Apparatus

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sensors Mode-S transponder

78198F

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30FX · AIRBUS A-320neo

Hex
78198F
Octal
36014617
Decimal
7,870,863
Country
CN
Tail
B-30FX
Type
A20N
No current signal · last broadcast 1h ago
Flights observed
130
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 78198F.

Country allocation

The ICAO 24-bit address 78198F 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
CSN6074 - 14 2026-07-07
CSN6073 - 13 2026-07-08
CSN638 - 12 2026-07-09
CSN687 - 11 2026-07-17
CSN688 - 8 2026-07-18
CSN637 - 7 2026-07-09
CSN8459 - 6 2026-07-05
CSN6342 - 5 2026-06-29
CSN8141 China Southern Airlines 4 2026-07-17
CSN6168 - 4 2026-06-28
CSN8460 - 3 2026-07-09
CSN8142 China Southern Airlines 3 2026-07-17
CSN6553 China Southern Airlines 3 2026-05-19
CSN6146 China Southern Airlines 3 2026-06-11
CSN6545 - 2 2026-06-18
CSN6460 China Southern Airlines 2 2026-04-23
CSN6405 China Southern Airlines 2 2026-04-25
CSN6377 China Southern Airlines 2 2026-05-06
CSN6358 - 2 2026-07-13
CSN6357 - 2 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CSN688 - Jul 18, 05:55 UTCJul 18, 06:30 UTC35m
2026-07-17 CSN8142 ICN → YNJ Jul 17, 12:19 UTCJul 18, 03:55 UTC15h 36m
2026-07-17 CSN8141 YNJ → ICN Jul 17, 04:59 UTCJul 17, 11:00 UTC6h 0m
2026-07-17 CSN687 - Jul 17, 01:49 UTCJul 17, 02:45 UTC55m
2026-07-13 CSN6358 - Jul 13, 08:55 UTCJul 13, 09:10 UTC15m
2026-07-13 CSN6358 - Jul 13, 06:35 UTCJul 13, 06:45 UTC10m
2026-07-13 CSN6357 - Jul 13, 03:55 UTCJul 13, 04:15 UTC20m
2026-07-13 CSN6357 - Jul 13, 01:35 UTCJul 13, 01:45 UTC10m
2026-07-09 CSN638 - Jul 9, 10:35 UTCJul 9, 11:05 UTC30m
2026-07-09 CSN637 - Jul 9, 09:05 UTCJul 9, 09:25 UTC20m
2026-07-09 CSN8460 - Jul 9, 05:15 UTCJul 9, 05:35 UTC20m
2026-07-08 CSN688 - Jul 8, 05:50 UTCJul 8, 10:30 UTC4h 40m
2026-07-08 CSN6073 - Jul 8, 03:05 UTCJul 8, 04:05 UTC1h 0m
2026-07-07 CSN6074 - Jul 7, 04:45 UTCJul 8, 03:45 UTC23h 0m
2026-07-06 CSN638 - Jul 6, 10:40 UTCJul 7, 03:00 UTC16h 20m
2026-07-06 CSN637 - Jul 6, 08:45 UTCJul 6, 09:05 UTC20m
2026-07-06 CSN8460 - Jul 6, 04:45 UTCJul 6, 08:15 UTC3h 30m
2026-07-05 CSN8459 - Jul 5, 11:30 UTCJul 6, 08:15 UTC20h 45m
2026-07-05 CSN688 - Jul 5, 06:00 UTCJul 5, 06:25 UTC25m
2026-07-04 CSN6073 - Jul 4, 13:05 UTCJul 5, 04:05 UTC15h 0m
2026-07-04 CSN8142 - Jul 4, 12:15 UTCJul 4, 12:35 UTC20m
2026-07-04 CSN8141 - Jul 4, 10:25 UTCJul 4, 10:45 UTC20m
2026-07-04 CSN8141 - Jul 4, 09:45 UTCJul 4, 09:55 UTC10m
2026-07-04 CSN6074 - Jul 4, 04:35 UTCJul 4, 04:55 UTC20m
2026-07-04 CSN687 - Jul 4, 02:35 UTCJul 4, 02:50 UTC15m
2026-07-03 CSN638 - Jul 3, 10:15 UTCJul 3, 10:35 UTC20m
2026-07-02 CSN8460 - Jul 2, 10:00 UTCJul 3, 05:10 UTC19h 10m
2026-07-02 CSN6073 - Jul 2, 03:40 UTCJul 2, 04:00 UTC20m
2026-07-01 CSN8142 - Jul 1, 12:25 UTCJul 2, 03:05 UTC14h 40m
2026-07-01 CSN8141 ICN → ICN Jul 1, 05:00 UTCJul 1, 11:05 UTC6h 5m
2026-07-01 CSN687 - Jul 1, 02:20 UTCJul 1, 02:45 UTC25m
2026-06-30 CSN6378 - Jun 30, 03:30 UTCJun 30, 08:05 UTC4h 35m
2026-06-29 CSN6342 - Jun 29, 01:05 UTCJun 29, 12:20 UTC11h 15m
2026-06-28 CSN6168 - Jun 28, 12:35 UTCJun 28, 12:44 UTC10m
2026-06-28 CSN638 - Jun 28, 05:40 UTCJun 28, 06:00 UTC20m
2026-06-28 CSN6073 - Jun 28, 03:35 UTCJun 28, 03:59 UTC25m
2026-06-27 CSN6074 - Jun 27, 10:40 UTCJun 28, 03:05 UTC16h 25m
2026-06-27 CSN637 - Jun 27, 04:44 UTCJun 27, 09:00 UTC4h 15m
2026-06-27 CSN687 - Jun 27, 02:14 UTCJun 27, 02:39 UTC25m
2026-06-26 CSN6342 - Jun 26, 08:10 UTCJun 27, 01:39 UTC17h 30m
2026-06-24 CSN6487 - Jun 24, 09:59 UTCJun 24, 13:20 UTC3h 20m
2026-06-22 CSN5141 - Jun 22, 07:49 UTCJun 23, 03:20 UTC19h 30m
2026-06-21 CSN6364 - Jun 21, 08:04 UTCJun 22, 07:45 UTC23h 40m
2026-06-18 CSN6545 - Jun 18, 00:05 UTCJun 18, 09:30 UTC9h 25m
2026-06-14 CSN6074 ICN → YNJ Jun 14, 10:40 UTCJun 14, 11:05 UTC25m
2026-06-14 CSN688 ICN → CGQ Jun 14, 05:10 UTCJun 14, 09:30 UTC4h 20m
2026-06-14 CSN687 - Jun 14, 02:30 UTCJun 14, 02:50 UTC20m
2026-06-13 CSN638 ICN → CGQ Jun 13, 05:50 UTCJun 13, 06:05 UTC15m
2026-06-13 CSN6073 - Jun 13, 03:40 UTCJun 13, 04:05 UTC25m
2026-06-12 CSN3606 CAN → CGQ Jun 12, 11:00 UTCJun 13, 03:05 UTC16h 5m

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

Mode-S 78198F frequently asked

What is Mode-S code 78198F?
78198F is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30FX.
Where is Mode-S 78198F registered?
Mode-S code 78198F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78198F 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 78198F, octal 36014617, decimal 7,870,863.
What flights does 78198F operate?
Mode-S 78198F has broadcast 20 distinct callsigns, including CSN6074, CSN6073, CSN638, CSN687, CSN688.