Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

78179B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-20CX · BOEING 757-200

Hex
78179B
Octal
36013633
Decimal
7,870,363
Country
CN
Tail
B-20CX
Type
B752
No current signal · last broadcast 8h ago
Flights observed
75
Distinct callsigns
13
Country
CN
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 78179B.

Country allocation

The ICAO 24-bit address 78179B 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 13 distinct

Callsign Airline Flights Last seen
YZR7912 Yangtze River Express 30 2026-05-29
YZR7911 Yangtze River Express 22 2026-05-29
CSS7110 SF Airlines 4 2026-04-16
CSS7109 - 4 2026-04-16
CSS326 SF Airlines 4 2026-04-22
CSS6814 SF Airlines 2 2026-04-20
CSS325 SF Airlines 2 2026-04-22
CSS317 SF Airlines 2 2026-04-22
CSS6864 SF Airlines 1 2026-04-25
CSS6846 SF Airlines 1 2026-04-24
CSS6828 SF Airlines 1 2026-04-24
CSS6805 SF Airlines 1 2026-04-25
CSS318 - 1 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 YZR7912 TPE → CAN May 29, 20:45 UTCMay 29, 22:05 UTC1h 20m
2026-05-29 YZR7911 CAN → TPE May 29, 18:15 UTCMay 29, 19:45 UTC1h 30m
2026-05-28 YZR7912 TPE → CAN May 28, 20:15 UTCMay 28, 21:35 UTC1h 20m
2026-05-28 YZR7911 CAN → TPE May 28, 17:45 UTCMay 28, 19:15 UTC1h 30m
2026-05-27 YZR7912 TPE → CAN May 27, 20:40 UTCMay 27, 21:55 UTC1h 15m
2026-05-27 YZR7911 CAN → TPE May 27, 17:55 UTCMay 27, 19:25 UTC1h 30m
2026-05-26 YZR7912 TPE → CAN May 26, 21:25 UTCMay 26, 21:34 UTC10m
2026-05-26 YZR7912 TPE → CAN May 26, 20:29 UTCMay 26, 20:54 UTC25m
2026-05-26 YZR7911 CAN → TPE May 26, 17:50 UTCMay 26, 19:20 UTC1h 30m
2026-05-25 YZR7912 TPE → CAN May 25, 21:09 UTCMay 25, 22:15 UTC1h 5m
2026-05-25 YZR7911 CAN → TPE May 25, 18:10 UTCMay 25, 19:40 UTC1h 29m
2026-05-22 YZR7912 TPE → CAN May 22, 21:25 UTCMay 22, 21:45 UTC20m
2026-05-22 YZR7912 TPE → CAN May 22, 20:25 UTCMay 22, 20:55 UTC30m
2026-05-22 YZR7911 CAN → TPE May 22, 17:50 UTCMay 22, 19:25 UTC1h 35m
2026-05-21 YZR7912 TPE → CAN May 21, 20:20 UTCMay 21, 21:30 UTC1h 10m
2026-05-21 YZR7911 CAN → TPE May 21, 18:00 UTCMay 21, 19:30 UTC1h 30m
2026-05-20 YZR7912 TPE → CAN May 20, 20:35 UTCMay 20, 21:05 UTC30m
2026-05-20 YZR7911 CAN → TPE May 20, 18:00 UTCMay 20, 19:30 UTC1h 30m
2026-05-19 YZR7912 TPE → CAN May 19, 20:10 UTCMay 19, 21:35 UTC1h 25m
2026-05-19 YZR7911 CAN → TPE May 19, 17:50 UTCMay 19, 19:20 UTC1h 30m
2026-05-18 YZR7912 TPE → CAN May 18, 20:10 UTCMay 18, 21:30 UTC1h 20m
2026-05-18 YZR7911 CAN → TPE May 18, 17:50 UTCMay 18, 19:15 UTC1h 24m
2026-05-15 YZR7912 TPE → CAN May 15, 21:45 UTCMay 15, 22:55 UTC1h 10m
2026-05-15 YZR7911 CAN → TPE May 15, 18:15 UTCMay 15, 19:35 UTC1h 20m
2026-05-14 YZR7912 TPE → CAN May 14, 20:35 UTCMay 14, 21:35 UTC1h 0m
2026-05-14 YZR7911 CAN → TPE May 14, 18:05 UTCMay 14, 19:30 UTC1h 25m
2026-05-13 YZR7912 TPE → CAN May 13, 22:05 UTCMay 13, 22:25 UTC20m
2026-05-13 YZR7912 TPE → CAN May 13, 20:55 UTCMay 13, 21:30 UTC35m
2026-05-13 YZR7911 CAN → TPE May 13, 18:05 UTCMay 13, 19:25 UTC1h 20m
2026-05-12 YZR7912 TPE → CAN May 12, 21:55 UTCMay 12, 22:10 UTC15m
2026-05-12 YZR7912 TPE → CAN May 12, 20:55 UTCMay 12, 21:20 UTC25m
2026-05-12 YZR7911 CAN → TPE May 12, 18:10 UTCMay 12, 19:40 UTC1h 30m
2026-05-11 YZR7912 TPE → CAN May 11, 21:20 UTCMay 11, 21:30 UTC10m
2026-05-11 YZR7912 TPE → CAN May 11, 20:15 UTCMay 11, 20:45 UTC30m
2026-05-11 YZR7911 CAN → TPE May 11, 18:00 UTCMay 11, 19:20 UTC1h 20m
2026-05-08 YZR7912 TPE → CAN May 8, 21:30 UTCMay 8, 21:50 UTC20m
2026-05-08 YZR7912 TPE → CAN May 8, 20:25 UTCMay 8, 20:55 UTC30m
2026-05-08 YZR7911 CAN → TPE May 8, 18:00 UTCMay 8, 19:20 UTC1h 20m
2026-05-07 YZR7912 TPE → CAN May 7, 21:30 UTCMay 7, 21:50 UTC20m
2026-05-07 YZR7912 TPE → CAN May 7, 20:25 UTCMay 7, 20:55 UTC30m
2026-05-07 YZR7911 CAN → TPE May 7, 18:10 UTCMay 7, 19:30 UTC1h 20m
2026-05-06 YZR7912 TPE → CAN May 6, 20:40 UTCMay 6, 22:05 UTC1h 25m
2026-05-06 YZR7911 CAN → TPE May 6, 18:05 UTCMay 6, 19:25 UTC1h 20m
2026-04-30 YZR7912 TPE → CAN Apr 30, 21:25 UTCApr 30, 21:45 UTC20m
2026-04-30 YZR7912 TPE → CAN Apr 30, 20:25 UTCApr 30, 20:50 UTC25m
2026-04-30 YZR7911 CAN → TPE Apr 30, 18:05 UTCApr 30, 19:20 UTC1h 15m
2026-04-29 YZR7912 TPE → CAN Apr 29, 20:45 UTCApr 29, 21:10 UTC25m
2026-04-29 YZR7911 CAN → TPE Apr 29, 18:10 UTCApr 29, 19:30 UTC1h 20m
2026-04-28 YZR7912 TPE → CAN Apr 28, 22:49 UTCApr 29, 00:15 UTC1h 25m
2026-04-28 YZR7911 CAN → TPE Apr 28, 20:05 UTCApr 28, 21:40 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-20CX page for operator, model, and routing details .

Mode-S 78179B frequently asked

What is Mode-S code 78179B?
78179B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-20CX.
Where is Mode-S 78179B registered?
Mode-S code 78179B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78179B broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78179B, octal 36013633, decimal 7,870,363.
What flights does 78179B operate?
Mode-S 78179B has broadcast 13 distinct callsigns, including YZR7912, YZR7911, CSS7110, CSS7109, CSS326.