Apparatus

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sensors Mode-S transponder

888143

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A646 · AIRBUS A-321neo

Hex
888143
Octal
42100503
Decimal
8,945,987
Country
VN
Tail
VN-A646
Type
A21N
No current signal · last broadcast 4h ago
Flights observed
201
Distinct callsigns
20
Country
VN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 888143.

Country allocation

The ICAO 24-bit address 888143 falls within the block assigned to Vietnam (VN) by ICAO Annex 10, Volume III. Every aircraft registered in Vietnam 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
VJC821 - 24 2026-07-12
VJC820 - 23 2026-07-12
VJC91 - 19 2026-07-10
VJC822 - 18 2026-06-28
VJC823 - 13 2026-06-29
VJC92 - 11 2026-06-27
VJC825 - 8 2026-07-12
VJC877 - 7 2026-06-24
VJC876 - 6 2026-06-24
VJC826 VietJet Air 6 2026-05-11
VJC885 VietJet Air 4 2026-05-23
VJC862 VietJet Air 4 2026-05-19
VJC828 - 4 2026-07-08
VJC984 - 3 2026-06-22
VJC886 VietJet Air 3 2026-05-23
VJC282 VietJet Air 3 2026-07-07
VJC986 - 2 2026-06-20
VJC916 VietJet Air 2 2026-06-04
VJC915 VietJet Air 2 2026-06-04
VJC887 - 2 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 VJC167 - Jul 14, 16:25 UTCJul 14, 16:40 UTC15m
2026-07-14 VJC148 - Jul 14, 12:05 UTCJul 14, 12:15 UTC10m
2026-07-12 VJC821 - Jul 12, 17:30 UTCJul 13, 08:45 UTC15h 15m
2026-07-12 VJC820 - Jul 12, 13:55 UTCJul 12, 16:05 UTC2h 10m
2026-07-12 VJC820 - Jul 12, 07:15 UTCJul 12, 13:05 UTC5h 50m
2026-07-12 VJC825 - Jul 12, 05:25 UTCJul 12, 05:50 UTC25m
2026-07-11 VJC821 - Jul 11, 17:45 UTCJul 11, 20:40 UTC2h 55m
2026-07-11 VJC820 PER → HND Jul 11, 02:35 UTCJul 11, 16:05 UTC13h 30m
2026-07-10 VJC91 - Jul 10, 07:20 UTCJul 11, 00:40 UTC17h 20m
2026-07-10 VJC91 - Jul 10, 02:50 UTCJul 11, 00:40 UTC21h 50m
2026-07-09 VJC91 - Jul 9, 21:05 UTCJul 10, 00:55 UTC3h 50m
2026-07-09 VJC91 - Jul 9, 03:15 UTCJul 10, 00:55 UTC21h 40m
2026-07-09 VJC829 - Jul 9, 01:00 UTCJul 10, 00:45 UTC23h 45m
2026-07-08 VJC828 - Jul 8, 08:05 UTCJul 8, 23:25 UTC15h 20m
2026-07-07 VJC887 - Jul 7, 14:40 UTCJul 8, 06:55 UTC16h 15m
2026-07-07 VJC282 SGN → HPH Jul 7, 13:30 UTCJul 7, 13:45 UTC15m
2026-06-29 VJC823 - Jun 29, 00:39 UTCJun 29, 04:25 UTC3h 45m
2026-06-28 VJC822 - Jun 28, 07:14 UTCJun 28, 22:59 UTC15h 45m
2026-06-28 VJC822 - Jun 28, 02:49 UTCJun 28, 22:59 UTC20h 10m
2026-06-28 VJC822 PER → NRT Jun 28, 02:39 UTCJun 28, 22:59 UTC20h 20m
2026-06-27 VJC91 - Jun 27, 08:05 UTCJun 28, 01:10 UTC17h 5m
2026-06-27 VJC92 PER → PER Jun 27, 03:15 UTCJun 28, 01:10 UTC21h 55m
2026-06-26 VJC91 - Jun 26, 07:50 UTCJun 27, 00:25 UTC16h 35m
2026-06-26 VJC92 PER → PER Jun 26, 02:54 UTCJun 27, 00:25 UTC21h 30m
2026-06-25 VJC91 - Jun 25, 07:49 UTCJun 26, 00:39 UTC16h 50m
2026-06-25 VJC887 - Jun 25, 01:19 UTCJun 25, 06:09 UTC4h 50m
2026-06-25 VJC270 SGN → HPH Jun 25, 00:05 UTCJun 25, 00:29 UTC25m
2026-06-24 VJC877 - Jun 24, 12:20 UTCJun 24, 12:30 UTC10m
2026-06-24 VJC876 - Jun 24, 10:25 UTCJun 24, 10:45 UTC20m
2026-06-24 VJC823 - Jun 24, 01:14 UTCJun 24, 04:55 UTC3h 40m
2026-06-23 VJC822 - Jun 23, 19:55 UTCJun 23, 23:34 UTC3h 40m
2026-06-23 VJC822 - Jun 23, 03:20 UTCJun 23, 23:34 UTC20h 15m
2026-06-23 VJC822 - Jun 23, 01:04 UTCJun 23, 23:34 UTC22h 30m
2026-06-22 VJC828 - Jun 22, 11:35 UTCJun 22, 23:14 UTC11h 40m
2026-06-22 VJC984 - Jun 22, 05:34 UTCJun 22, 10:05 UTC4h 30m
2026-06-21 VJC159 HAN → SGN Jun 21, 17:10 UTCJun 22, 03:24 UTC10h 15m
2026-06-21 VJ152 - Jun 21, 14:44 UTCJun 21, 15:25 UTC40m
2026-06-21 VJC92 PER → HPH Jun 21, 03:05 UTCJun 21, 13:20 UTC10h 15m
2026-06-20 VJC91 HKG → PER Jun 20, 11:49 UTCJun 21, 00:45 UTC12h 55m
2026-06-20 VJC986 - Jun 20, 10:09 UTCJun 20, 10:29 UTC20m
2026-06-20 VJC811 - Jun 20, 03:29 UTCJun 20, 03:39 UTC10m
2026-06-19 VJC821 - Jun 19, 17:29 UTCJun 19, 21:09 UTC3h 40m
2026-06-19 VJC823 NRT → HND Jun 19, 00:20 UTCJun 19, 15:59 UTC15h 40m
2026-06-18 VJC822 - Jun 18, 14:01 UTCJun 18, 22:40 UTC8h 40m
2026-06-18 VJC805 PER → BKK Jun 18, 03:00 UTCJun 18, 12:45 UTC9h 45m
2026-06-17 VJC91 - Jun 17, 13:45 UTCJun 18, 01:00 UTC11h 15m
2026-06-17 VJC282 SGN → HPH Jun 17, 12:30 UTCJun 17, 12:50 UTC20m
2026-06-16 VJC812 SIN → SGN Jun 16, 11:35 UTCJun 17, 08:20 UTC20h 46m
2026-06-16 VJC984 - Jun 16, 05:25 UTCJun 16, 10:15 UTC4h 50m
2026-06-15 VJC821 HND → SGN Jun 15, 17:15 UTCJun 16, 03:55 UTC10h 40m

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 VN-A646 page for operator, model, and routing details .

Mode-S 888143 frequently asked

What is Mode-S code 888143?
888143 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A646.
Where is Mode-S 888143 registered?
Mode-S code 888143 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 888143 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 888143, octal 42100503, decimal 8,945,987.
What flights does 888143 operate?
Mode-S 888143 has broadcast 20 distinct callsigns, including VJC821, VJC820, VJC91, VJC822, VJC823.