Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

78238F

ICAO 24-bit transponder address · allocated to China

Hex
78238F
Octal
36021617
Decimal
7,873,423
Country
CN
No current signal · last broadcast 6h ago
Flights observed
96
Distinct callsigns
20
Country
CN
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 78238F.

Country allocation

The ICAO 24-bit address 78238F 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
CSZ9321 - 8 2026-06-29
CSZ9729 - 6 2026-07-01
CSZ9329 - 4 2026-07-04
CSZ9621 Shenzhen Airlines 3 2026-06-03
CSZ9526 Shenzhen Airlines 3 2026-06-06
CSZ9409 - 3 2026-06-23
CSZ9315 - 3 2026-07-04
CSZ9850 Shenzhen Airlines 2 2026-06-09
CSZ9844 Shenzhen Airlines 2 2026-06-09
CSZ9843 Shenzhen Airlines 2 2026-06-09
CSZ9525 Shenzhen Airlines 2 2026-06-06
CSZ9522 Shenzhen Airlines 2 2026-06-13
CSZ9461 Shenzhen Airlines 2 2026-05-27
CSZ9403 Shenzhen Airlines 2 2026-06-08
CSZ9330 - 2 2026-07-04
CSZ9325 - 2 2026-07-04
CSZ8952 - 2 2026-06-01
CSZ8951 - 2 2026-06-01
CSZ9943 Shenzhen Airlines 1 2026-06-06
CSZ9942 Shenzhen Airlines 1 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-04 CSZ9315 - Jul 4, 15:25 UTCJul 4, 15:45 UTC20m
2026-07-04 CSZ9326 - Jul 4, 13:50 UTCJul 4, 14:00 UTC10m
2026-07-04 CSZ9325 - Jul 4, 10:00 UTCJul 4, 10:25 UTC25m
2026-07-04 CSZ9330 - Jul 4, 08:10 UTCJul 4, 08:25 UTC15m
2026-07-04 CSZ9329 - Jul 4, 00:55 UTCJul 4, 01:05 UTC10m
2026-07-03 CSZ9246 - Jul 3, 13:00 UTCJul 3, 13:10 UTC10m
2026-07-03 CSZ9245 - Jul 3, 00:55 UTCJul 3, 01:05 UTC10m
2026-07-02 CSZ9808 - Jul 2, 18:20 UTCJul 2, 18:30 UTC10m
2026-07-02 CSZ9805 - Jul 2, 04:00 UTCJul 2, 04:15 UTC15m
2026-07-01 CSZ9729 - Jul 1, 12:25 UTCJul 1, 12:45 UTC20m
2026-06-29 CSZ9321 - Jun 29, 23:39 UTCJun 30, 03:45 UTC4h 6m
2026-06-29 CSZ9322 - Jun 29, 15:19 UTCJun 29, 15:30 UTC10m
2026-06-29 CSZ9729 - Jun 29, 12:00 UTCJun 29, 12:09 UTC10m
2026-06-27 CSZ9321 - Jun 27, 23:55 UTCJun 28, 00:09 UTC15m
2026-06-27 - - Jun 27, 17:29 UTCJun 27, 17:39 UTC10m
2026-06-25 CSZ9321 - Jun 25, 23:30 UTCJun 26, 03:20 UTC3h 50m
2026-06-25 CSZ9729 - Jun 25, 11:59 UTCJun 25, 12:19 UTC20m
2026-06-23 CSZ9321 - Jun 23, 23:50 UTCJun 24, 03:40 UTC3h 50m
2026-06-23 CSZ9409 - Jun 23, 08:45 UTCJun 23, 08:59 UTC15m
2026-06-22 CSZ9235 - Jun 22, 23:20 UTCJun 22, 23:35 UTC15m
2026-06-22 CSZ9312 - Jun 22, 16:54 UTCJun 22, 17:04 UTC10m
2026-06-22 CSZ9749 - Jun 22, 00:14 UTCJun 22, 14:19 UTC14h 5m
2026-06-21 CSZ9315 - Jun 21, 15:09 UTCJun 21, 15:30 UTC20m
2026-06-21 CSZ8271 - Jun 21, 00:14 UTCJun 21, 00:25 UTC10m
2026-06-20 CSZ9729 - Jun 20, 11:34 UTCJun 20, 12:14 UTC40m
2026-06-19 CSZ9321 - Jun 19, 00:55 UTCJun 19, 01:10 UTC15m
2026-06-18 CSZ8918 - Jun 18, 16:25 UTCJun 18, 17:45 UTC1h 20m
2026-06-18 CSZ8917 - Jun 18, 09:15 UTCJun 18, 09:25 UTC10m
2026-06-17 CSZ9211 SZX → XIY Jun 17, 23:15 UTCJun 17, 23:25 UTC10m
2026-06-17 CSZ9729 - Jun 17, 11:35 UTCJun 17, 11:45 UTC10m
2026-06-15 - - Jun 15, 11:34 UTCJun 16, 03:25 UTC15h 50m
2026-06-13 CSZ9321 - Jun 13, 23:40 UTCJun 14, 03:15 UTC3h 35m
2026-06-13 CSZ9522 PVG → SZX Jun 13, 13:40 UTCJun 13, 13:50 UTC10m
2026-06-13 CSZ9522 PVG → SZX Jun 13, 12:25 UTCJun 13, 13:00 UTC35m
2026-06-13 CSZ9521 - Jun 13, 08:40 UTCJun 13, 08:50 UTC10m
2026-06-13 CSZ9330 SZX → CGO Jun 13, 05:45 UTCJun 13, 06:35 UTC50m
2026-06-13 CSZ9329 - Jun 13, 01:15 UTCJun 13, 01:35 UTC20m
2026-06-12 CSZ9306 CGO → SZX Jun 12, 17:15 UTCJun 12, 17:30 UTC15m
2026-06-12 CSZ9305 SZX → CGO Jun 12, 11:50 UTCJun 12, 12:00 UTC10m
2026-06-12 CSZ9632 YTY → SZX Jun 12, 08:50 UTCJun 12, 09:05 UTC15m
2026-06-11 CSZ9635 SZX → CGQ Jun 11, 12:55 UTCJun 11, 13:05 UTC10m
2026-06-11 CSZ9616 - Jun 11, 11:30 UTCJun 11, 11:45 UTC15m
2026-06-11 CSZ9615 - Jun 11, 04:25 UTCJun 11, 04:35 UTC10m
2026-06-10 CSZ9409 SZX → CTU Jun 10, 08:55 UTCJun 10, 09:05 UTC10m
2026-06-09 CSZ9850 NKG → SZX Jun 9, 13:00 UTCJun 9, 13:40 UTC40m
2026-06-09 CSZ9844 NKG → SZX Jun 9, 06:35 UTCJun 9, 06:55 UTC20m
2026-06-09 CSZ9843 SZX → URC Jun 9, 01:25 UTCJun 9, 01:35 UTC10m
2026-06-08 CSZ9403 SZX → CTU Jun 8, 00:35 UTCJun 8, 00:50 UTC15m
2026-06-07 CSZ9848 NKG → SZX Jun 7, 14:15 UTCJun 7, 14:40 UTC25m
2026-06-07 CSZ9847 SZX → NKG Jun 7, 08:40 UTCJun 7, 08:55 UTC15m

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.

Mode-S 78238F frequently asked

What is Mode-S code 78238F?
78238F is an ICAO 24-bit transponder address. Allocated to China.
Where is Mode-S 78238F registered?
Mode-S code 78238F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78238F broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78238F, octal 36021617, decimal 7,873,423.
What flights does 78238F operate?
Mode-S 78238F has broadcast 20 distinct callsigns, including CSZ9321, CSZ9729, CSZ9329, CSZ9621, CSZ9526.