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sensors Mode-S transponder

78174F

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-20CQ · BOEING 737 MAX 8

Hex
78174F
Octal
36013517
Decimal
7,870,287
Country
CN
Tail
B-20CQ
Type
B38M
Broadcasting now · callsign CXA8684 · 34,000 ft
Flights observed
65
Distinct callsigns
20
Country
CN
Last broadcast
3h ago

Current position

78174F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 78174F 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
CXA8673 Xiamen Airlines 15 2026-06-02
CXA8674 Xiamen Airlines 11 2026-05-28
CXA8694 Xiamen Airlines 7 2026-05-27
CXA8684 Xiamen Airlines 6 2026-05-25
CXA8359 Xiamen Airlines 3 2026-05-30
CXA8688 Xiamen Airlines 2 2026-04-28
CXA8687 Xiamen Airlines 2 2026-04-28
CXA8683 Xiamen Airlines 2 2026-04-27
CXA864 Xiamen Airlines 2 2026-06-01
CXA8230 Xiamen Airlines 2 2026-05-09
CXA8229 Xiamen Airlines 2 2026-05-09
CXA863 Xiamen Airlines 1 2026-06-01
CXA8605 Xiamen Airlines 1 2026-04-14
CXA8429 Xiamen Airlines 1 2026-04-16
CXA8425 - 1 2026-04-16
CXA8406 - 1 2026-04-16
CXA8370 Xiamen Airlines 1 2026-05-16
CXA8369 Xiamen Airlines 1 2026-05-16
CXA8307 Xiamen Airlines 1 2026-05-31
CXA8070 Xiamen Airlines 1 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 CXA8673 CKG → CGK Jun 2, 17:25 UTCJun 2, 21:30 UTC4h 5m
2026-06-01 CXA864 SIN → HGH Jun 1, 13:10 UTCJun 1, 15:35 UTC2h 25m
2026-06-01 CXA863 HGH → SIN Jun 1, 08:45 UTCJun 1, 11:35 UTC2h 50m
2026-05-31 CXA8307 XMN → SYX May 31, 08:55 UTCMay 31, 13:10 UTC4h 15m
2026-05-30 CXA8359 XMN → NNG May 30, 10:00 UTCMay 30, 11:00 UTC1h 0m
2026-05-29 CXA864 SIN → HGH May 29, 13:20 UTCMay 29, 15:55 UTC2h 35m
2026-05-28 CXA8674 CGK → CKG May 28, 16:35 UTCMay 29, 11:35 UTC19h 0m
2026-05-27 CXA8694 CGK → NKG May 27, 23:55 UTCMay 28, 12:35 UTC12h 40m
2026-05-27 CXA8673 CKG → CGK May 27, 17:45 UTCMay 27, 21:00 UTC3h 15m
2026-05-25 CXA8674 CGK → CKG May 25, 16:40 UTCMay 25, 18:10 UTC1h 30m
2026-05-25 CXA8684 CGK → WUH May 25, 04:05 UTCMay 25, 09:55 UTC5h 50m
2026-05-24 CXA8673 CKG → CGK May 24, 21:10 UTCMay 24, 21:20 UTC10m
2026-05-24 CXA8673 CKG → CGK May 24, 19:45 UTCMay 24, 20:35 UTC50m
2026-05-20 CXA8674 CGK → CKG May 20, 16:35 UTCMay 20, 18:15 UTC1h 40m
2026-05-20 CXA8684 CGK → WUH May 20, 00:10 UTCMay 20, 10:10 UTC10h 1m
2026-05-19 CXA8673 CKG → CGK May 19, 20:10 UTCMay 19, 20:55 UTC45m
2026-05-16 CXA8359 XMN → NNG May 16, 10:05 UTCMay 16, 10:25 UTC20m
2026-05-16 CXA8370 ZUH → HGH May 16, 02:45 UTCMay 16, 02:55 UTC10m
2026-05-16 CXA8369 HGH → ZUH May 16, 00:45 UTCMay 16, 01:05 UTC20m
2026-05-13 CXA8070 CGQ → HGH May 13, 11:35 UTCMay 13, 12:20 UTC45m
2026-05-09 CXA8230 TSN → HGH May 9, 12:35 UTCMay 9, 12:55 UTC20m
2026-05-09 CXA8229 TSN → URC May 9, 03:55 UTCMay 9, 04:10 UTC15m
2026-05-08 CXA8230 TSN → HGH May 8, 12:04 UTCMay 8, 12:25 UTC20m
2026-05-08 CXA8229 TSN → URC May 8, 03:49 UTCMay 8, 04:04 UTC15m
2026-05-04 CXA8359 XMN → NNG May 4, 10:15 UTCMay 4, 10:40 UTC25m
2026-05-02 CXA8674 CGK → CKG May 2, 17:40 UTCMay 2, 18:10 UTC30m
2026-05-02 CXA8674 CGK → CKG May 2, 16:40 UTCMay 2, 16:50 UTC10m
2026-05-01 CXA8694 CGK → NKG May 1, 23:50 UTCMay 2, 12:50 UTC13h 1m
2026-05-01 CXA8673 CKG → CGK May 1, 21:25 UTCMay 1, 21:35 UTC10m
2026-05-01 CXA8673 CKG → CGK May 1, 20:00 UTCMay 1, 20:50 UTC50m
2026-04-28 CXA8688 KUL → CKG Apr 28, 06:05 UTCApr 28, 06:25 UTC20m
2026-04-28 CXA8687 CKG → KUL Apr 28, 04:25 UTCApr 28, 04:45 UTC20m
2026-04-27 CXA8674 CGK → CKG Apr 27, 17:30 UTCApr 27, 18:00 UTC30m
2026-04-27 CXA8674 CGK → CKG Apr 27, 16:30 UTCApr 27, 16:40 UTC10m
2026-04-27 CXA8683 WUH → CGK Apr 27, 14:10 UTCApr 27, 14:25 UTC15m
2026-04-27 CXA8684 CGK → WUH Apr 27, 01:00 UTCApr 27, 10:15 UTC9h 15m
2026-04-26 CXA8684 CGK → WUH Apr 26, 23:55 UTCApr 27, 00:10 UTC15m
2026-04-26 CXA8673 CKG → CGK Apr 26, 21:15 UTCApr 26, 21:30 UTC15m
2026-04-26 CXA8673 CKG → CGK Apr 26, 19:50 UTCApr 26, 20:20 UTC30m
2026-04-25 CXA8048 - Apr 25, 13:55 UTCApr 25, 16:35 UTC2h 40m
2026-04-24 CXA8674 CGK → CKG Apr 24, 17:35 UTCApr 24, 18:00 UTC25m
2026-04-24 CXA8674 CGK → CKG Apr 24, 16:30 UTCApr 24, 16:40 UTC10m
2026-04-24 CXA8683 WUH → CGK Apr 24, 14:25 UTCApr 24, 14:35 UTC10m
2026-04-24 CXA8684 CGK → WUH Apr 24, 01:00 UTCApr 24, 12:15 UTC11h 15m
2026-04-24 CXA8684 CGK → WUH Apr 24, 00:00 UTCApr 24, 00:10 UTC10m
2026-04-23 CXA8673 CKG → CGK Apr 23, 21:15 UTCApr 23, 21:25 UTC10m
2026-04-23 CXA8673 CKG → CGK Apr 23, 19:50 UTCApr 23, 20:20 UTC30m
2026-04-22 CXA8688 KUL → CKG Apr 22, 06:10 UTCApr 22, 06:20 UTC10m
2026-04-21 CXA8687 CKG → KUL Apr 21, 17:35 UTCApr 22, 04:30 UTC10h 55m
2026-04-21 CXA8694 CGK → NKG Apr 21, 00:05 UTCApr 21, 12:45 UTC12h 40m

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-20CQ page for operator, model, and routing details .

Mode-S 78174F frequently asked

What is Mode-S code 78174F?
78174F is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-20CQ.
Where is Mode-S 78174F registered?
Mode-S code 78174F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78174F broadcasting right now?
Yes. Mode-S 78174F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78174F, octal 36013517, decimal 7,870,287.
What flights does 78174F operate?
Mode-S 78174F has broadcast 20 distinct callsigns, including CXA8673, CXA8674, CXA8694, CXA8684, CXA8359.