Apparatus

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sensors Mode-S transponder

7804FA

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5416 · BOEING 737-800

Hex
7804FA
Octal
36002372
Decimal
7,865,594
Country
CN
Tail
B-5416
Type
B738
No current signal · last broadcast 1h ago
Flights observed
47
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7804FA.

Country allocation

The ICAO 24-bit address 7804FA 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
CHH7654 Hainan Airlines 3 2026-04-25
CHH7644 Hainan Airlines 3 2026-05-22
CHH7722 Hainan Airlines 2 2026-06-07
CHH7721 Hainan Airlines 2 2026-06-07
CHH7638 Hainan Airlines 2 2026-05-24
CHH7074 Hainan Airlines 2 2026-05-07
CHH7889 Hainan Airlines 1 2026-05-17
CHH780 Hainan Airlines 1 2026-06-10
CHH779 Hainan Airlines 1 2026-06-10
CHH7776 - 1 2026-06-01
CHH7775 Hainan Airlines 1 2026-06-01
CHH7746 - 1 2026-06-03
CHH7745 - 1 2026-06-03
CHH7735 Hainan Airlines 1 2026-06-01
CHH7732 Hainan Airlines 1 2026-06-06
CHH7731 Hainan Airlines 1 2026-06-05
CHH7716 Hainan Airlines 1 2026-06-07
CHH7674 - 1 2026-04-18
CHH7613 Hainan Airlines 1 2026-06-07
CHH7605 Hainan Airlines 1 2026-06-08

Recent flights last 47

DateFlightRouteTakeoffLandingDuration
2026-06-10 CHH780 HKG → HAK Jun 10, 13:15 UTCJun 10, 13:30 UTC15m
2026-06-10 CHH779 HAK → HKG Jun 10, 10:50 UTCJun 10, 11:00 UTC10m
2026-06-10 CHH7182 PEK → HAK Jun 10, 05:20 UTCJun 10, 05:40 UTC20m
2026-06-09 CHH7187 PEK → WUH Jun 9, 00:55 UTCJun 9, 01:10 UTC15m
2026-06-08 CHH7605 PEK → SHA Jun 8, 07:50 UTCJun 8, 08:00 UTC10m
2026-06-07 CHH7613 PEK → PVG Jun 7, 23:45 UTCJun 7, 23:55 UTC10m
2026-06-07 CHH7716 TNA → SZX Jun 7, 14:05 UTCJun 7, 14:15 UTC10m
2026-06-07 CHH7722 PVG → SZX Jun 7, 10:00 UTCJun 7, 10:10 UTC10m
2026-06-07 CHH7721 SZX → PVG Jun 7, 01:30 UTCJun 7, 01:40 UTC10m
2026-06-06 CHH7732 SZX → SYX Jun 6, 14:14 UTCJun 6, 14:25 UTC10m
2026-06-05 CHH7731 SYX → SZX Jun 5, 23:50 UTCJun 6, 00:05 UTC15m
2026-06-05 CHH7256 NKG → SZX Jun 5, 17:20 UTCJun 5, 17:35 UTC15m
2026-06-05 CHH7255 SZX → NKG Jun 5, 11:20 UTCJun 5, 11:35 UTC15m
2026-06-04 CHH7722 PVG → SZX Jun 4, 08:15 UTCJun 4, 08:45 UTC30m
2026-06-04 CHH7721 SZX → PVG Jun 4, 01:45 UTCJun 4, 01:55 UTC10m
2026-06-03 CHH7746 - Jun 3, 09:00 UTCJun 3, 09:25 UTC25m
2026-06-03 CHH7745 - Jun 3, 02:55 UTCJun 3, 03:05 UTC10m
2026-06-02 CHH7396 HGH → SZX Jun 2, 11:30 UTCJun 2, 11:45 UTC15m
2026-06-02 CHH7395 SZX → HGH Jun 2, 06:40 UTCJun 2, 06:50 UTC10m
2026-06-01 CHH7735 SZX → CGO Jun 1, 22:30 UTCJun 1, 22:45 UTC15m
2026-06-01 CHH7776 - Jun 1, 16:45 UTCJun 1, 16:55 UTC10m
2026-06-01 CHH7775 SZX → TYN Jun 1, 05:45 UTCJun 1, 05:55 UTC10m
2026-05-29 CHH7137 PEK → XIY May 29, 23:10 UTCMay 29, 23:30 UTC20m
2026-05-29 CHH7163 - May 29, 08:15 UTCMay 29, 08:40 UTC25m
2026-05-24 CHH7638 ZUH → CGO May 24, 05:55 UTCMay 24, 06:10 UTC15m
2026-05-22 CHH7644 ZUH → HFE May 22, 10:05 UTCMay 22, 10:20 UTC15m
2026-05-21 CHH7644 ZUH → HFE May 21, 11:55 UTCMay 21, 12:05 UTC10m
2026-05-19 CHH7638 ZUH → CGO May 19, 06:40 UTCMay 19, 07:00 UTC20m
2026-05-18 CHH7644 ZUH → HFE May 18, 08:20 UTCMay 18, 08:30 UTC10m
2026-05-17 CHH7105 PEK → DLC May 17, 23:30 UTCMay 17, 23:40 UTC10m
2026-05-17 CHH7889 PEK → YZY May 17, 11:15 UTCMay 17, 11:25 UTC10m
2026-05-10 CHH7028 SZX → HAK May 10, 15:24 UTCMay 10, 15:39 UTC15m
2026-05-10 CHH7558 CKG → SZX May 10, 00:20 UTCMay 10, 00:30 UTC10m
2026-05-07 CHH7074 HRB → HAK May 7, 06:55 UTCMay 7, 16:35 UTC9h 40m
2026-05-06 CHH7074 HRB → HAK May 6, 11:10 UTCMay 7, 07:20 UTC20h 9m
2026-05-06 CHH7505 HRB → CGO May 6, 01:10 UTCMay 6, 01:20 UTC10m
2026-05-05 CHH7280 SYX → PEK May 5, 12:00 UTCMay 5, 12:10 UTC10m
2026-05-02 CHH7315 SYX → KHN May 2, 00:30 UTCMay 2, 04:10 UTC3h 41m
2026-04-30 CHH7384 HGH → SYX Apr 30, 09:45 UTCApr 30, 14:40 UTC4h 55m
2026-04-26 CHH7320 PVG → HAK Apr 26, 12:30 UTCApr 27, 03:50 UTC15h 20m
2026-04-25 CHH7654 JUH → TYN Apr 25, 15:20 UTCApr 26, 10:05 UTC18h 45m
2026-04-25 CHH7654 JUH → TYN Apr 25, 12:35 UTCApr 26, 10:05 UTC21h 30m
2026-04-25 CHH7654 JUH → TYN Apr 25, 12:25 UTCApr 26, 10:05 UTC21h 40m
2026-04-25 CHH7216 NKG → HAK Apr 25, 04:35 UTCApr 25, 23:40 UTC19h 5m
2026-04-25 CHH7006 CAN → HAK Apr 25, 01:35 UTCApr 25, 01:45 UTC10m
2026-04-19 CHH7125 PEK → DOY Apr 19, 12:30 UTCApr 19, 12:40 UTC10m
2026-04-18 CHH7674 - Apr 18, 14:15 UTCApr 18, 14:25 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-5416 page for operator, model, and routing details .

Mode-S 7804FA frequently asked

What is Mode-S code 7804FA?
7804FA is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5416.
Where is Mode-S 7804FA registered?
Mode-S code 7804FA is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7804FA broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7804FA, octal 36002372, decimal 7,865,594.
What flights does 7804FA operate?
Mode-S 7804FA has broadcast 20 distinct callsigns, including CHH7654, CHH7644, CHH7722, CHH7721, CHH7638.