sensors Mode-S transponder

8881EF

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A543 · AIRBUS A-321neo

Hex
8881EF
Octal
42100757
Decimal
8,946,159
Country
VN
Tail
VN-A543
Type
A21N
No current signal · last broadcast 4d ago
Flights observed
88
Distinct callsigns
20
Country
VN
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 8881EF.

Country allocation

The ICAO 24-bit address 8881EF 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
VJC834 VietJet Air 5 2026-05-09
VJC828 VietJet Air 5 2026-04-20
VJC835 VietJet Air 4 2026-05-09
VJC829 VietJet Air 4 2026-04-21
VJC947 VietJet Air 3 2026-05-25
VJC946 VietJet Air 3 2026-05-25
VJC928 VietJet Air 3 2026-05-16
VJC884 VietJet Air 3 2026-04-16
VJC883 VietJet Air 3 2026-04-16
VJC5306 - 3 2026-05-03
VJC3908 VietJet Air 3 2026-04-24
VJC939 VietJet Air 2 2026-05-15
VJC907 VietJet Air 2 2026-04-29
VJC868 VietJet Air 2 2026-04-18
VJC861 VietJet Air 2 2026-04-23
VJC860 VietJet Air 2 2026-04-23
VJC854 VietJet Air 2 2026-05-11
VJC5347 - 2 2026-05-05
VJC3909 VietJet Air 2 2026-04-24
VJC998 VietJet Air 1 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-25 VJC947 KHH → HAN May 25, 11:00 UTCMay 25, 11:55 UTC55m
2026-05-25 VJC946 HAN → KHH May 25, 08:50 UTCMay 25, 10:05 UTC1h 15m
2026-05-18 VJC902 BKK → HAN May 18, 07:30 UTCMay 18, 07:55 UTC25m
2026-05-17 VJC943 TPE → HAN May 17, 12:15 UTCMay 18, 05:45 UTC17h 30m
2026-05-17 VJC942 HAN → TPE May 17, 01:00 UTCMay 17, 10:25 UTC9h 25m
2026-05-16 VJC928 CGK → HAN May 16, 07:25 UTCMay 16, 23:20 UTC15h 54m
2026-05-15 VJC929 HAN → CGK May 15, 10:25 UTCMay 16, 05:05 UTC18h 39m
2026-05-15 VJC939 KIX → HAN May 15, 00:45 UTCMay 15, 09:10 UTC8h 25m
2026-05-14 VJC938 HAN → KIX May 14, 22:00 UTCMay 14, 22:55 UTC55m
2026-05-12 VJC809 SGN → HKT May 12, 11:50 UTCMay 13, 06:10 UTC18h 20m
2026-05-12 VJC983 PQC → SIN May 12, 10:05 UTCMay 12, 10:15 UTC10m
2026-05-12 VJC984 SIN → PQC May 12, 05:40 UTCMay 12, 06:05 UTC25m
2026-05-12 VJC811 SGN → SIN May 12, 03:40 UTCMay 12, 03:55 UTC15m
2026-05-11 VJC854 CGK → SGN May 11, 07:50 UTCMay 12, 03:55 UTC20h 5m
2026-05-11 VJC854 CGK → SGN May 11, 06:50 UTCMay 12, 03:55 UTC21h 6m
2026-05-11 VJC855 SGN → CGK May 11, 05:20 UTCMay 11, 05:35 UTC15m
2026-05-09 VJC835 ICN → CXR May 9, 22:05 UTCMay 10, 01:00 UTC2h 55m
2026-05-09 VJC834 CXR → ICN May 9, 08:00 UTCMay 9, 20:55 UTC12h 55m
2026-05-08 VJC5349 - May 8, 15:05 UTCMay 9, 12:30 UTC21h 25m
2026-05-08 VJC5348 - May 8, 10:35 UTCMay 9, 08:05 UTC21h 30m
2026-05-06 VJC5102 CXR → CXR May 6, 08:55 UTCMay 6, 14:10 UTC5h 15m
2026-05-05 VJC5347 - May 5, 14:40 UTCMay 6, 09:15 UTC18h 35m
2026-05-05 VJC5347 - May 5, 11:30 UTCMay 6, 09:15 UTC21h 45m
2026-05-04 VJC835 ICN → CXR May 4, 21:55 UTCMay 5, 15:35 UTC17h 40m
2026-05-04 VJC834 CXR → ICN May 4, 07:45 UTCMay 4, 20:35 UTC12h 51m
2026-05-03 VJC5306 - May 3, 16:05 UTCMay 4, 08:35 UTC16h 30m
2026-05-03 VJC5306 - May 3, 11:50 UTCMay 4, 08:35 UTC20h 45m
2026-05-03 VJC5306 - May 3, 11:15 UTCMay 4, 08:35 UTC21h 20m
2026-05-02 VJC835 ICN → CXR May 2, 21:55 UTCMay 3, 16:09 UTC18h 14m
2026-05-02 VJC834 CXR → ICN May 2, 17:55 UTCMay 2, 20:40 UTC2h 45m
2026-05-01 VJC834 CXR → ICN May 1, 23:50 UTCMay 2, 20:40 UTC20h 51m
2026-05-01 VJC835 ICN → CXR May 1, 22:00 UTCMay 2, 20:40 UTC22h 40m
2026-05-01 VJC834 CXR → ICN May 1, 07:50 UTCMay 1, 20:45 UTC12h 55m
2026-05-01 VJC901 HAN → BKK May 1, 05:15 UTCMay 1, 06:00 UTC45m
2026-04-30 VJC928 CGK → HAN Apr 30, 07:50 UTCMay 1, 06:00 UTC22h 11m
2026-04-30 VJC928 CGK → HAN Apr 30, 07:40 UTCMay 1, 05:45 UTC22h 5m
2026-04-29 VJC910 BOM → HAN Apr 29, 21:15 UTCApr 30, 06:15 UTC8h 59m
2026-04-29 VJC907 HAN → BOM Apr 29, 18:15 UTCApr 29, 18:40 UTC25m
2026-04-29 VJC907 HAN → BOM Apr 29, 07:15 UTCApr 29, 16:45 UTC9h 31m
2026-04-29 VJC915 HAN → SIN Apr 29, 05:20 UTCApr 29, 05:50 UTC30m
2026-04-27 VJC939 KIX → HAN Apr 27, 00:40 UTCApr 27, 01:25 UTC45m
2026-04-26 VJC947 KHH → HAN Apr 26, 11:10 UTCApr 26, 22:25 UTC11h 15m
2026-04-26 VJC946 HAN → KHH Apr 26, 02:25 UTCApr 26, 10:15 UTC7h 50m
2026-04-25 VJC960 HAN → ICN Apr 25, 22:20 UTCApr 25, 22:55 UTC35m
2026-04-25 VJC998 DPS → HAN Apr 25, 11:10 UTCApr 25, 12:25 UTC1h 15m
2026-04-24 VJC3909 CAN → SGN Apr 24, 20:05 UTCApr 24, 20:15 UTC10m
2026-04-24 VJC3908 SGN → CAN Apr 24, 17:45 UTCApr 24, 18:20 UTC35m
2026-04-24 VJC3908 SGN → CAN Apr 24, 15:50 UTCApr 24, 16:00 UTC10m
2026-04-24 VJC7079 MFM → HPH Apr 24, 08:35 UTCApr 24, 08:45 UTC10m
2026-04-24 VJC7078 - Apr 24, 06:45 UTCApr 24, 07:05 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 VN-A543 page for operator, model, and routing details .

Mode-S 8881EF frequently asked

What is Mode-S code 8881EF?
8881EF is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A543.
Where is Mode-S 8881EF registered?
Mode-S code 8881EF is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881EF broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881EF, octal 42100757, decimal 8,946,159.
What flights does 8881EF operate?
Mode-S 8881EF has broadcast 20 distinct callsigns, including VJC834, VJC828, VJC835, VJC829, VJC947.