Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7818F3

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30E2 · AIRBUS A-321neo

Hex
7818F3
Octal
36014363
Decimal
7,870,707
Country
CN
Tail
B-30E2
Type
A21N
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
378
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 7818F3.

Country allocation

The ICAO 24-bit address 7818F3 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
CSN8354 China Southern Airlines 46 2026-07-26
CSN8118 China Southern Airlines 37 2026-07-26
CSN8117 - 36 2026-07-17
CSN8353 China Southern Airlines 33 2026-07-26
CSN5031 - 21 2026-07-10
CSN5032 - 16 2026-07-10
CSN8047 China Southern Airlines 5 2026-07-25
CSN6592 China Southern Airlines 5 2026-05-25
CSN3613 - 5 2026-06-29
CSN8048 - 4 2026-07-16
CSN6386 - 4 2026-06-24
CSN5795 China Southern Airlines 4 2026-06-07
CSN3154 - 4 2026-07-05
CSN3089 China Southern Airlines 4 2026-07-24
CSN8504 - 3 2026-07-09
CSN8503 - 3 2026-07-08
CSN6591 China Southern Airlines 3 2026-05-25
CSN5102 - 3 2026-07-12
CSN3649 - 3 2026-07-02
CSN3634 - 3 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN8354 CGK → SZX Jul 26, 22:20 UTCJul 26, 22:30 UTC10m
2026-07-26 CSN8354 CGK → SZX Jul 26, 17:45 UTCJul 26, 19:10 UTC1h 25m
2026-07-26 CSN8353 SZX → CGK Jul 26, 16:05 UTCJul 26, 16:20 UTC15m
2026-07-26 CSN8118 SIN → SZX Jul 26, 05:50 UTCJul 26, 06:15 UTC25m
2026-07-25 CSN8047 SZX → SIN Jul 25, 10:45 UTCJul 25, 11:35 UTC50m
2026-07-25 CSN8047 SZX → SIN Jul 25, 07:55 UTCJul 25, 08:05 UTC10m
2026-07-25 CSN3569 SZX → HGH Jul 25, 00:30 UTCJul 25, 00:40 UTC10m
2026-07-24 CSN3670 NKG → SZX Jul 24, 16:45 UTCJul 24, 17:10 UTC25m
2026-07-24 CSN3669 SZX → NKG Jul 24, 11:05 UTCJul 24, 11:15 UTC10m
2026-07-24 CSN3090 ICN → SZX Jul 24, 09:05 UTCJul 24, 09:15 UTC10m
2026-07-24 CSN3090 ICN → SZX Jul 24, 06:10 UTCJul 24, 06:50 UTC40m
2026-07-24 CSN3089 SZX → ICN Jul 24, 03:55 UTCJul 24, 04:40 UTC45m
2026-07-24 CSN3089 SZX → ICN Jul 24, 01:35 UTCJul 24, 01:45 UTC10m
2026-07-23 CSN3236 CAN → KWL Jul 23, 17:10 UTCJul 23, 17:40 UTC30m
2026-07-23 CSN3235 KWL → CAN Jul 23, 12:20 UTCJul 23, 13:15 UTC55m
2026-07-23 CSN3552 SHA → SZX Jul 23, 09:40 UTCJul 23, 10:00 UTC20m
2026-07-23 CSN3551 SZX → SHA Jul 23, 04:10 UTCJul 23, 04:20 UTC10m
2026-07-22 CSN3641 SZX → CKG Jul 22, 13:20 UTCJul 22, 13:35 UTC15m
2026-07-22 CSN8797 SZX → TNA Jul 22, 00:25 UTCJul 22, 00:35 UTC10m
2026-07-21 CSN8354 - Jul 21, 22:00 UTCJul 21, 22:15 UTC15m
2026-07-21 CSN8354 - Jul 21, 17:35 UTCJul 21, 19:00 UTC1h 25m
2026-07-21 CSN8353 - Jul 21, 15:55 UTCJul 21, 16:10 UTC15m
2026-07-21 CSN3090 ICN → SZX Jul 21, 06:40 UTCJul 21, 07:20 UTC40m
2026-07-21 CSN3089 SZX → ICN Jul 21, 04:35 UTCJul 21, 05:15 UTC40m
2026-07-21 CSN3089 SZX → ICN Jul 21, 02:10 UTCJul 21, 02:20 UTC10m
2026-07-20 CSN3172 - Jul 20, 12:00 UTCJul 20, 12:10 UTC10m
2026-07-20 CSN3169 - Jul 20, 03:40 UTCJul 20, 04:00 UTC20m
2026-07-19 CSN8737 SZX → NGB Jul 19, 14:35 UTCJul 19, 14:45 UTC10m
2026-07-19 CSN8737 SZX → NGB Jul 19, 13:25 UTCJul 19, 13:35 UTC10m
2026-07-19 CSN6482 HRB → SZX Jul 19, 11:20 UTCJul 19, 11:35 UTC15m
2026-07-19 CSN6481 SZX → HRB Jul 19, 04:20 UTCJul 19, 08:55 UTC4h 35m
2026-07-19 CSN6481 SZX → HRB Jul 19, 01:55 UTCJul 19, 02:05 UTC10m
2026-07-18 CSN3588 - Jul 18, 16:40 UTCJul 18, 17:25 UTC45m
2026-07-18 CSN3587 SZX → SHA Jul 18, 09:30 UTCJul 18, 09:40 UTC10m
2026-07-18 CSN6752 - Jul 18, 07:20 UTCJul 18, 08:05 UTC45m
2026-07-18 CSN6751 - Jul 18, 02:09 UTCJul 18, 02:19 UTC10m
2026-07-17 CSN8354 - Jul 17, 22:20 UTCJul 17, 22:40 UTC20m
2026-07-17 CSN8354 - Jul 17, 17:50 UTCJul 17, 19:20 UTC1h 30m
2026-07-17 CSN8353 - Jul 17, 16:10 UTCJul 17, 16:19 UTC10m
2026-07-17 CSN8118 - Jul 17, 10:05 UTCJul 17, 10:20 UTC15m
2026-07-17 CSN8118 - Jul 17, 06:40 UTCJul 17, 07:05 UTC25m
2026-07-17 CSN8117 - Jul 17, 04:35 UTCJul 17, 04:54 UTC20m
2026-07-17 CSN8117 - Jul 17, 01:35 UTCJul 17, 01:45 UTC10m
2026-07-16 CSN8048 - Jul 16, 19:14 UTCJul 16, 19:30 UTC15m
2026-07-16 CSN8048 - Jul 16, 15:49 UTCJul 16, 16:15 UTC25m
2026-07-16 CSN8047 - Jul 16, 14:00 UTCJul 16, 14:20 UTC20m
2026-07-16 CSN8047 - Jul 16, 10:50 UTCJul 16, 11:05 UTC15m
2026-07-16 CSN3565 - Jul 16, 03:00 UTCJul 16, 03:10 UTC10m
2026-07-15 CSN8354 - Jul 15, 23:40 UTCJul 15, 23:55 UTC15m
2026-07-15 CSN8354 - Jul 15, 19:05 UTCJul 15, 20:40 UTC1h 35m

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-30E2 page for operator, model, and routing details .

Mode-S 7818F3 frequently asked

What is Mode-S code 7818F3?
7818F3 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30E2.
Where is Mode-S 7818F3 registered?
Mode-S code 7818F3 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7818F3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7818F3, octal 36014363, decimal 7,870,707.
What flights does 7818F3 operate?
Mode-S 7818F3 has broadcast 20 distinct callsigns, including CSN8354, CSN8118, CSN8117, CSN8353, CSN5031.