Apparatus

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sensors Mode-S transponder

78158D

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-207T · BOEING 737 MAX 8

Hex
78158D
Octal
36012615
Decimal
7,869,837
Country
CN
Tail
B-207T
Type
B38M
No current signal · last broadcast 19h ago
Flights observed
64
Distinct callsigns
20
Country
CN
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 78158D.

Country allocation

The ICAO 24-bit address 78158D 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
CHH447 Hainan Airlines 8 2026-05-20
CHH7909 Hainan Airlines 5 2026-05-21
CHH473 Hainan Airlines 5 2026-05-27
CHH474 Hainan Airlines 4 2026-05-27
CHH450 Hainan Airlines 4 2026-05-18
CHH448 Hainan Airlines 4 2026-05-21
CHH747 Hainan Airlines 3 2026-05-20
CHH449 Hainan Airlines 3 2026-05-18
CHH7447 Hainan Airlines 2 2026-04-26
CHH7044 Hainan Airlines 2 2026-05-07
CHH429 Hainan Airlines 2 2026-04-15
CHH7996 Hainan Airlines 1 2026-05-27
CHH7995 Hainan Airlines 1 2026-05-27
CHH792 Hainan Airlines 1 2026-05-25
CHH7910 Hainan Airlines 1 2026-05-04
CHH791 Hainan Airlines 1 2026-05-24
CHH7777 Hainan Airlines 1 2026-05-09
CHH7688 Hainan Airlines 1 2026-04-29
CHH7687 Hainan Airlines 1 2026-05-23
CHH7482 Hainan Airlines 1 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CHH7435 HGH → HET May 29, 09:30 UTCMay 29, 09:45 UTC15m
2026-05-28 CHH7482 PEK → HAK May 28, 01:45 UTCMay 28, 02:05 UTC20m
2026-05-27 CHH7996 BKK → PEK May 27, 18:00 UTCMay 27, 19:40 UTC1h 40m
2026-05-27 CHH7995 PEK → BKK May 27, 11:20 UTCMay 27, 16:00 UTC4h 40m
2026-05-27 CHH474 KIX → PEK May 27, 05:29 UTCMay 27, 07:00 UTC1h 31m
2026-05-27 CHH473 PEK → KIX May 27, 01:54 UTCMay 27, 03:24 UTC1h 30m
2026-05-27 CHH473 PEK → KIX May 27, 00:55 UTCMay 27, 01:05 UTC10m
2026-05-25 CHH792 NRT → HAK May 25, 06:25 UTCMay 25, 10:20 UTC3h 55m
2026-05-24 CHH791 HAK → NRT May 24, 12:55 UTCMay 25, 04:20 UTC15h 25m
2026-05-23 CHH7687 NGB → TAO May 23, 23:45 UTCMay 24, 13:05 UTC13h 20m
2026-05-21 CHH448 HAK → TYN May 21, 20:50 UTCMay 21, 21:20 UTC30m
2026-05-21 CHH7909 HAK → SIN May 21, 18:15 UTCMay 21, 18:35 UTC20m
2026-05-20 CHH7909 HAK → SIN May 20, 20:50 UTCMay 21, 18:35 UTC21h 45m
2026-05-20 CHH447 HAK → SYD May 20, 04:25 UTCMay 20, 19:00 UTC14h 36m
2026-05-20 CHH747 HAK → SIN May 20, 02:15 UTCMay 20, 02:55 UTC40m
2026-05-19 CHH747 HAK → SIN May 19, 04:20 UTCMay 20, 02:55 UTC22h 35m
2026-05-18 CHH450 ICN → HAK May 18, 12:40 UTCMay 19, 01:50 UTC13h 9m
2026-05-18 CHH449 HAK → ICN May 18, 10:40 UTCMay 18, 11:00 UTC20m
2026-05-17 CHH702 CGK → HAK May 17, 12:05 UTCMay 17, 13:35 UTC1h 30m
2026-05-16 CHH450 ICN → HAK May 16, 12:40 UTCMay 16, 15:40 UTC3h 0m
2026-05-16 CHH449 HAK → ICN May 16, 11:05 UTCMay 16, 11:31 UTC25m
2026-05-11 CHH474 KIX → PEK May 11, 05:45 UTCMay 11, 07:10 UTC1h 25m
2026-05-11 CHH473 PEK → KIX May 11, 02:00 UTCMay 11, 03:25 UTC1h 25m
2026-05-09 CHH7777 PEK → BAR May 9, 06:15 UTCMay 9, 06:35 UTC20m
2026-05-09 CHH7138 XIY → PEK May 9, 04:10 UTCMay 9, 04:25 UTC15m
2026-05-08 CHH7137 PEK → XIY May 8, 23:10 UTCMay 8, 23:35 UTC25m
2026-05-08 CHH748 SIN → HAK May 8, 04:19 UTCMay 8, 04:39 UTC20m
2026-05-08 CHH747 HAK → SIN May 8, 01:59 UTCMay 8, 02:19 UTC20m
2026-05-07 CHH7044 TNA → HAK May 7, 02:10 UTCMay 7, 08:40 UTC6h 30m
2026-05-06 CHH448 HAK → TYN May 6, 05:25 UTCMay 7, 02:20 UTC20h 54m
2026-05-05 CHH448 HAK → TYN May 5, 20:55 UTCMay 6, 05:35 UTC8h 40m
2026-05-05 CHH7909 HAK → SIN May 5, 18:20 UTCMay 5, 18:35 UTC15m
2026-05-04 CHH7910 SIN → HAK May 4, 21:00 UTCMay 5, 18:35 UTC21h 35m
2026-05-04 CHH447 HAK → SYD May 4, 05:25 UTCMay 4, 18:35 UTC13h 11m
2026-05-03 CHH447 HAK → SYD May 3, 21:20 UTCMay 4, 18:35 UTC21h 16m
2026-05-03 CHH448 HAK → TYN May 3, 21:05 UTCMay 4, 18:35 UTC21h 31m
2026-05-03 CHH447 HAK → SYD May 3, 10:10 UTCMay 3, 18:50 UTC8h 40m
2026-05-02 CHH447 HAK → SYD May 2, 20:45 UTCMay 3, 18:50 UTC22h 4m
2026-05-02 CHH7909 HAK → SIN May 2, 18:30 UTCMay 2, 19:05 UTC35m
2026-05-01 CHH7909 HAK → SIN May 1, 20:50 UTCMay 2, 19:05 UTC22h 15m
2026-05-01 CHH447 HAK → SYD May 1, 06:10 UTCMay 1, 19:00 UTC12h 50m
2026-04-30 CHH447 HAK → SYD Apr 30, 15:30 UTCMay 1, 10:45 UTC19h 15m
2026-04-30 CHH447 HAK → SYD Apr 30, 12:30 UTCMay 1, 10:45 UTC22h 15m
2026-04-30 CHH7070 KHN → HAK Apr 30, 07:20 UTCMay 1, 06:25 UTC23h 5m
2026-04-30 CHH7073 HAK → HRB Apr 30, 03:00 UTCApr 30, 15:45 UTC12h 45m
2026-04-29 CHH7688 NGB → HAK Apr 29, 11:20 UTCApr 30, 07:25 UTC20h 4m
2026-04-27 CHH7282 PEK → HAK Apr 27, 13:15 UTCApr 27, 13:35 UTC20m
2026-04-27 CHH474 KIX → PEK Apr 27, 05:55 UTCApr 27, 07:25 UTC1h 30m
2026-04-27 CHH473 PEK → KIX Apr 27, 01:45 UTCApr 27, 02:55 UTC1h 10m
2026-04-26 CHH7447 PEK → TFU Apr 26, 08:15 UTCApr 26, 08:25 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.

Prefer a tail-number view? See the B-207T page for operator, model, and routing details .

Mode-S 78158D frequently asked

What is Mode-S code 78158D?
78158D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-207T.
Where is Mode-S 78158D registered?
Mode-S code 78158D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78158D broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78158D, octal 36012615, decimal 7,869,837.
What flights does 78158D operate?
Mode-S 78158D has broadcast 20 distinct callsigns, including CHH447, CHH7909, CHH473, CHH474, CHH450.