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 20h ago
Flights observed
153
Distinct callsigns
20
Country
CN
Last broadcast
20h 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
CHH473 - 12 2026-06-29
CHH447 Hainan Airlines 9 2026-06-10
CHH474 - 8 2026-06-29
CHH7996 - 7 2026-06-27
CHH7909 Hainan Airlines 7 2026-06-11
CHH702 - 6 2026-07-03
CHH448 Hainan Airlines 6 2026-06-12
CHH7995 - 5 2026-06-27
CHH747 - 5 2026-06-12
CHH450 - 5 2026-07-04
CHH430 - 5 2026-07-09
CHH756 - 4 2026-07-13
CHH755 - 4 2026-07-13
CHH701 - 4 2026-07-03
CHH449 - 4 2026-07-04
CHH429 - 4 2026-07-09
CHH7367 - 3 2026-07-09
CHH7910 Hainan Airlines 2 2026-06-10
CHH7482 - 2 2026-06-23
CHH748 Hainan Airlines 2 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CHH756 - Jul 13, 13:05 UTCJul 13, 13:20 UTC15m
2026-07-13 CHH755 - Jul 13, 11:20 UTCJul 13, 11:35 UTC15m
2026-07-12 CHH7082 - Jul 12, 11:10 UTCJul 12, 11:25 UTC15m
2026-07-11 CHH6394 - Jul 11, 15:10 UTCJul 11, 15:25 UTC15m
2026-07-09 CHH7367 - Jul 9, 13:50 UTCJul 9, 14:05 UTC15m
2026-07-09 CHH430 - Jul 9, 11:40 UTCJul 9, 11:50 UTC10m
2026-07-09 CHH430 - Jul 9, 07:10 UTCJul 9, 08:40 UTC1h 30m
2026-07-09 CHH429 - Jul 9, 00:35 UTCJul 9, 05:00 UTC4h 25m
2026-07-06 CHH7367 - Jul 6, 13:25 UTCJul 6, 13:45 UTC20m
2026-07-06 CHH430 - Jul 6, 07:10 UTCJul 6, 08:50 UTC1h 40m
2026-07-06 CHH429 - Jul 6, 00:30 UTCJul 6, 05:00 UTC4h 30m
2026-07-04 CHH450 - Jul 4, 12:35 UTCJul 4, 15:30 UTC2h 55m
2026-07-04 CHH449 - Jul 4, 04:35 UTCJul 4, 10:50 UTC6h 15m
2026-07-03 CHH702 - Jul 3, 12:35 UTCJul 4, 02:40 UTC14h 5m
2026-07-03 CHH701 - Jul 3, 10:40 UTCJul 3, 10:55 UTC15m
2026-07-02 CHH756 - Jul 2, 13:05 UTCJul 2, 13:20 UTC15m
2026-07-02 CHH755 - Jul 2, 11:00 UTCJul 2, 11:15 UTC15m
2026-07-01 CHH7082 - Jul 1, 11:25 UTCJul 1, 11:40 UTC15m
2026-07-01 CHH7237 - Jul 1, 03:35 UTCJul 1, 03:55 UTC20m
2026-06-30 CHH7279 - Jun 30, 05:10 UTCJun 30, 08:10 UTC3h 0m
2026-06-29 CHH7702 - Jun 29, 23:29 UTCJun 29, 23:39 UTC10m
2026-06-29 CHH7713 - Jun 29, 15:39 UTCJun 29, 15:49 UTC10m
2026-06-29 CHH474 - Jun 29, 05:45 UTCJun 29, 07:15 UTC1h 30m
2026-06-29 CHH473 - Jun 29, 02:00 UTCJun 29, 03:20 UTC1h 20m
2026-06-28 CHH7436 - Jun 28, 14:59 UTCJun 28, 15:14 UTC15m
2026-06-28 CHH7435 - Jun 28, 09:20 UTCJun 28, 09:30 UTC10m
2026-06-28 CHH7190 KWE → PEK Jun 28, 07:29 UTCJun 28, 07:40 UTC10m
2026-06-28 CHH7189 - Jun 28, 00:35 UTCJun 28, 00:55 UTC20m
2026-06-27 CHH7996 - Jun 27, 17:49 UTCJun 27, 19:39 UTC1h 50m
2026-06-27 CHH7995 - Jun 27, 11:30 UTCJun 27, 15:45 UTC4h 15m
2026-06-27 CHH474 - Jun 27, 05:44 UTCJun 27, 07:10 UTC1h 25m
2026-06-27 CHH473 - Jun 27, 00:55 UTCJun 27, 03:20 UTC2h 25m
2026-06-25 CHH7052 - Jun 25, 01:54 UTCJun 25, 06:09 UTC4h 15m
2026-06-24 CHH756 - Jun 24, 13:40 UTCJun 24, 13:54 UTC15m
2026-06-24 CHH497 - Jun 24, 11:34 UTCJun 24, 12:09 UTC35m
2026-06-24 CHH498 - Jun 24, 04:34 UTCJun 24, 04:50 UTC15m
2026-06-24 CHH755 - Jun 24, 02:20 UTCJun 24, 02:54 UTC35m
2026-06-23 CHH702 - Jun 23, 12:35 UTCJun 23, 14:04 UTC1h 30m
2026-06-23 CHH701 - Jun 23, 10:24 UTCJun 23, 10:44 UTC20m
2026-06-23 CHH7482 - Jun 23, 01:15 UTCJun 23, 07:09 UTC5h 55m
2026-06-22 CHH7196 - Jun 22, 07:25 UTCJun 22, 07:34 UTC10m
2026-06-22 CHH7195 - Jun 22, 01:10 UTCJun 22, 01:19 UTC10m
2026-06-21 CHH7996 - Jun 21, 18:44 UTCJun 21, 19:24 UTC40m
2026-06-21 CHH7996 - Jun 21, 17:45 UTCJun 21, 18:00 UTC15m
2026-06-21 CHH7995 - Jun 21, 11:15 UTCJun 21, 15:49 UTC4h 35m
2026-06-21 CHH474 - Jun 21, 05:35 UTCJun 21, 07:14 UTC1h 40m
2026-06-21 CHH473 - Jun 21, 01:45 UTCJun 21, 03:19 UTC1h 35m
2026-06-21 CHH473 - Jun 21, 00:45 UTCJun 21, 00:59 UTC15m
2026-06-20 CHH7996 - Jun 20, 18:45 UTCJun 20, 19:24 UTC40m
2026-06-20 CHH7996 - Jun 20, 17:39 UTCJun 20, 17:59 UTC20m

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 20h 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 CHH473, CHH447, CHH474, CHH7996, CHH7909.