sensors Mode-S transponder

7820DC

ICAO 24-bit transponder address · allocated to China

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

Hex
7820DC
Octal
36020334
Decimal
7,872,732
Country
CN
Tail
B-225P
Type
B38M
No current signal · last broadcast Jul 26, 14:40 UTC
Flights observed
198
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 14:40 UTC

Last known position

Most recent position reported by Mode-S 7820DC.

Country allocation

The ICAO 24-bit address 7820DC 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
CCA980 - 12 2026-07-12
CCA979 - 11 2026-07-12
CCA959 Air China 7 2026-07-25
CCA1215 - 7 2026-07-11
CCA118 - 7 2026-07-16
CCA117 - 7 2026-07-15
CCA960 Air China 6 2026-07-25
CCA1216 - 6 2026-07-12
CCA1208 - 5 2026-07-20
CCA1207 Air China 5 2026-07-20
CCA108 - 5 2026-07-11
CCA107 - 5 2026-07-10
CCA902 Air China 4 2026-07-26
CCA791 - 4 2026-07-01
CCA1244 - 4 2026-07-18
CCA1243 - 4 2026-07-17
CCA9741 Air China 3 2026-07-26
CCA901 Air China 3 2026-07-26
CCA724 Air China 3 2026-07-26
CCA723 Air China 3 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CCA9741 PEK → CKG Jul 26, 14:20 UTCJul 26, 14:40 UTC20m
2026-07-26 CCA724 UBN → PEK Jul 26, 12:00 UTCJul 26, 12:20 UTC20m
2026-07-26 CCA723 PEK → UBN Jul 26, 07:55 UTCJul 26, 08:10 UTC15m
2026-07-26 CCA902 UBN → PEK Jul 26, 05:25 UTCJul 26, 05:45 UTC20m
2026-07-26 CCA901 PEK → UBN Jul 26, 01:00 UTCJul 26, 01:15 UTC15m
2026-07-25 CCA960 BKK → PEK Jul 25, 12:55 UTCJul 25, 14:40 UTC1h 45m
2026-07-25 CCA959 PEK → BKK Jul 25, 10:40 UTCJul 25, 11:25 UTC45m
2026-07-25 CCA959 PEK → BKK Jul 25, 06:35 UTCJul 25, 09:45 UTC3h 10m
2026-07-24 CCA1448 - Jul 24, 09:55 UTCJul 24, 17:40 UTC7h 45m
2026-07-24 CCA1476 KMG → PEK Jul 24, 00:10 UTCJul 24, 08:05 UTC7h 55m
2026-07-23 CCA1256 - Jul 23, 17:05 UTCJul 23, 17:20 UTC15m
2026-07-23 CCA1255 - Jul 23, 07:55 UTCJul 23, 08:10 UTC15m
2026-07-22 CCA1710 PEK → HGH Jul 22, 02:45 UTCJul 22, 02:55 UTC10m
2026-07-21 CCA9741 - Jul 21, 14:25 UTCJul 21, 14:45 UTC20m
2026-07-21 CCA724 - Jul 21, 12:10 UTCJul 21, 12:25 UTC15m
2026-07-21 CCA723 PEK → UBN Jul 21, 07:35 UTCJul 21, 07:50 UTC15m
2026-07-20 CCA1437 PEK → CKG Jul 20, 23:10 UTCJul 20, 23:30 UTC20m
2026-07-20 CCA1456 - Jul 20, 18:10 UTCJul 20, 18:20 UTC10m
2026-07-20 CCA1455 - Jul 20, 12:50 UTCJul 20, 13:15 UTC25m
2026-07-20 CCA1208 - Jul 20, 07:15 UTCJul 20, 07:35 UTC20m
2026-07-20 CCA1207 PEK → LHW Jul 20, 02:35 UTCJul 20, 03:05 UTC30m
2026-07-19 CCA9741 - Jul 19, 14:45 UTCJul 19, 15:00 UTC15m
2026-07-19 CCA556 - Jul 19, 09:35 UTCJul 19, 09:45 UTC10m
2026-07-19 CCA556 - Jul 19, 08:15 UTCJul 19, 08:30 UTC15m
2026-07-19 CCA555 - Jul 19, 05:40 UTCJul 19, 05:55 UTC15m
2026-07-19 CCA555 - Jul 19, 01:30 UTCJul 19, 04:40 UTC3h 10m
2026-07-18 CCA1244 - Jul 18, 13:25 UTCJul 18, 13:45 UTC20m
2026-07-17 CCA1243 - Jul 17, 23:14 UTCJul 17, 23:30 UTC15m
2026-07-16 CCA118 - Jul 16, 01:25 UTCJul 16, 01:40 UTC15m
2026-07-15 CCA117 - Jul 15, 10:15 UTCJul 15, 13:00 UTC2h 45m
2026-07-15 CCA1492 - Jul 15, 06:20 UTCJul 15, 06:35 UTC15m
2026-07-15 CCA1491 - Jul 15, 00:25 UTCJul 15, 00:45 UTC20m
2026-07-14 CCA1250 - Jul 14, 16:35 UTCJul 14, 16:50 UTC15m
2026-07-14 CCA118 - Jul 14, 01:10 UTCJul 14, 01:20 UTC10m
2026-07-13 CCA117 - Jul 13, 12:25 UTCJul 13, 12:50 UTC25m
2026-07-13 CCA117 - Jul 13, 10:00 UTCJul 13, 10:20 UTC20m
2026-07-13 CCA1708 - Jul 13, 02:05 UTCJul 13, 02:15 UTC10m
2026-07-12 CCA980 - Jul 12, 20:05 UTCJul 12, 20:25 UTC20m
2026-07-12 CCA980 - Jul 12, 18:45 UTCJul 12, 19:01 UTC15m
2026-07-12 CCA979 - Jul 12, 12:30 UTCJul 12, 15:35 UTC3h 5m
2026-07-12 CCA1216 - Jul 12, 09:30 UTCJul 12, 09:50 UTC20m
2026-07-11 CCA1215 - Jul 11, 23:10 UTCJul 11, 23:30 UTC20m
2026-07-11 CCA1256 - Jul 11, 17:15 UTCJul 11, 17:30 UTC15m
2026-07-11 CCA1255 - Jul 11, 07:40 UTCJul 11, 08:01 UTC20m
2026-07-11 CCA108 - Jul 11, 02:45 UTCJul 11, 03:01 UTC15m
2026-07-10 CCA107 - Jul 10, 10:55 UTCJul 10, 13:45 UTC2h 50m
2026-07-09 CCA1404 - Jul 9, 23:00 UTCJul 10, 06:45 UTC7h 45m
2026-07-09 CCA960 - Jul 9, 12:55 UTCJul 9, 14:30 UTC1h 35m
2026-07-09 CCA959 - Jul 9, 06:35 UTCJul 9, 11:00 UTC4h 25m
2026-07-08 CCA1260 - Jul 8, 16:30 UTCJul 8, 16:45 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-225P page for operator, model, and routing details .

Mode-S 7820DC frequently asked

What is Mode-S code 7820DC?
7820DC is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-225P.
Where is Mode-S 7820DC registered?
Mode-S code 7820DC is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7820DC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7820DC, octal 36020334, decimal 7,872,732.
What flights does 7820DC operate?
Mode-S 7820DC has broadcast 20 distinct callsigns, including CCA980, CCA979, CCA959, CCA1215, CCA118.