode-S code 7820DB is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7820DB broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7820DB, octal 36020333, decimal 7,872,731.
What flights does 7820DB operate?
Mode-S 7820DB has broadcast 20 distinct callsigns, including CCA108, CCA107, CCA1255, CCA713, CCA1296.