Apparatus

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sensors Mode-S transponder

7820F6

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32H8 · AIRBUS A-320neo

Hex
7820F6
Octal
36020366
Decimal
7,872,758
Country
CN
Tail
B-32H8
Type
A20N
No current signal · last broadcast 12h ago
Flights observed
182
Distinct callsigns
20
Country
CN
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 7820F6.

Country allocation

The ICAO 24-bit address 7820F6 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
CHH7939 Hainan Airlines 13 2026-06-01
CHH7204 Hainan Airlines 13 2026-05-05
CHH721 Hainan Airlines 12 2026-05-31
CHH7135 Hainan Airlines 10 2026-07-18
CHH7347 - 9 2026-06-30
CHH7167 - 9 2026-07-13
CHH722 Hainan Airlines 8 2026-05-31
CHH7198 - 8 2026-06-29
CHH7197 Hainan Airlines 8 2026-06-28
CHH7940 Hainan Airlines 7 2026-06-01
CHH7582 - 4 2026-07-14
CHH7435 - 4 2026-07-11
CHH7203 Hainan Airlines 4 2026-05-04
CHH7153 - 4 2026-07-02
CHH7112 - 4 2026-07-08
CHH7111 - 4 2026-07-07
CHH7037 Hainan Airlines 4 2026-05-20
CHH7212 - 3 2026-06-27
CHH7136 - 3 2026-07-19
CHH6361 - 3 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 CHH7136 - Jul 19, 09:40 UTCJul 19, 09:50 UTC10m
2026-07-18 CHH7135 PEK → CSX Jul 18, 23:30 UTCJul 18, 23:50 UTC20m
2026-07-18 CHH6362 - Jul 18, 13:00 UTCJul 18, 13:20 UTC20m
2026-07-18 CHH6361 - Jul 18, 08:35 UTCJul 18, 08:55 UTC20m
2026-07-17 CHH7135 PEK → CSX Jul 17, 23:35 UTCJul 18, 00:00 UTC25m
2026-07-17 CHH6362 - Jul 17, 12:25 UTCJul 17, 12:45 UTC20m
2026-07-17 CHH6361 - Jul 17, 07:40 UTCJul 17, 08:00 UTC20m
2026-07-17 CHH7136 - Jul 17, 05:35 UTCJul 17, 05:45 UTC10m
2026-07-16 CHH7135 - Jul 16, 23:29 UTCJul 16, 23:49 UTC20m
2026-07-16 CHH6365 - Jul 16, 10:25 UTCJul 16, 10:35 UTC10m
2026-07-16 CHH6384 - Jul 16, 07:20 UTCJul 16, 07:45 UTC25m
2026-07-16 CHH6383 - Jul 16, 02:15 UTCJul 16, 02:35 UTC20m
2026-07-15 CHH6361 - Jul 15, 07:30 UTCJul 15, 12:10 UTC4h 40m
2026-07-15 CHH7138 - Jul 15, 03:40 UTCJul 15, 04:10 UTC30m
2026-07-14 CHH7137 - Jul 14, 23:05 UTCJul 14, 23:25 UTC20m
2026-07-14 CHH7582 - Jul 14, 08:30 UTCJul 14, 13:50 UTC5h 20m
2026-07-13 CHH7135 - Jul 13, 23:30 UTCJul 13, 23:50 UTC20m
2026-07-13 CHH7582 - Jul 13, 08:20 UTCJul 13, 08:40 UTC20m
2026-07-13 CHH7167 - Jul 13, 00:10 UTCJul 13, 00:30 UTC20m
2026-07-12 CHH7582 - Jul 12, 08:15 UTCJul 12, 08:35 UTC20m
2026-07-11 CHH7135 - Jul 11, 23:35 UTCJul 11, 23:55 UTC20m
2026-07-11 CHH7436 - Jul 11, 16:50 UTCJul 11, 17:05 UTC15m
2026-07-11 CHH7435 - Jul 11, 11:05 UTCJul 11, 11:25 UTC20m
2026-07-10 CHH7135 - Jul 10, 23:35 UTCJul 10, 23:55 UTC20m
2026-07-09 CHH7135 - Jul 9, 23:30 UTCJul 9, 23:50 UTC20m
2026-07-09 CHH7582 - Jul 9, 08:35 UTCJul 9, 08:45 UTC10m
2026-07-09 CHH7136 - Jul 9, 05:40 UTCJul 9, 05:55 UTC15m
2026-07-08 CHH7135 - Jul 8, 23:30 UTCJul 8, 23:45 UTC15m
2026-07-08 CHH7112 - Jul 8, 15:40 UTCJul 8, 16:05 UTC25m
2026-07-08 CHH7167 - Jul 8, 00:15 UTCJul 8, 00:35 UTC20m
2026-07-07 CHH7111 - Jul 7, 10:55 UTCJul 7, 19:15 UTC8h 20m
2026-07-06 CHH7135 - Jul 6, 23:30 UTCJul 6, 23:50 UTC20m
2026-07-06 CHH7112 - Jul 6, 08:35 UTCJul 6, 16:40 UTC8h 5m
2026-07-06 CHH7167 - Jul 6, 00:10 UTCJul 6, 00:30 UTC20m
2026-07-05 CHH7111 - Jul 5, 08:45 UTCJul 5, 16:25 UTC7h 40m
2026-07-04 CHH7135 - Jul 4, 23:30 UTCJul 4, 23:45 UTC15m
2026-07-04 CHH7111 - Jul 4, 08:45 UTCJul 4, 09:05 UTC20m
2026-07-04 CHH7167 - Jul 4, 00:30 UTCJul 4, 00:55 UTC25m
2026-07-03 CHH7112 - Jul 3, 16:15 UTCJul 3, 16:30 UTC15m
2026-07-03 CHH7111 - Jul 3, 08:15 UTCJul 3, 08:30 UTC15m
2026-07-03 CHH7168 - Jul 3, 06:15 UTCJul 3, 06:30 UTC15m
2026-07-03 CHH7167 - Jul 3, 00:20 UTCJul 3, 00:40 UTC20m
2026-07-02 CHH7153 - Jul 2, 09:40 UTCJul 2, 10:00 UTC20m
2026-07-02 CHH7167 - Jul 2, 00:15 UTCJul 2, 00:35 UTC20m
2026-07-01 CHH7112 - Jul 1, 08:25 UTCJul 1, 16:00 UTC7h 35m
2026-07-01 CHH7167 - Jul 1, 00:30 UTCJul 1, 00:45 UTC15m
2026-06-30 CHH7347 - Jun 30, 06:55 UTCJun 30, 07:15 UTC20m
2026-06-29 CHH7577 - Jun 29, 23:19 UTCJun 29, 23:29 UTC10m
2026-06-29 CHH7347 - Jun 29, 06:44 UTCJun 29, 07:09 UTC25m
2026-06-29 CHH7198 - Jun 29, 03:34 UTCJun 29, 03:54 UTC20m

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-32H8 page for operator, model, and routing details .

Mode-S 7820F6 frequently asked

What is Mode-S code 7820F6?
7820F6 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32H8.
Where is Mode-S 7820F6 registered?
Mode-S code 7820F6 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7820F6 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7820F6, octal 36020366, decimal 7,872,758.
What flights does 7820F6 operate?
Mode-S 7820F6 has broadcast 20 distinct callsigns, including CHH7939, CHH7204, CHH721, CHH7135, CHH7347.