Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

78242E

ICAO 24-bit transponder address · allocated to China

Hex
78242E
Octal
36022056
Decimal
7,873,582
Country
CN
No current signal · last broadcast 17d ago
Flights observed
91
Distinct callsigns
20
Country
CN
Last broadcast
17d ago

Last known position

Most recent position reported by Mode-S 78242E.

Country allocation

The ICAO 24-bit address 78242E 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
CHH430 Hainan Airlines 7 2026-07-25
CHH429 Hainan Airlines 6 2026-07-25
BOE123 - 5 2026-05-14
CHH2282 - 4 2026-06-16
CHH7367 Hainan Airlines 3 2026-07-25
CHH7044 - 3 2026-07-20
BOE191 - 3 2026-06-08
CHH7996 - 2 2026-07-07
CHH7809 - 2 2026-07-16
CHH7772 - 2 2026-07-12
CHH7771 - 2 2026-07-12
CHH7767 - 2 2026-07-14
CHH7715 - 2 2026-07-08
CHH7705 - 2 2026-07-04
CHH7398 - 2 2026-07-13
CHH7198 Hainan Airlines 2 2026-07-24
CHH7197 Hainan Airlines 2 2026-07-23
CHH7185 Hainan Airlines 2 2026-07-22
CHH7180 - 2 2026-07-08
CHH7156 - 2 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CHH7443 - Jul 26, 04:20 UTCJul 26, 04:30 UTC10m
2026-07-25 CHH7367 PEK → CKG Jul 25, 13:30 UTCJul 25, 13:50 UTC20m
2026-07-25 CHH430 BKK → PEK Jul 25, 07:05 UTCJul 25, 08:50 UTC1h 45m
2026-07-25 CHH429 PEK → BKK Jul 25, 00:30 UTCJul 25, 04:55 UTC4h 25m
2026-07-24 CHH7448 - Jul 24, 06:55 UTCJul 24, 14:05 UTC7h 10m
2026-07-24 CHH7198 LHW → PEK Jul 24, 04:30 UTCJul 24, 04:50 UTC20m
2026-07-23 CHH7197 PEK → LHW Jul 23, 23:10 UTCJul 23, 23:30 UTC20m
2026-07-23 CHH7777 PEK → BAR Jul 23, 06:25 UTCJul 23, 06:45 UTC20m
2026-07-22 CHH7185 PEK → YIH Jul 22, 23:10 UTCJul 22, 23:30 UTC20m
2026-07-22 CHH7138 XIY → PEK Jul 22, 03:40 UTCJul 22, 04:20 UTC40m
2026-07-21 CHH7137 PEK → XIY Jul 21, 23:20 UTCJul 21, 23:35 UTC15m
2026-07-21 CHH7144 KHN → PEK Jul 21, 12:15 UTCJul 21, 12:25 UTC10m
2026-07-21 CHH7143 PEK → KHN Jul 21, 07:05 UTCJul 21, 07:15 UTC10m
2026-07-20 CHH7613 PEK → PVG Jul 20, 23:45 UTCJul 20, 23:55 UTC10m
2026-07-20 CHH7044 - Jul 20, 02:10 UTCJul 20, 08:05 UTC5h 55m
2026-07-19 CHH7044 - Jul 19, 11:35 UTCJul 20, 08:05 UTC20h 30m
2026-07-19 CHH7238 XIY → PEK Jul 19, 08:35 UTCJul 19, 09:00 UTC25m
2026-07-19 CHH7237 PEK → XIY Jul 19, 03:40 UTCJul 19, 03:50 UTC10m
2026-07-18 CHH7367 - Jul 18, 13:30 UTCJul 18, 13:50 UTC20m
2026-07-18 CHH430 BKK → PEK Jul 18, 11:20 UTCJul 18, 11:35 UTC15m
2026-07-18 CHH430 BKK → PEK Jul 18, 08:15 UTCJul 18, 08:35 UTC20m
2026-07-18 CHH430 BKK → PEK Jul 18, 07:00 UTCJul 18, 07:15 UTC15m
2026-07-18 CHH429 PEK → BKK Jul 18, 04:30 UTCJul 18, 04:50 UTC20m
2026-07-18 CHH429 PEK → BKK Jul 18, 00:29 UTCJul 18, 03:30 UTC3h 1m
2026-07-17 CHH7347 - Jul 17, 07:00 UTCJul 17, 07:14 UTC15m
2026-07-17 CHH7198 - Jul 17, 03:45 UTCJul 17, 04:04 UTC20m
2026-07-16 CHH7197 - Jul 16, 23:20 UTCJul 16, 23:40 UTC20m
2026-07-16 CHH7809 - Jul 16, 06:45 UTCJul 16, 07:00 UTC15m
2026-07-14 CHH7767 - Jul 14, 23:40 UTCJul 14, 23:50 UTC10m
2026-07-14 CHH7392 - Jul 14, 14:15 UTCJul 14, 14:35 UTC20m
2026-07-14 CHH7391 - Jul 14, 09:15 UTCJul 14, 09:25 UTC10m
2026-07-14 CHH7768 - Jul 14, 06:00 UTCJul 14, 06:10 UTC10m
2026-07-14 CHH7767 - Jul 14, 00:15 UTCJul 14, 00:35 UTC20m
2026-07-13 CHH6206 - Jul 13, 14:35 UTCJul 13, 15:15 UTC40m
2026-07-13 CHH7156 - Jul 13, 07:15 UTCJul 13, 07:55 UTC40m
2026-07-13 CHH7155 - Jul 13, 02:10 UTCJul 13, 02:20 UTC10m
2026-07-13 CHH7398 - Jul 13, 00:01 UTCJul 13, 00:40 UTC40m
2026-07-12 CHH7397 - Jul 12, 14:35 UTCJul 12, 14:45 UTC10m
2026-07-12 CHH7772 - Jul 12, 11:35 UTCJul 12, 11:55 UTC20m
2026-07-12 CHH7771 - Jul 12, 07:31 UTCJul 12, 08:40 UTC1h 10m
2026-07-12 CHH7736 - Jul 12, 04:10 UTCJul 12, 04:20 UTC10m
2026-07-11 CHH7735 - Jul 11, 22:30 UTCJul 11, 22:45 UTC15m
2026-07-11 CHH7256 - Jul 11, 15:20 UTCJul 11, 15:30 UTC10m
2026-07-11 CHH7255 - Jul 11, 10:10 UTCJul 11, 10:20 UTC10m
2026-07-10 CHH7748 - Jul 10, 17:15 UTCJul 10, 17:35 UTC20m
2026-07-10 CHH7747 - Jul 10, 09:30 UTCJul 10, 09:40 UTC10m
2026-07-10 CHH7156 - Jul 10, 07:40 UTCJul 10, 08:00 UTC20m
2026-07-10 CHH7155 - Jul 10, 02:20 UTCJul 10, 02:35 UTC15m
2026-07-10 CHH7398 - Jul 10, 00:30 UTCJul 10, 00:40 UTC10m
2026-07-09 CHH7772 - Jul 9, 14:45 UTCJul 9, 14:55 UTC10m

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 78242E frequently asked

What is Mode-S code 78242E?
78242E is an ICAO 24-bit transponder address. Allocated to China.
Where is Mode-S 78242E registered?
Mode-S code 78242E is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78242E broadcasting right now?
No active broadcast right now. Last signal was 17d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78242E, octal 36022056, decimal 7,873,582.
What flights does 78242E operate?
Mode-S 78242E has broadcast 20 distinct callsigns, including CHH430, CHH429, BOE123, CHH2282, CHH7367.