Apparatus

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sensors Mode-S transponder

7820FB

ICAO 24-bit transponder address · allocated to China

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

Hex
7820FB
Octal
36020373
Decimal
7,872,763
Country
CN
Tail
B-225V
Type
B38M
No current signal · last broadcast Jul 26, 14:20 UTC
Flights observed
250
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 14:20 UTC

Last known position

Most recent position reported by Mode-S 7820FB.

Country allocation

The ICAO 24-bit address 7820FB 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
CHH7771 - 13 2026-06-20
CHH755 Hainan Airlines 12 2026-07-26
CHH702 Hainan Airlines 12 2026-07-25
CHH701 Hainan Airlines 11 2026-07-25
CHH7772 - 10 2026-06-20
CHH7175 - 10 2026-06-19
CHH756 Hainan Airlines 9 2026-07-26
CHH7156 - 7 2026-06-17
CHH7155 Hainan Airlines 7 2026-06-08
CHH7924 - 6 2026-07-04
CHH7770 - 6 2026-06-18
CHH7769 - 6 2026-06-18
CHH7630 - 6 2026-06-18
CHH7923 - 5 2026-07-04
CHH7176 - 5 2026-06-19
CHH7482 Hainan Airlines 4 2026-07-25
CHH7398 - 4 2026-06-17
CHH7397 Hainan Airlines 4 2026-06-16
CHH7289 Hainan Airlines 4 2026-06-26
CHH429 Hainan Airlines 4 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CHH756 KUL → HAK Jul 26, 14:05 UTCJul 26, 14:20 UTC15m
2026-07-26 CHH497 BAR → KUL Jul 26, 04:50 UTCJul 26, 12:35 UTC7h 46m
2026-07-26 CHH755 HAK → KUL Jul 26, 02:45 UTCJul 26, 03:15 UTC30m
2026-07-25 CHH702 CGK → HAK Jul 25, 12:20 UTCJul 25, 13:55 UTC1h 35m
2026-07-25 CHH701 HAK → CGK Jul 25, 10:30 UTCJul 25, 10:45 UTC15m
2026-07-25 CHH7482 PEK → HAK Jul 25, 01:40 UTCJul 25, 09:15 UTC7h 35m
2026-07-24 CHH7144 KHN → PEK Jul 24, 12:05 UTCJul 24, 12:30 UTC25m
2026-07-24 CHH7143 PEK → KHN Jul 24, 07:15 UTCJul 24, 07:45 UTC30m
2026-07-22 CHH7082 PEK → HAK Jul 22, 12:50 UTCJul 23, 08:10 UTC19h 20m
2026-07-22 CHH7082 PEK → HAK Jul 22, 12:40 UTCJul 23, 08:10 UTC19h 30m
2026-07-22 CHH6385 PEK → KWE Jul 22, 02:00 UTCJul 22, 02:20 UTC20m
2026-07-20 CHH450 - Jul 20, 12:55 UTCJul 20, 15:45 UTC2h 50m
2026-07-20 CHH449 - Jul 20, 08:05 UTCJul 20, 11:20 UTC3h 15m
2026-07-19 CHH449 - Jul 19, 12:50 UTCJul 20, 11:20 UTC22h 30m
2026-07-19 CHH702 - Jul 19, 12:15 UTCJul 20, 10:45 UTC22h 30m
2026-07-19 CHH701 HAK → CGK Jul 19, 10:30 UTCJul 19, 10:45 UTC15m
2026-07-19 CHH7482 PEK → HAK Jul 19, 01:15 UTCJul 19, 01:40 UTC25m
2026-07-17 CHH756 KUL → HAK Jul 17, 14:10 UTCJul 18, 08:10 UTC18h 1m
2026-07-17 CHH755 - Jul 17, 12:25 UTCJul 17, 12:50 UTC25m
2026-07-17 - - Jul 17, 06:10 UTCJul 17, 06:20 UTC10m
2026-07-16 CHH7582 - Jul 16, 08:20 UTCJul 16, 08:45 UTC25m
2026-07-14 CHH448 - Jul 14, 20:50 UTCJul 15, 06:15 UTC9h 24m
2026-07-14 CHH7909 - Jul 14, 18:25 UTCJul 14, 18:50 UTC25m
2026-07-13 CHH7909 - Jul 13, 20:50 UTCJul 14, 18:50 UTC22h 0m
2026-07-13 CHH447 - Jul 13, 05:31 UTCJul 13, 18:50 UTC13h 20m
2026-07-12 CHH447 - Jul 12, 20:50 UTCJul 13, 18:50 UTC22h 0m
2026-07-12 CHH448 - Jul 12, 20:40 UTCJul 13, 18:45 UTC22h 5m
2026-07-12 CHH447 - Jul 12, 18:15 UTCJul 12, 18:35 UTC20m
2026-07-11 CHH448 - Jul 11, 20:40 UTCJul 12, 10:35 UTC13h 55m
2026-07-11 CHH7909 HAK → SIN Jul 11, 18:25 UTCJul 11, 18:50 UTC25m
2026-07-10 CHH756 - Jul 10, 13:10 UTCJul 10, 13:35 UTC25m
2026-07-10 CHH755 - Jul 10, 11:20 UTCJul 10, 11:50 UTC30m
2026-07-09 CHH756 - Jul 9, 13:10 UTCJul 9, 13:25 UTC15m
2026-07-09 CHH755 - Jul 9, 11:10 UTCJul 9, 11:35 UTC25m
2026-07-08 CHH755 - Jul 8, 13:15 UTCJul 9, 11:35 UTC22h 20m
2026-07-08 CHH497 - Jul 8, 04:30 UTCJul 8, 11:35 UTC7h 5m
2026-07-08 CHH755 - Jul 8, 02:50 UTCJul 8, 03:15 UTC25m
2026-07-07 CHH756 - Jul 7, 13:05 UTCJul 7, 13:30 UTC25m
2026-07-06 CHH702 - Jul 6, 12:50 UTCJul 7, 11:30 UTC22h 40m
2026-07-06 CHH702 - Jul 6, 12:10 UTCJul 6, 13:40 UTC1h 30m
2026-07-06 CHH701 - Jul 6, 10:25 UTCJul 6, 10:40 UTC15m
2026-07-05 CHH7082 - Jul 5, 12:35 UTCJul 5, 12:50 UTC15m
2026-07-05 CHH7238 - Jul 5, 08:25 UTCJul 5, 08:45 UTC20m
2026-07-05 CHH7237 - Jul 5, 03:15 UTCJul 5, 03:30 UTC15m
2026-07-04 CHH7924 - Jul 4, 06:40 UTCJul 4, 09:50 UTC3h 10m
2026-07-04 CHH7923 - Jul 4, 04:00 UTCJul 4, 04:15 UTC15m
2026-07-03 CHH7924 - Jul 3, 09:10 UTCJul 4, 01:35 UTC16h 25m
2026-07-03 CHH7924 - Jul 3, 06:30 UTCJul 3, 06:45 UTC15m
2026-07-02 CHH7923 - Jul 2, 13:30 UTCJul 3, 04:20 UTC14h 50m
2026-07-02 CHH7613 PEK → PVG Jul 2, 00:15 UTCJul 2, 00:25 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-225V page for operator, model, and routing details .

Mode-S 7820FB frequently asked

What is Mode-S code 7820FB?
7820FB is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-225V.
Where is Mode-S 7820FB registered?
Mode-S code 7820FB is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7820FB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7820FB, octal 36020373, decimal 7,872,763.
What flights does 7820FB operate?
Mode-S 7820FB has broadcast 20 distinct callsigns, including CHH7771, CHH755, CHH702, CHH701, CHH7772.