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 2h ago
Flights observed
88
Distinct callsigns
20
Country
CN
Last broadcast
2h 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
CHH722 Hainan Airlines 8 2026-05-31
CHH7940 Hainan Airlines 7 2026-06-01
CHH7203 Hainan Airlines 4 2026-05-04
CHH7037 Hainan Airlines 4 2026-05-20
CHH7812 Hainan Airlines 2 2026-06-03
CHH7687 Hainan Airlines 2 2026-06-02
CHH7432 Hainan Airlines 2 2026-05-01
CHH7431 Hainan Airlines 2 2026-05-01
CHH7167 Hainan Airlines 2 2026-04-20
CHH7090 Hainan Airlines 2 2026-05-13
CHH7042 Hainan Airlines 2 2026-05-15
CHH7815 Hainan Airlines 1 2026-06-04
CHH7811 Hainan Airlines 1 2026-04-19
CHH7581 - 1 2026-04-18
CHH7436 - 1 2026-04-20
CHH7435 Hainan Airlines 1 2026-04-20
CHH7289 Hainan Airlines 1 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-04 CHH7815 PEK → CAN Jun 4, 12:50 UTCJun 4, 13:10 UTC20m
2026-06-04 CHH7190 KWE → PEK Jun 4, 07:45 UTCJun 4, 09:05 UTC1h 20m
2026-06-04 CHH7189 PEK → KWE Jun 4, 00:40 UTCJun 4, 01:05 UTC25m
2026-06-03 CHH7812 CAN → PEK Jun 3, 13:45 UTCJun 3, 14:10 UTC25m
2026-06-03 CHH7812 CAN → PEK Jun 3, 11:20 UTCJun 3, 11:30 UTC10m
2026-06-02 CHH7687 NGB → TAO Jun 2, 00:05 UTCJun 2, 10:10 UTC10h 5m
2026-06-01 CHH7940 BKK → HAK Jun 1, 04:10 UTCJun 1, 05:35 UTC1h 25m
2026-06-01 CHH7939 HAK → BKK Jun 1, 00:55 UTCJun 1, 02:30 UTC1h 35m
2026-05-31 CHH722 BKK → HAK May 31, 12:20 UTCMay 31, 13:05 UTC45m
2026-05-31 CHH721 HAK → BKK May 31, 00:45 UTCMay 31, 10:55 UTC10h 10m
2026-05-30 CHH721 HAK → BKK May 30, 12:40 UTCMay 31, 10:55 UTC22h 15m
2026-05-30 CHH721 HAK → BKK May 30, 09:25 UTCMay 30, 11:15 UTC1h 50m
2026-05-30 CHH7940 BKK → HAK May 30, 04:20 UTCMay 30, 05:00 UTC40m
2026-05-29 CHH7939 HAK → BKK May 29, 12:45 UTCMay 30, 02:20 UTC13h 35m
2026-05-29 CHH721 HAK → BKK May 29, 04:30 UTCMay 29, 10:35 UTC6h 5m
2026-05-29 CHH7939 HAK → BKK May 29, 01:00 UTCMay 29, 02:40 UTC1h 40m
2026-05-28 CHH722 BKK → HAK May 28, 12:40 UTCMay 28, 13:15 UTC35m
2026-05-28 CHH7940 BKK → HAK May 28, 04:15 UTCMay 28, 10:45 UTC6h 30m
2026-05-28 CHH7939 HAK → BKK May 28, 00:45 UTCMay 28, 02:20 UTC1h 35m
2026-05-27 CHH722 BKK → HAK May 27, 12:25 UTCMay 27, 14:00 UTC1h 35m
2026-05-27 CHH721 HAK → BKK May 27, 09:55 UTCMay 27, 10:40 UTC45m
2026-05-26 CHH722 BKK → HAK May 26, 12:30 UTCMay 27, 03:59 UTC15h 30m
2026-05-26 CHH721 HAK → BKK May 26, 04:20 UTCMay 26, 10:44 UTC6h 25m
2026-05-26 CHH7939 HAK → BKK May 26, 01:30 UTCMay 26, 02:19 UTC50m
2026-05-25 CHH7939 HAK → BKK May 25, 04:10 UTCMay 26, 02:19 UTC22h 9m
2026-05-24 CHH722 BKK → HAK May 24, 12:40 UTCMay 25, 02:30 UTC13h 50m
2026-05-24 CHH721 HAK → BKK May 24, 04:05 UTCMay 24, 11:25 UTC7h 20m
2026-05-23 CHH7939 HAK → BKK May 23, 12:25 UTCMay 24, 02:40 UTC14h 16m
2026-05-23 CHH721 HAK → BKK May 23, 04:10 UTCMay 23, 10:45 UTC6h 35m
2026-05-22 CHH7939 HAK → BKK May 22, 09:10 UTCMay 23, 02:35 UTC17h 24m
2026-05-22 CHH7940 BKK → HAK May 22, 04:20 UTCMay 23, 02:35 UTC22h 14m
2026-05-21 CHH7939 HAK → BKK May 21, 12:25 UTCMay 22, 02:30 UTC14h 5m
2026-05-21 CHH7940 BKK → HAK May 21, 04:15 UTCMay 21, 10:30 UTC6h 15m
2026-05-20 CHH7037 HAK → HFE May 20, 09:55 UTCMay 21, 02:35 UTC16h 40m
2026-05-20 CHH7037 HAK → HFE May 20, 04:25 UTCMay 21, 02:35 UTC22h 11m
2026-05-19 CHH722 BKK → HAK May 19, 12:25 UTCMay 20, 02:45 UTC14h 20m
2026-05-19 CHH721 HAK → BKK May 19, 04:20 UTCMay 19, 11:05 UTC6h 45m
2026-05-18 CHH7939 HAK → BKK May 18, 12:30 UTCMay 19, 02:55 UTC14h 24m
2026-05-18 CHH721 HAK → BKK May 18, 04:25 UTCMay 18, 10:55 UTC6h 30m
2026-05-18 CHH7939 HAK → BKK May 18, 02:10 UTCMay 18, 02:45 UTC35m
2026-05-16 CHH7038 HFE → HAK May 16, 14:20 UTCMay 16, 14:41 UTC20m
2026-05-16 CHH7037 HAK → HFE May 16, 09:56 UTCMay 16, 10:50 UTC55m
2026-05-15 CHH7037 HAK → HFE May 15, 13:35 UTCMay 16, 10:50 UTC21h 15m
2026-05-15 CHH7042 HGH → HAK May 15, 08:15 UTCMay 15, 13:50 UTC5h 35m
2026-05-13 CHH7687 NGB → TAO May 13, 23:35 UTCMay 14, 11:45 UTC12h 10m
2026-05-13 CHH7090 NKG → HAK May 13, 15:05 UTCMay 14, 11:45 UTC20h 40m
2026-05-13 CHH7090 NKG → HAK May 13, 11:05 UTCMay 13, 23:50 UTC12h 45m
2026-05-13 CHH7044 TNA → HAK May 13, 08:00 UTCMay 13, 08:20 UTC20m
2026-05-12 CHH7042 HGH → HAK May 12, 07:55 UTCMay 12, 13:51 UTC5h 55m
2026-05-11 CHH7056 HGH → HAK May 11, 13:40 UTCMay 12, 08:00 UTC18h 21m

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 2h 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, CHH722, CHH7940.