Apparatus

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sensors Mode-S transponder

78101C

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-7990 · BOEING 737-800

Hex
78101C
Octal
36010034
Decimal
7,868,444
Country
CN
Tail
B-7990
Type
B738
No current signal · last broadcast Jul 21, 15:40 UTC
Flights observed
56
Distinct callsigns
20
Country
CN
Last broadcast
Jul 21, 15:40 UTC

Last known position

Most recent position reported by Mode-S 78101C.

Country allocation

The ICAO 24-bit address 78101C 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
LKE9662 - 7 2026-07-01
LKE9844 Lucky Air 5 2026-06-11
LKE9556 - 4 2026-06-29
LKE9972 Lucky Air 3 2026-06-24
LKE9971 Lucky Air 3 2026-06-23
LKE9966 Lucky Air 3 2026-06-22
LKE9965 Lucky Air 3 2026-06-25
LKE9695 Lucky Air 3 2026-06-30
LKE9555 - 3 2026-06-29
LKE9980 Lucky Air 2 2026-06-09
LKE9890 - 2 2026-06-17
LKE9889 Lucky Air 2 2026-06-17
LKE9879 Lucky Air 2 2026-06-09
LKE9668 Lucky Air 2 2026-06-22
LKE9884 - 1 2026-06-25
LKE9880 Lucky Air 1 2026-04-16
LKE9877 - 1 2026-06-27
LKE9707 - 1 2026-07-18
LKE9696 - 1 2026-07-21
LKE9692 Lucky Air 1 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 LKE9696 - Jul 21, 04:15 UTCJul 21, 15:40 UTC11h 25m
2026-07-20 - - Jul 20, 08:05 UTCJul 21, 07:00 UTC22h 54m
2026-07-18 LKE9707 - Jul 18, 00:25 UTCJul 18, 03:10 UTC2h 46m
2026-07-01 LKE9662 - Jul 1, 06:00 UTCJul 1, 11:50 UTC5h 50m
2026-06-30 LKE9662 - Jun 30, 14:00 UTCJul 1, 11:50 UTC21h 50m
2026-06-30 LKE9662 - Jun 30, 11:10 UTCJul 1, 06:20 UTC19h 10m
2026-06-30 LKE9662 - Jun 30, 10:55 UTCJul 1, 06:20 UTC19h 25m
2026-06-30 LKE9695 TFU → SYX Jun 30, 04:55 UTCJun 30, 14:00 UTC9h 5m
2026-06-29 LKE9556 - Jun 29, 09:05 UTCJun 29, 09:20 UTC15m
2026-06-29 LKE9555 - Jun 29, 04:45 UTCJun 29, 05:00 UTC15m
2026-06-27 LKE9877 - Jun 27, 13:09 UTCJun 27, 13:24 UTC15m
2026-06-26 LKE9695 TFU → SYX Jun 26, 00:20 UTCJun 26, 14:09 UTC13h 50m
2026-06-25 LKE9965 KMG → SYX Jun 25, 07:05 UTCJun 26, 03:50 UTC20h 45m
2026-06-25 LKE9884 - Jun 25, 03:54 UTCJun 26, 00:39 UTC20h 45m
2026-06-24 LKE9972 HAK → KMG Jun 24, 10:25 UTCJun 25, 01:19 UTC14h 55m
2026-06-24 LKE9972 HAK → KMG Jun 24, 02:45 UTCJun 24, 12:54 UTC10h 10m
2026-06-23 LKE9971 KMG → HAK Jun 23, 23:55 UTCJun 24, 00:20 UTC25m
2026-06-22 LKE9668 HAK → TFU Jun 22, 13:59 UTCJun 22, 14:14 UTC15m
2026-06-22 LKE9966 SYX → KMG Jun 22, 00:24 UTCJun 22, 11:44 UTC11h 20m
2026-06-18 LKE9561 - Jun 18, 06:55 UTCJun 18, 23:30 UTC16h 35m
2026-06-17 LKE9890 - Jun 17, 17:00 UTCJun 18, 07:00 UTC14h 0m
2026-06-17 LKE9889 KMG → SZX Jun 17, 15:35 UTCJun 17, 15:46 UTC10m
2026-06-17 LKE9889 KMG → SZX Jun 17, 14:25 UTCJun 17, 14:35 UTC10m
2026-06-14 LKE9692 SYX → TFU Jun 14, 05:55 UTCJun 14, 06:10 UTC15m
2026-06-14 LKE9691 TFU → SYX Jun 14, 03:00 UTCJun 14, 03:20 UTC20m
2026-06-12 LKE9695 TFU → SYX Jun 12, 00:35 UTCJun 12, 14:01 UTC13h 25m
2026-06-11 LKE9966 SYX → KMG Jun 11, 12:50 UTCJun 12, 11:00 UTC22h 10m
2026-06-11 LKE9844 KOW → HAK Jun 11, 10:00 UTCJun 12, 03:40 UTC17h 41m
2026-06-11 LKE9844 KOW → HAK Jun 11, 03:05 UTCJun 12, 00:35 UTC21h 31m
2026-06-10 LKE9971 KMG → HAK Jun 10, 07:45 UTCJun 11, 00:20 UTC16h 35m
2026-06-09 LKE9980 SZX → KMG Jun 9, 12:50 UTCJun 10, 07:55 UTC19h 5m
2026-06-09 LKE9980 SZX → KMG Jun 9, 12:05 UTCJun 9, 12:15 UTC10m
2026-06-09 LKE9879 KMG → FOC Jun 9, 01:40 UTCJun 9, 01:50 UTC10m
2026-06-07 LKE9971 KMG → HAK Jun 7, 07:50 UTCJun 8, 00:15 UTC16h 25m
2026-06-07 LKE9966 SYX → KMG Jun 7, 03:40 UTCJun 8, 00:15 UTC20h 35m
2026-06-06 LKE9965 KMG → SYX Jun 6, 14:09 UTCJun 7, 07:50 UTC17h 40m
2026-06-06 LKE9965 KMG → SYX Jun 6, 11:55 UTCJun 7, 07:50 UTC19h 55m
2026-06-06 LKE9972 HAK → KMG Jun 6, 00:10 UTCJun 6, 14:14 UTC14h 5m
2026-06-05 LKE9890 SZX → KMG Jun 5, 17:05 UTCJun 6, 14:14 UTC21h 10m
2026-06-03 LKE9684 SJW → TFU Jun 3, 07:20 UTCJun 3, 07:30 UTC10m
2026-06-03 LKE9683 TFU → SJW Jun 3, 03:00 UTCJun 3, 03:15 UTC15m
2026-05-29 LKE9668 HAK → TFU May 29, 14:00 UTCMay 29, 14:15 UTC15m
2026-05-28 LKE9662 ZUH → TFU May 28, 15:30 UTCMay 29, 06:35 UTC15h 5m
2026-05-28 LKE9667 - May 28, 13:10 UTCMay 28, 13:25 UTC15m
2026-05-16 LKE9879 KMG → FOC May 16, 01:40 UTCMay 16, 01:55 UTC15m
2026-05-12 LKE9844 KOW → HAK May 12, 03:15 UTCMay 12, 11:05 UTC7h 50m
2026-05-08 LKE9662 ZUH → TFU May 8, 02:39 UTCMay 8, 06:30 UTC3h 50m
2026-05-06 LKE9662 ZUH → TFU May 6, 02:40 UTCMay 6, 06:45 UTC4h 5m
2026-05-04 LKE9556 SJW → KMG May 4, 08:55 UTCMay 4, 09:15 UTC20m
2026-05-04 LKE9555 SJW → HRB May 4, 04:44 UTCMay 4, 05:00 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-7990 page for operator, model, and routing details .

Mode-S 78101C frequently asked

What is Mode-S code 78101C?
78101C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-7990.
Where is Mode-S 78101C registered?
Mode-S code 78101C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78101C broadcasting right now?
No active broadcast right now. Last signal was Jul 21, 15:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78101C, octal 36010034, decimal 7,868,444.
What flights does 78101C operate?
Mode-S 78101C has broadcast 20 distinct callsigns, including LKE9662, LKE9844, LKE9556, LKE9972, LKE9971.