Apparatus

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sensors Mode-S transponder

78157E

ICAO 24-bit transponder address · allocated to China

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

Hex
78157E
Octal
36012576
Decimal
7,869,822
Country
CN
Tail
B-207K
Type
B38M
No current signal · last broadcast Jul 26, 16:45 UTC
Flights observed
198
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 16:45 UTC

Last known position

Most recent position reported by Mode-S 78157E.

Country allocation

The ICAO 24-bit address 78157E 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 - 11 2026-07-11
CHH447 Hainan Airlines 10 2026-06-07
CHH748 - 8 2026-06-30
CHH7996 Hainan Airlines 7 2026-07-21
CHH7924 Hainan Airlines 7 2026-05-23
CHH7923 Hainan Airlines 7 2026-05-23
CHH449 - 7 2026-06-29
CHH7995 Hainan Airlines 6 2026-07-21
CHH702 - 6 2026-07-13
CHH474 - 6 2026-07-11
CHH450 - 6 2026-06-29
CHH756 - 5 2026-07-15
CHH747 Hainan Airlines 5 2026-06-01
CHH430 Hainan Airlines 5 2026-07-22
CHH755 - 4 2026-07-14
CHH7074 - 4 2026-07-18
CHH701 - 4 2026-07-13
CHH429 Hainan Airlines 4 2026-07-22
CHH7763 Hainan Airlines 3 2026-07-23
CHH706 Hainan Airlines 3 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CHH6056 LHW → SZX Jul 26, 16:35 UTCJul 26, 16:45 UTC10m
2026-07-25 CHH7764 NKG → SZX Jul 25, 05:45 UTCJul 25, 05:55 UTC10m
2026-07-24 CHH6055 SZX → LHW Jul 24, 09:20 UTCJul 24, 09:30 UTC10m
2026-07-24 CHH7764 NKG → SZX Jul 24, 05:15 UTCJul 24, 05:25 UTC10m
2026-07-23 CHH7763 SZX → NKG Jul 23, 22:30 UTCJul 23, 22:40 UTC10m
2026-07-23 CHH7734 CGO → SZX Jul 23, 18:45 UTCJul 23, 19:00 UTC15m
2026-07-23 CHH7733 - Jul 23, 11:50 UTCJul 23, 12:00 UTC10m
2026-07-23 CHH7156 NKG → SZX Jul 23, 09:50 UTCJul 23, 10:30 UTC40m
2026-07-23 CHH7155 SZX → NKG Jul 23, 02:20 UTCJul 23, 02:30 UTC10m
2026-07-22 CHH7398 HGH → SZX Jul 22, 23:55 UTCJul 23, 00:35 UTC40m
2026-07-22 CHH7377 PEK → HGH Jul 22, 16:35 UTCJul 22, 16:50 UTC15m
2026-07-22 CHH430 BKK → PEK Jul 22, 10:20 UTCJul 22, 12:00 UTC1h 40m
2026-07-22 CHH429 PEK → BKK Jul 22, 01:05 UTCJul 22, 05:25 UTC4h 20m
2026-07-21 CHH7996 BKK → PEK Jul 21, 22:40 UTCJul 21, 22:50 UTC10m
2026-07-21 CHH7996 BKK → PEK Jul 21, 17:40 UTCJul 21, 19:30 UTC1h 50m
2026-07-21 CHH7995 PEK → BKK Jul 21, 02:05 UTCJul 21, 16:10 UTC14h 5m
2026-07-20 CHH7996 BKK → PEK Jul 20, 19:20 UTCJul 20, 21:00 UTC1h 40m
2026-07-20 CHH7995 PEK → BKK Jul 20, 13:00 UTCJul 20, 17:55 UTC4h 55m
2026-07-20 CHH7706 SZX → PEK Jul 20, 07:50 UTCJul 20, 08:00 UTC10m
2026-07-20 CHH7706 SZX → PEK Jul 20, 05:20 UTCJul 20, 05:30 UTC10m
2026-07-20 CHH7701 - Jul 20, 03:40 UTCJul 20, 03:50 UTC10m
2026-07-20 CHH7701 - Jul 20, 00:50 UTCJul 20, 01:10 UTC20m
2026-07-18 CHH7070 KHN → HAK Jul 18, 12:40 UTCJul 19, 01:40 UTC13h 0m
2026-07-18 CHH7074 - Jul 18, 07:00 UTCJul 19, 01:40 UTC18h 40m
2026-07-18 CHH7074 - Jul 18, 02:25 UTCJul 18, 15:45 UTC13h 21m
2026-07-17 CHH460 SIN → HAK Jul 17, 09:04 UTCJul 18, 07:25 UTC22h 21m
2026-07-17 CHH459 - Jul 17, 06:29 UTCJul 17, 07:00 UTC30m
2026-07-15 CHH756 - Jul 15, 13:05 UTCJul 15, 13:25 UTC20m
2026-07-15 CHH498 - Jul 15, 04:35 UTCJul 15, 11:40 UTC7h 5m
2026-07-14 CHH755 - Jul 14, 13:05 UTCJul 15, 03:10 UTC14h 4m
2026-07-14 CHH755 - Jul 14, 11:00 UTCJul 14, 11:25 UTC25m
2026-07-13 CHH702 - Jul 13, 13:35 UTCJul 14, 11:25 UTC21h 50m
2026-07-13 CHH702 - Jul 13, 12:25 UTCJul 14, 11:25 UTC23h 0m
2026-07-13 CHH701 - Jul 13, 10:35 UTCJul 13, 10:50 UTC15m
2026-07-12 CHH702 - Jul 12, 12:25 UTCJul 12, 13:55 UTC1h 30m
2026-07-12 CHH701 - Jul 12, 10:25 UTCJul 12, 10:35 UTC10m
2026-07-12 CHH7482 - Jul 12, 01:10 UTCJul 12, 01:30 UTC20m
2026-07-11 CHH474 - Jul 11, 05:40 UTCJul 11, 07:05 UTC1h 25m
2026-07-11 CHH473 - Jul 11, 02:10 UTCJul 11, 03:50 UTC1h 40m
2026-07-11 CHH473 - Jul 11, 01:15 UTCJul 11, 01:30 UTC15m
2026-07-10 CHH7187 - Jul 10, 00:50 UTCJul 10, 01:10 UTC20m
2026-07-09 CHH7115 - Jul 9, 01:55 UTCJul 9, 02:05 UTC10m
2026-07-08 CHH7070 - Jul 8, 08:00 UTCJul 8, 16:00 UTC8h 0m
2026-07-07 CHH7082 - Jul 7, 14:20 UTCJul 8, 08:05 UTC17h 45m
2026-07-07 CHH7801 - Jul 7, 00:45 UTCJul 7, 01:05 UTC20m
2026-07-06 CHH7996 - Jul 6, 17:20 UTCJul 6, 18:55 UTC1h 35m
2026-07-06 CHH7995 - Jul 6, 11:20 UTCJul 6, 15:55 UTC4h 35m
2026-07-06 CHH474 - Jul 6, 05:45 UTCJul 6, 07:10 UTC1h 25m
2026-07-06 CHH473 - Jul 6, 02:15 UTCJul 6, 03:45 UTC1h 30m
2026-07-05 CHH7996 - Jul 5, 17:45 UTCJul 5, 19:20 UTC1h 35m

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

Mode-S 78157E frequently asked

What is Mode-S code 78157E?
78157E is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-207K.
Where is Mode-S 78157E registered?
Mode-S code 78157E is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78157E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78157E, octal 36012576, decimal 7,869,822.
What flights does 78157E operate?
Mode-S 78157E has broadcast 20 distinct callsigns, including CHH473, CHH447, CHH748, CHH7996, CHH7924.