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 4h ago
Flights observed
208
Distinct callsigns
20
Country
CN
Last broadcast
4h ago

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
CHH7769 - 12 2026-06-02
CHH7923 - 11 2026-07-08
CHH7630 Hainan Airlines 11 2026-06-02
CHH473 - 11 2026-07-12
CHH7924 - 10 2026-07-08
CHH7770 - 10 2026-06-02
CHH7629 Hainan Airlines 9 2026-06-02
CHH430 - 8 2026-07-05
CHH7734 Hainan Airlines 7 2026-05-31
CHH474 - 7 2026-07-12
CHH7771 - 6 2026-06-19
CHH429 - 6 2026-07-05
CHH7772 - 5 2026-06-19
CHH7995 - 4 2026-07-12
CHH7322 - 4 2026-06-17
CHH423 - 4 2026-07-10
CHH7996 - 3 2026-07-12
CHH7733 Hainan Airlines 3 2026-05-31
CHH7567 Hainan Airlines 3 2026-05-25
CHH7398 Hainan Airlines 3 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CHH7347 - Jul 14, 07:00 UTCJul 14, 07:20 UTC20m
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
2026-07-09 CHH424 - Jul 9, 05:05 UTCJul 10, 03:00 UTC21h 55m
2026-07-09 CHH424 - Jul 9, 04:30 UTCJul 10, 03:00 UTC22h 30m
2026-07-08 CHH423 - Jul 8, 09:25 UTCJul 9, 02:35 UTC17h 10m
2026-07-08 CHH7924 - Jul 8, 06:40 UTCJul 9, 02:35 UTC19h 55m
2026-07-08 CHH7923 - Jul 8, 04:00 UTCJul 8, 04:20 UTC20m
2026-07-07 CHH7924 - Jul 7, 08:55 UTCJul 8, 01:35 UTC16h 40m
2026-07-07 CHH7924 - Jul 7, 06:15 UTCJul 8, 01:35 UTC19h 20m
2026-07-07 CHH7923 - Jul 7, 04:20 UTCJul 7, 04:45 UTC25m
2026-07-06 CHH7923 - Jul 6, 09:10 UTCJul 7, 02:05 UTC16h 55m
2026-07-06 CHH7924 - Jul 6, 06:25 UTCJul 6, 06:45 UTC20m
2026-07-05 CHH7923 - Jul 5, 14:20 UTCJul 6, 04:15 UTC13h 55m
2026-07-05 CHH430 - Jul 5, 06:55 UTCJul 5, 08:35 UTC1h 40m
2026-07-05 CHH429 - Jul 5, 00:25 UTCJul 5, 04:50 UTC4h 25m
2026-07-04 CHH7088 - Jul 4, 06:35 UTCJul 4, 06:45 UTC10m
2026-07-02 CHH7924 - Jul 2, 08:55 UTCJul 3, 01:10 UTC16h 15m
2026-07-02 CHH7924 - Jul 2, 06:20 UTCJul 2, 06:41 UTC21m
2026-07-01 CHH7923 - Jul 1, 09:05 UTCJul 2, 04:25 UTC19h 20m
2026-07-01 CHH7923 - Jul 1, 08:50 UTCJul 2, 04:25 UTC19h 35m
2026-07-01 CHH7924 - Jul 1, 06:20 UTCJul 1, 06:40 UTC20m
2026-06-30 CHH7923 - Jun 30, 09:10 UTCJul 1, 04:20 UTC19h 10m
2026-06-30 CHH7923 - Jun 30, 06:35 UTCJul 1, 04:20 UTC21h 45m
2026-06-29 CHH7923 - Jun 29, 09:05 UTCJun 30, 04:40 UTC19h 36m
2026-06-29 CHH7924 - Jun 29, 06:29 UTCJun 29, 06:50 UTC20m
2026-06-29 CHH7923 - Jun 29, 04:14 UTCJun 29, 04:30 UTC15m
2026-06-28 CHH7924 - Jun 28, 09:10 UTCJun 29, 01:55 UTC16h 45m
2026-06-28 CHH7924 - Jun 28, 06:24 UTCJun 28, 06:44 UTC20m
2026-06-28 CHH7923 - Jun 28, 04:20 UTCJun 28, 04:40 UTC20m
2026-06-27 CHH7350 - Jun 27, 10:45 UTCJun 28, 01:59 UTC15h 15m
2026-06-27 CHH7350 - Jun 27, 04:34 UTCJun 28, 01:59 UTC21h 25m
2026-06-27 CHH423 - Jun 27, 02:20 UTCJun 27, 02:45 UTC25m
2026-06-26 CHH7350 CKG → SYX Jun 26, 04:45 UTCJun 26, 13:55 UTC9h 10m
2026-06-25 CHH423 - Jun 25, 13:45 UTCJun 26, 03:00 UTC13h 15m
2026-06-25 CHH430 - Jun 25, 08:14 UTCJun 25, 08:55 UTC40m
2026-06-25 CHH430 - Jun 25, 07:09 UTCJun 25, 07:25 UTC15m
2026-06-25 CHH429 - Jun 25, 00:24 UTCJun 25, 04:45 UTC4h 20m
2026-06-24 CHH7182 - Jun 24, 05:20 UTCJun 24, 08:14 UTC2h 55m
2026-06-23 CHH706 - Jun 23, 13:45 UTCJun 23, 13:59 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.

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 4h ago.
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 CHH7769, CHH7923, CHH7630, CHH473, CHH7924.