Apparatus

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sensors Mode-S transponder

7820F4

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32H6 · AIRBUS A-320neo

Hex
7820F4
Octal
36020364
Decimal
7,872,756
Country
CN
Tail
B-32H6
Type
A20N
No current signal · last broadcast 51m ago
Flights observed
75
Distinct callsigns
20
Country
CN
Last broadcast
51m ago

Last known position

Most recent position reported by Mode-S 7820F4.

Country allocation

The ICAO 24-bit address 7820F4 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
CHH7167 Hainan Airlines 9 2026-05-20
CHH7245 Hainan Airlines 7 2026-05-30
CHH7246 Hainan Airlines 6 2026-05-30
CHH7197 Hainan Airlines 6 2026-05-30
CHH7112 Hainan Airlines 6 2026-05-19
CHH7582 Hainan Airlines 4 2026-04-29
CHH7198 Hainan Airlines 4 2026-05-30
CHH7135 Hainan Airlines 4 2026-04-30
CHH7111 Hainan Airlines 4 2026-05-05
CHH7939 Hainan Airlines 3 2026-06-02
CHH721 Hainan Airlines 3 2026-06-03
CHH7168 Hainan Airlines 3 2026-05-05
CHH7577 Hainan Airlines 2 2026-05-28
CHH7435 Hainan Airlines 2 2026-05-28
CHH7143 Hainan Airlines 2 2026-05-26
CHH7138 Hainan Airlines 2 2026-05-26
CHH7940 Hainan Airlines 1 2026-06-02
CHH7613 Hainan Airlines 1 2026-05-25
CHH7548 Hainan Airlines 1 2026-05-20
CHH7447 Hainan Airlines 1 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 CHH721 HAK → BKK Jun 3, 04:10 UTCJun 3, 10:40 UTC6h 30m
2026-06-02 CHH7939 HAK → BKK Jun 2, 12:35 UTCJun 3, 02:45 UTC14h 10m
2026-06-02 CHH721 HAK → BKK Jun 2, 08:45 UTCJun 2, 10:35 UTC1h 50m
2026-06-02 CHH7940 BKK → HAK Jun 2, 04:15 UTCJun 2, 05:45 UTC1h 30m
2026-06-01 CHH7939 HAK → BKK Jun 1, 11:10 UTCJun 2, 02:20 UTC15h 10m
2026-05-30 CHH7197 PEK → LHW May 30, 23:10 UTCMay 30, 23:35 UTC25m
2026-05-30 CHH7246 URC → PEK May 30, 14:45 UTCMay 30, 15:05 UTC20m
2026-05-30 CHH7245 PEK → URC May 30, 06:30 UTCMay 30, 06:50 UTC20m
2026-05-30 CHH7198 LHW → PEK May 30, 03:50 UTCMay 30, 04:00 UTC10m
2026-05-29 CHH7197 PEK → LHW May 29, 23:20 UTCMay 29, 23:30 UTC10m
2026-05-29 CHH7246 URC → PEK May 29, 15:00 UTCMay 29, 15:20 UTC20m
2026-05-29 CHH7245 PEK → URC May 29, 06:20 UTCMay 29, 06:40 UTC20m
2026-05-28 CHH7577 PEK → HGH May 28, 23:15 UTCMay 28, 23:25 UTC10m
2026-05-28 CHH7435 HGH → HET May 28, 09:15 UTCMay 28, 09:40 UTC25m
2026-05-27 CHH7212 KMG → PEK May 27, 23:40 UTCMay 28, 07:20 UTC7h 40m
2026-05-27 CHH7246 URC → PEK May 27, 15:35 UTCMay 27, 15:50 UTC15m
2026-05-27 CHH7245 PEK → URC May 27, 07:05 UTCMay 27, 07:20 UTC15m
2026-05-26 CHH7138 XIY → PEK May 26, 22:59 UTCMay 27, 04:09 UTC5h 10m
2026-05-26 CHH7143 PEK → KHN May 26, 07:05 UTCMay 26, 07:15 UTC10m
2026-05-25 CHH7613 PEK → PVG May 25, 23:45 UTCMay 25, 23:54 UTC10m
2026-05-21 CHH7246 URC → PEK May 21, 15:20 UTCMay 21, 15:40 UTC20m
2026-05-21 CHH7245 PEK → URC May 21, 06:25 UTCMay 21, 06:45 UTC20m
2026-05-21 CHH7198 LHW → PEK May 21, 03:40 UTCMay 21, 04:00 UTC20m
2026-05-20 CHH7197 PEK → LHW May 20, 23:00 UTCMay 20, 23:20 UTC20m
2026-05-20 CHH7548 TFU → PEK May 20, 14:50 UTCMay 20, 15:05 UTC15m
2026-05-20 CHH7447 PEK → TFU May 20, 08:15 UTCMay 20, 08:30 UTC15m
2026-05-20 CHH7167 PEK → CKG May 20, 00:25 UTCMay 20, 00:50 UTC25m
2026-05-19 CHH7112 KMG → PEK May 19, 08:30 UTCMay 19, 16:10 UTC7h 40m
2026-05-19 CHH7167 PEK → CKG May 19, 00:25 UTCMay 19, 00:50 UTC25m
2026-05-18 CHH7112 KMG → PEK May 18, 08:15 UTCMay 18, 16:00 UTC7h 45m
2026-05-18 CHH7167 PEK → CKG May 18, 00:30 UTCMay 18, 00:50 UTC20m
2026-05-17 CHH7143 PEK → KHN May 17, 11:40 UTCMay 17, 11:55 UTC15m
2026-05-06 CHH7167 PEK → CKG May 6, 00:15 UTCMay 6, 00:35 UTC20m
2026-05-05 CHH7112 KMG → PEK May 5, 15:50 UTCMay 5, 16:06 UTC15m
2026-05-05 CHH7111 PEK → KMG May 5, 08:45 UTCMay 5, 09:05 UTC20m
2026-05-05 CHH7168 CKG → PEK May 5, 06:30 UTCMay 5, 06:40 UTC10m
2026-05-05 CHH7167 PEK → CKG May 5, 00:15 UTCMay 5, 00:35 UTC20m
2026-05-04 CHH7436 HET → HGH May 4, 14:40 UTCMay 4, 14:55 UTC15m
2026-05-04 CHH7435 HGH → HET May 4, 09:25 UTCMay 4, 09:40 UTC15m
2026-05-04 CHH7168 CKG → PEK May 4, 06:30 UTCMay 4, 06:40 UTC10m
2026-05-04 CHH7167 PEK → CKG May 4, 00:10 UTCMay 4, 00:30 UTC20m
2026-05-03 CHH7112 KMG → PEK May 3, 15:55 UTCMay 3, 16:15 UTC20m
2026-05-03 CHH7111 PEK → KMG May 3, 08:30 UTCMay 3, 08:55 UTC25m
2026-05-03 CHH7167 PEK → CKG May 3, 00:10 UTCMay 3, 00:30 UTC20m
2026-05-02 CHH7112 KMG → PEK May 2, 16:00 UTCMay 2, 16:20 UTC20m
2026-05-02 CHH7111 PEK → KMG May 2, 08:25 UTCMay 2, 08:50 UTC25m
2026-05-02 CHH7167 PEK → CKG May 2, 00:25 UTCMay 2, 00:45 UTC20m
2026-05-01 CHH7112 KMG → PEK May 1, 16:50 UTCMay 1, 17:05 UTC15m
2026-05-01 CHH7111 PEK → KMG May 1, 08:15 UTCMay 1, 08:35 UTC20m
2026-04-30 CHH7135 PEK → CSX Apr 30, 23:10 UTCApr 30, 23:30 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-32H6 page for operator, model, and routing details .

Mode-S 7820F4 frequently asked

What is Mode-S code 7820F4?
7820F4 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32H6.
Where is Mode-S 7820F4 registered?
Mode-S code 7820F4 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7820F4 broadcasting right now?
No active broadcast right now. Last signal was 51m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7820F4, octal 36020364, decimal 7,872,756.
What flights does 7820F4 operate?
Mode-S 7820F4 has broadcast 20 distinct callsigns, including CHH7167, CHH7245, CHH7246, CHH7197, CHH7112.