Apparatus

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sensors Mode-S transponder

7821F2

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32KQ · AIRBUS A-320neo

Hex
7821F2
Octal
36020762
Decimal
7,873,010
Country
CN
Tail
B-32KQ
Type
A20N
Broadcasting now · callsign CQH7057 · 34,100 ft
Flights observed
99
Distinct callsigns
20
Country
CN
Last broadcast
Jul 24, 04:25 UTC

Current position

7821F2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7821F2 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
CQH6523 - 9 2026-06-28
CQH8666 Spring Airlines 4 2026-07-20
CQH8598 - 4 2026-07-18
CQH8597 Spring Airlines 3 2026-07-18
CQH7501 - 3 2026-07-13
CQH7281 Spring Airlines 3 2026-07-21
CQH8792 - 2 2026-06-30
CQH8791 - 2 2026-06-29
CQH8785 - 2 2026-05-19
CQH8781 - 2 2026-07-12
CQH8779 Spring Airlines 2 2026-05-29
CQH8688 - 2 2026-07-11
CQH8522 Spring Airlines 2 2026-05-24
CQH8521 Spring Airlines 2 2026-07-19
CQH8511 Spring Airlines 2 2026-06-10
CQH7752 Spring Airlines 2 2026-05-25
CQH7654 - 2 2026-07-12
CQH7502 - 2 2026-07-13
CQH7432 Spring Airlines 2 2026-04-25
CQH7431 Spring Airlines 2 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 CQH6516 KUL → PVG Jul 23, 19:15 UTCJul 24, 04:25 UTC9h 10m
2026-07-23 CQH6516 KUL → PVG Jul 23, 16:00 UTCJul 23, 16:15 UTC15m
2026-07-23 CQH6515 PVG → KUL Jul 23, 09:40 UTCJul 23, 14:10 UTC4h 30m
2026-07-21 CQH7282 BKK → PVG Jul 21, 11:45 UTCJul 21, 14:05 UTC2h 20m
2026-07-21 CQH7281 PVG → BKK Jul 21, 02:40 UTCJul 21, 10:10 UTC7h 30m
2026-07-20 CQH7281 PVG → BKK Jul 20, 11:45 UTCJul 21, 10:10 UTC22h 24m
2026-07-20 CQH8666 HKT → PVG Jul 20, 09:15 UTCJul 21, 08:00 UTC22h 44m
2026-07-20 CQH8666 HKT → PVG Jul 20, 05:35 UTCJul 21, 03:00 UTC21h 25m
2026-07-19 CQH8666 HKT → PVG Jul 19, 17:05 UTCJul 20, 11:55 UTC18h 50m
2026-07-19 CQH8666 HKT → PVG Jul 19, 15:20 UTCJul 20, 11:55 UTC20h 35m
2026-07-19 CQH8521 PVG → HKT Jul 19, 06:35 UTCJul 20, 06:20 UTC23h 45m
2026-07-19 CQH8521 PVG → HKT Jul 19, 01:55 UTCJul 19, 22:20 UTC20h 25m
2026-07-18 CQH8598 - Jul 18, 13:45 UTCJul 19, 06:45 UTC17h 0m
2026-07-18 CQH8598 - Jul 18, 10:35 UTCJul 19, 06:45 UTC20h 10m
2026-07-18 CQH8597 PVG → HKG Jul 18, 04:50 UTCJul 18, 08:10 UTC3h 20m
2026-07-16 CQH6600 - Jul 16, 10:35 UTCJul 16, 14:35 UTC4h 0m
2026-07-14 CQH6294 - Jul 14, 21:25 UTCJul 14, 21:35 UTC10m
2026-07-14 CQH6294 - Jul 14, 20:15 UTCJul 14, 20:30 UTC15m
2026-07-14 CQH6293 - Jul 14, 16:05 UTCJul 14, 17:25 UTC1h 20m
2026-07-13 CQH7502 - Jul 13, 04:25 UTCJul 13, 10:40 UTC6h 15m
2026-07-13 CQH7501 - Jul 13, 02:20 UTCJul 13, 02:40 UTC20m
2026-07-13 CQH7501 - Jul 13, 01:10 UTCJul 13, 01:25 UTC15m
2026-07-12 CQH7654 - Jul 12, 04:40 UTCJul 13, 01:25 UTC20h 45m
2026-07-12 CQH7654 - Jul 12, 03:45 UTCJul 13, 01:25 UTC21h 40m
2026-07-12 CQH8781 - Jul 12, 00:05 UTCJul 12, 05:01 UTC4h 55m
2026-07-11 CQH8781 - Jul 11, 22:05 UTCJul 11, 22:15 UTC10m
2026-07-11 CQH8688 - Jul 11, 17:35 UTCJul 11, 17:55 UTC20m
2026-07-11 CQH7019 - Jul 11, 12:30 UTCJul 11, 12:40 UTC10m
2026-07-04 CQH7608 - Jul 4, 00:10 UTCJul 4, 00:20 UTC10m
2026-07-01 CQH7091 - Jul 1, 11:00 UTCJul 1, 11:15 UTC15m
2026-06-30 CQH8792 - Jun 30, 05:10 UTCJun 30, 07:35 UTC2h 25m
2026-06-29 CQH8791 - Jun 29, 10:44 UTCJun 30, 04:00 UTC17h 16m
2026-06-28 CQH6523 - Jun 28, 14:59 UTCJun 29, 09:34 UTC18h 35m
2026-06-28 CQH6523 - Jun 28, 13:59 UTCJun 29, 09:34 UTC19h 35m
2026-06-28 CQH6523 - Jun 28, 10:50 UTCJun 29, 09:34 UTC22h 45m
2026-06-28 CQH6523 - Jun 28, 09:05 UTCJun 28, 09:25 UTC20m
2026-06-28 CQH6523 - Jun 28, 05:04 UTCJun 28, 06:15 UTC1h 10m
2026-06-21 CQH6182 - Jun 21, 11:40 UTCJun 21, 12:04 UTC25m
2026-06-21 CQH6181 - Jun 21, 09:35 UTCJun 21, 10:14 UTC40m
2026-06-19 CQH6342 - Jun 19, 14:34 UTCJun 19, 14:44 UTC10m
2026-06-15 CQH7392 - Jun 15, 16:45 UTCJun 15, 17:04 UTC20m
2026-06-12 CQH7348 SGN → CAN Jun 12, 15:10 UTCJun 12, 15:25 UTC15m
2026-06-12 CQH6922 KUL → CAN Jun 12, 05:35 UTCJun 12, 06:10 UTC35m
2026-06-12 CQH6922 KUL → CAN Jun 12, 02:25 UTCJun 12, 02:40 UTC15m
2026-06-12 CQH6921 CAN → KUL Jun 12, 00:30 UTCJun 12, 00:55 UTC25m
2026-06-11 CQH6921 CAN → KUL Jun 11, 21:45 UTCJun 11, 21:55 UTC10m
2026-06-10 CQH8934 CNX → CAN Jun 10, 14:50 UTCJun 10, 16:10 UTC1h 20m
2026-06-10 CQH8511 PVG → CNX Jun 10, 13:10 UTCJun 10, 13:30 UTC20m
2026-06-10 CQH8511 PVG → CNX Jun 10, 05:25 UTCJun 10, 12:30 UTC7h 5m
2026-06-05 CQH6610 FUK → PVG Jun 5, 02:55 UTCJun 5, 03:05 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-32KQ page for operator, model, and routing details .

Mode-S 7821F2 frequently asked

What is Mode-S code 7821F2?
7821F2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32KQ.
Where is Mode-S 7821F2 registered?
Mode-S code 7821F2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7821F2 broadcasting right now?
Yes. Mode-S 7821F2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7821F2, octal 36020762, decimal 7,873,010.
What flights does 7821F2 operate?
Mode-S 7821F2 has broadcast 20 distinct callsigns, including CQH6523, CQH8666, CQH8598, CQH8597, CQH7501.