Apparatus

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sensors Mode-S transponder

78158C

ICAO 24-bit transponder address · allocated to China

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

Hex
78158C
Octal
36012614
Decimal
7,869,836
Country
CN
Tail
B-207S
Type
B38M
No current signal · last broadcast Jul 26, 00:50 UTC
Flights observed
245
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 00:50 UTC

Last known position

Most recent position reported by Mode-S 78158C.

Country allocation

The ICAO 24-bit address 78158C 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
CHH7923 Hainan Airlines 14 2026-07-22
CHH7769 - 12 2026-06-02
CHH473 - 12 2026-07-15
CHH7924 - 11 2026-07-18
CHH7630 Hainan Airlines 11 2026-06-02
CHH7770 - 10 2026-06-02
CHH430 - 10 2026-07-16
CHH7629 Hainan Airlines 9 2026-06-02
CHH474 - 8 2026-07-15
CHH429 - 8 2026-07-16
CHH7771 - 7 2026-07-21
CHH7734 Hainan Airlines 7 2026-05-31
CHH7772 - 6 2026-07-21
CHH7996 - 5 2026-07-15
CHH7995 - 5 2026-07-15
CHH7175 - 5 2026-07-23
CHH7322 - 4 2026-06-17
CHH423 - 4 2026-07-10
CHH7763 Hainan Airlines 3 2026-07-19
CHH7733 Hainan Airlines 3 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CHH7082 PEK → HAK Jul 25, 11:45 UTCJul 26, 00:50 UTC13h 5m
2026-07-25 CHH6386 NGB → HAK Jul 25, 09:05 UTCJul 25, 09:15 UTC10m
2026-07-25 CHH6385 PEK → KWE Jul 25, 02:45 UTCJul 25, 03:15 UTC30m
2026-07-25 CHH7368 CKG → PEK Jul 25, 00:40 UTCJul 25, 01:10 UTC30m
2026-07-24 CHH7557 SZX → CKG Jul 24, 15:25 UTCJul 24, 15:40 UTC15m
2026-07-24 CHH7396 - Jul 24, 13:35 UTCJul 24, 13:55 UTC20m
2026-07-24 CHH7395 SZX → HGH Jul 24, 08:50 UTCJul 24, 09:00 UTC10m
2026-07-24 CHH7767 SZX → KMG Jul 24, 01:45 UTCJul 24, 01:55 UTC10m
2026-07-23 CHH7392 HGH → SZX Jul 23, 14:50 UTCJul 23, 15:15 UTC25m
2026-07-23 CHH7391 SZX → HGH Jul 23, 09:15 UTCJul 23, 09:25 UTC10m
2026-07-23 CHH7175 - Jul 23, 00:05 UTCJul 23, 00:20 UTC15m
2026-07-22 CHH7923 CKG → KUL Jul 22, 03:55 UTCJul 22, 04:20 UTC25m
2026-07-22 CHH7923 CKG → KUL Jul 22, 01:15 UTCJul 22, 01:35 UTC20m
2026-07-21 CHH7557 SZX → CKG Jul 21, 14:55 UTCJul 21, 15:05 UTC10m
2026-07-21 CHH7772 - Jul 21, 12:55 UTCJul 21, 13:40 UTC45m
2026-07-21 CHH7771 - Jul 21, 07:20 UTCJul 21, 08:00 UTC40m
2026-07-21 CHH7176 - Jul 21, 05:45 UTCJul 21, 05:55 UTC10m
2026-07-21 CHH7175 - Jul 21, 00:15 UTCJul 21, 00:25 UTC10m
2026-07-20 CHH6055 SZX → LHW Jul 20, 09:40 UTCJul 20, 09:50 UTC10m
2026-07-19 CHH7763 SZX → NKG Jul 19, 22:40 UTCJul 19, 22:50 UTC10m
2026-07-19 CHH6056 LHW → SZX Jul 19, 16:30 UTCJul 19, 16:40 UTC10m
2026-07-19 CHH6055 SZX → LHW Jul 19, 09:30 UTCJul 19, 09:40 UTC10m
2026-07-19 CHH7176 - Jul 19, 06:05 UTCJul 19, 06:15 UTC10m
2026-07-19 CHH7175 - Jul 19, 00:25 UTCJul 19, 00:35 UTC10m
2026-07-18 CHH6336 - Jul 18, 16:25 UTCJul 18, 16:35 UTC10m
2026-07-18 CHH7924 - Jul 18, 06:30 UTCJul 18, 09:30 UTC3h 0m
2026-07-18 CHH7923 - Jul 18, 01:05 UTCJul 18, 04:15 UTC3h 11m
2026-07-16 CHH7367 - Jul 16, 13:40 UTCJul 16, 14:00 UTC20m
2026-07-16 CHH430 - Jul 16, 08:20 UTCJul 16, 08:35 UTC15m
2026-07-16 CHH430 - Jul 16, 07:00 UTCJul 16, 07:15 UTC15m
2026-07-16 CHH429 - Jul 16, 04:30 UTCJul 16, 04:55 UTC25m
2026-07-16 CHH429 - Jul 16, 00:30 UTCJul 16, 03:30 UTC3h 0m
2026-07-15 CHH7996 - Jul 15, 18:55 UTCJul 15, 19:05 UTC10m
2026-07-15 CHH7996 - Jul 15, 17:35 UTCJul 15, 17:50 UTC15m
2026-07-15 CHH7995 - Jul 15, 11:30 UTCJul 15, 14:25 UTC2h 55m
2026-07-15 CHH474 - Jul 15, 05:45 UTCJul 15, 07:10 UTC1h 25m
2026-07-15 CHH473 - Jul 15, 01:55 UTCJul 15, 03:20 UTC1h 25m
2026-07-14 CHH7448 - Jul 14, 07:00 UTCJul 14, 14:00 UTC7h 0m
2026-07-13 CHH7185 - Jul 13, 23:10 UTCJul 13, 23:30 UTC20m
2026-07-13 CHH7079 - Jul 13, 00:55 UTCJul 13, 01:10 UTC15m
2026-07-12 CHH7996 - Jul 12, 19:01 UTCJul 12, 19:15 UTC15m
2026-07-12 CHH7996 - Jul 12, 17:40 UTCJul 12, 17:55 UTC15m
2026-07-12 CHH7995 - Jul 12, 15:15 UTCJul 12, 15:40 UTC25m
2026-07-12 CHH7995 - Jul 12, 14:01 UTCJul 12, 14:10 UTC10m
2026-07-12 CHH7995 - Jul 12, 11:05 UTCJul 12, 11:20 UTC15m
2026-07-12 CHH474 - Jul 12, 05:40 UTCJul 12, 07:01 UTC1h 20m
2026-07-12 CHH473 - Jul 12, 02:15 UTCJul 12, 03:50 UTC1h 35m
2026-07-12 CHH473 - Jul 12, 01:10 UTCJul 12, 01:20 UTC10m
2026-07-10 CHH424 - Jul 10, 04:40 UTCJul 10, 06:05 UTC1h 25m
2026-07-10 CHH423 - Jul 10, 01:35 UTCJul 10, 03:00 UTC1h 25m

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-207S page for operator, model, and routing details .

Mode-S 78158C frequently asked

What is Mode-S code 78158C?
78158C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-207S.
Where is Mode-S 78158C registered?
Mode-S code 78158C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78158C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 00:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78158C, octal 36012614, decimal 7,869,836.
What flights does 78158C operate?
Mode-S 78158C has broadcast 20 distinct callsigns, including CHH7923, CHH7769, CHH473, CHH7924, CHH7630.