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sensors Mode-S transponder

7820DD

ICAO 24-bit transponder address · allocated to China

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

Hex
7820DD
Octal
36020335
Decimal
7,872,733
Country
CN
Tail
B-225Q
Type
B38M
Broadcasting now · callsign CCA714 · 35,100 ft
Flights observed
187
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 08:50 UTC

Current position

7820DD is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7820DD 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
CCA778 - 7 2026-05-28
CCA1901 Air China 6 2026-05-29
CCA1296 Air China 6 2026-06-07
CCA1295 Air China 6 2026-06-11
CCA1256 - 6 2026-07-09
CCA1255 - 6 2026-07-09
CCA713 Air China 5 2026-06-13
CCA556 Air China 5 2026-07-25
CCA555 Air China 5 2026-07-25
CCA1902 Air China 5 2026-05-29
CCA108 - 5 2026-07-15
CCA107 - 5 2026-07-14
CCA9741 Air China 4 2026-07-25
CCA714 Air China 4 2026-06-13
CCA702 - 4 2026-07-16
CCA1349 Air China 4 2026-07-20
CCA1216 - 4 2026-07-10
CCA1208 Air China 4 2026-07-26
CCA1207 Air China 4 2026-07-26
CCA980 - 3 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CCA1208 LHW → PEK Jul 26, 08:30 UTCJul 26, 08:50 UTC20m
2026-07-26 CCA1207 PEK → LHW Jul 26, 02:35 UTCJul 26, 03:00 UTC25m
2026-07-25 CCA9741 PEK → CKG Jul 25, 14:25 UTCJul 25, 14:45 UTC20m
2026-07-25 CCA556 BKK → PEK Jul 25, 08:15 UTCJul 25, 10:00 UTC1h 45m
2026-07-25 CCA555 PEK → BKK Jul 25, 01:55 UTCJul 25, 06:35 UTC4h 40m
2026-07-24 CCA1246 HTN → PEK Jul 24, 15:40 UTCJul 24, 16:00 UTC20m
2026-07-24 CCA1245 PEK → HTN Jul 24, 05:10 UTCJul 24, 05:20 UTC10m
2026-07-23 CCA1374 CSX → PEK Jul 23, 12:10 UTCJul 23, 12:20 UTC10m
2026-07-23 CCA1373 PEK → CSX Jul 23, 06:50 UTCJul 23, 07:10 UTC20m
2026-07-23 CCA9614 DLU → PEK Jul 23, 04:10 UTCJul 23, 04:40 UTC30m
2026-07-22 CCA9613 PEK → DLU Jul 22, 23:30 UTCJul 22, 23:55 UTC25m
2026-07-21 CCA1250 - Jul 21, 18:10 UTCJul 21, 18:25 UTC15m
2026-07-21 CCA1249 PEK → KHG Jul 21, 05:35 UTCJul 21, 05:45 UTC10m
2026-07-20 CCA1349 PEK → CSX Jul 20, 18:15 UTCJul 20, 18:30 UTC15m
2026-07-20 CCA955 PEK → UBN Jul 20, 09:15 UTCJul 20, 09:30 UTC15m
2026-07-20 CCA118 - Jul 20, 01:40 UTCJul 20, 02:05 UTC25m
2026-07-19 CCA117 - Jul 19, 10:00 UTCJul 19, 13:10 UTC3h 10m
2026-07-19 CCA1208 - Jul 19, 07:25 UTCJul 19, 07:40 UTC15m
2026-07-19 CCA1207 - Jul 19, 02:45 UTCJul 19, 03:05 UTC20m
2026-07-18 CCA9741 - Jul 18, 14:25 UTCJul 18, 14:50 UTC25m
2026-07-18 CCA556 - Jul 18, 09:25 UTCJul 18, 09:55 UTC30m
2026-07-18 CCA556 - Jul 18, 08:05 UTCJul 18, 08:20 UTC15m
2026-07-18 CCA555 - Jul 18, 05:45 UTCJul 18, 06:00 UTC15m
2026-07-18 CCA555 - Jul 18, 01:39 UTCJul 18, 04:40 UTC3h 1m
2026-07-17 CCA9666 - Jul 17, 14:35 UTCJul 17, 14:55 UTC20m
2026-07-16 CCA702 - Jul 16, 16:19 UTCJul 16, 20:45 UTC4h 25m
2026-07-16 CCA701 - Jul 16, 10:04 UTCJul 16, 14:35 UTC4h 30m
2026-07-16 CCA1208 - Jul 16, 07:10 UTCJul 16, 07:25 UTC15m
2026-07-16 CCA1207 - Jul 16, 02:35 UTCJul 16, 03:05 UTC30m
2026-07-15 CCA9741 - Jul 15, 15:15 UTCJul 15, 15:35 UTC20m
2026-07-15 CCA724 - Jul 15, 11:55 UTCJul 15, 12:15 UTC20m
2026-07-15 CCA723 - Jul 15, 07:45 UTCJul 15, 08:00 UTC15m
2026-07-15 CCA108 - Jul 15, 03:05 UTCJul 15, 03:20 UTC15m
2026-07-14 CCA107 - Jul 14, 10:35 UTCJul 14, 13:50 UTC3h 15m
2026-07-14 CCA1847 - Jul 14, 03:00 UTCJul 14, 03:10 UTC10m
2026-07-13 CCA9741 - Jul 13, 14:25 UTCJul 13, 14:45 UTC20m
2026-07-13 CCA556 - Jul 13, 09:30 UTCJul 13, 09:55 UTC25m
2026-07-13 CCA556 - Jul 13, 08:10 UTCJul 13, 08:25 UTC15m
2026-07-13 CCA555 - Jul 13, 06:01 UTCJul 13, 06:20 UTC20m
2026-07-13 CCA555 - Jul 13, 01:55 UTCJul 13, 04:55 UTC3h 0m
2026-07-12 CCA1240 - Jul 12, 14:45 UTCJul 12, 15:01 UTC15m
2026-07-12 CCA1239 - Jul 12, 01:00 UTCJul 12, 01:25 UTC25m
2026-07-11 CCA1928 - Jul 11, 21:10 UTCJul 11, 21:20 UTC10m
2026-07-11 CCA1271 - Jul 11, 04:40 UTCJul 11, 09:20 UTC4h 40m
2026-07-10 CCA1349 - Jul 10, 14:10 UTCJul 10, 14:35 UTC25m
2026-07-10 CCA1216 - Jul 10, 10:40 UTCJul 10, 10:55 UTC15m
2026-07-09 CCA1215 - Jul 9, 22:50 UTCJul 9, 23:00 UTC10m
2026-07-09 CCA1256 - Jul 9, 17:15 UTCJul 9, 17:35 UTC20m
2026-07-09 CCA1255 - Jul 9, 07:40 UTCJul 9, 07:55 UTC15m
2026-07-09 CCA108 - Jul 9, 05:35 UTCJul 9, 05:45 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-225Q page for operator, model, and routing details .

Mode-S 7820DD frequently asked

What is Mode-S code 7820DD?
7820DD is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-225Q.
Where is Mode-S 7820DD registered?
Mode-S code 7820DD is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7820DD broadcasting right now?
Yes. Mode-S 7820DD is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7820DD, octal 36020335, decimal 7,872,733.
What flights does 7820DD operate?
Mode-S 7820DD has broadcast 20 distinct callsigns, including CCA778, CCA1901, CCA1296, CCA1295, CCA1256.