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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 6h ago
Flights observed
226
Distinct callsigns
20
Country
VN
Last broadcast
6h 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
VJC883 - 7 2026-07-11
VJC828 - 6 2026-07-03
VJC7078 - 6 2026-07-14
VJC884 - 5 2026-07-11
VJC868 - 5 2026-07-07
VJC834 VietJet Air 5 2026-05-09
VJC829 - 5 2026-07-04
VJC7079 - 5 2026-07-14
VJC3908 - 5 2026-06-25
VJC947 - 4 2026-06-17
VJC946 - 4 2026-06-17
VJC907 VietJet Air 4 2026-06-17
VJC869 - 4 2026-07-08
VJC835 VietJet Air 4 2026-05-09
VJC272 - 4 2026-07-14
VJC1802 - 4 2026-07-10
VJC939 - 3 2026-06-15
VJC928 VietJet Air 3 2026-05-16
VJC910 - 3 2026-06-18
VJC8893 - 3 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 VJC273 - Jul 14, 11:40 UTCJul 14, 11:50 UTC10m
2026-07-14 VJC7079 - Jul 14, 08:50 UTCJul 14, 10:25 UTC1h 35m
2026-07-14 VJC7078 - Jul 14, 06:05 UTCJul 14, 06:30 UTC25m
2026-07-14 VJC272 - Jul 14, 04:50 UTCJul 14, 05:05 UTC15m
2026-07-13 VJC1806 - Jul 13, 09:00 UTCJul 13, 22:35 UTC13h 35m
2026-07-12 VJC1805 - Jul 12, 21:50 UTCJul 13, 21:45 UTC23h 55m
2026-07-12 VJC896 - Jul 12, 20:05 UTCJul 13, 15:50 UTC19h 45m
2026-07-12 VJC896 - Jul 12, 19:05 UTCJul 13, 15:50 UTC20h 45m
2026-07-11 VJC895 - Jul 11, 21:50 UTCJul 12, 17:30 UTC19h 40m
2026-07-11 VJC895 - Jul 11, 20:45 UTCJul 12, 17:30 UTC20h 45m
2026-07-11 VJC884 - Jul 11, 19:25 UTCJul 11, 19:45 UTC20m
2026-07-11 VJC883 - Jul 11, 17:45 UTCJul 11, 18:00 UTC15m
2026-07-11 VJC883 - Jul 11, 07:10 UTCJul 11, 16:40 UTC9h 30m
2026-07-11 VJC855 - Jul 11, 05:35 UTCJul 11, 05:50 UTC15m
2026-07-10 VJC1802 - Jul 10, 21:05 UTCJul 11, 00:00 UTC2h 55m
2026-07-10 VJC1802 - Jul 10, 20:15 UTCJul 10, 20:30 UTC15m
2026-07-10 VJC1801 - Jul 10, 09:35 UTCJul 10, 18:50 UTC9h 15m
2026-07-09 VJC979 - Jul 9, 19:10 UTCJul 10, 07:55 UTC12h 45m
2026-07-09 VJC978 TPE → ICN Jul 9, 07:05 UTCJul 9, 17:55 UTC10h 50m
2026-07-08 VJC844 TPE → TPE Jul 8, 11:45 UTCJul 9, 05:25 UTC17h 40m
2026-07-08 VJC869 PUS → TPE Jul 8, 00:20 UTCJul 8, 10:05 UTC9h 45m
2026-07-07 VJC868 - Jul 7, 22:35 UTCJul 7, 22:50 UTC15m
2026-07-07 VJC863 - Jul 7, 03:20 UTCJul 7, 21:30 UTC18h 10m
2026-07-06 VJC862 SGN → ICN Jul 6, 21:55 UTCJul 7, 00:50 UTC2h 55m
2026-07-06 VJC273 - Jul 6, 11:00 UTCJul 6, 11:10 UTC10m
2026-07-06 VJC7079 - Jul 6, 09:05 UTCJul 6, 10:00 UTC55m
2026-07-06 VJC7078 - Jul 6, 05:45 UTCJul 6, 06:05 UTC20m
2026-07-06 VJC272 - Jul 6, 04:15 UTCJul 6, 04:30 UTC15m
2026-07-05 VJC853 - Jul 5, 08:05 UTCJul 5, 20:25 UTC12h 20m
2026-07-05 VJC852 - Jul 5, 06:15 UTCJul 5, 07:05 UTC50m
2026-07-04 VJC249 - Jul 4, 15:15 UTCJul 4, 15:25 UTC10m
2026-07-04 VJC829 - Jul 4, 02:05 UTCJul 4, 05:05 UTC3h 0m
2026-07-03 VJC828 - Jul 3, 08:10 UTCJul 3, 23:20 UTC15h 10m
2026-07-02 VJC800 - Jul 2, 10:05 UTCJul 2, 20:40 UTC10h 35m
2026-07-02 VJC807 - Jul 2, 08:00 UTCJul 2, 08:45 UTC45m
2026-07-01 VJC725 - Jul 1, 00:55 UTCJul 1, 01:25 UTC30m
2026-06-30 VJC724 - Jun 30, 23:30 UTCJul 1, 00:00 UTC30m
2026-06-30 VJC725 - Jun 30, 01:19 UTCJun 30, 01:45 UTC26m
2026-06-29 VJC724 - Jun 29, 23:54 UTCJun 30, 00:09 UTC15m
2026-06-29 VJC8893 - Jun 29, 14:09 UTCJun 29, 14:25 UTC15m
2026-06-29 VJC8891 - Jun 29, 08:09 UTCJun 29, 08:19 UTC10m
2026-06-28 VJC8893 - Jun 28, 14:14 UTCJun 28, 14:25 UTC10m
2026-06-28 VJC725 HPH → DAD Jun 28, 00:59 UTCJun 28, 01:19 UTC20m
2026-06-27 VJC724 DAD → HPH Jun 27, 23:39 UTCJun 28, 00:00 UTC20m
2026-06-27 VJC8891 - Jun 27, 08:05 UTCJun 27, 08:20 UTC15m
2026-06-26 VJC8893 - Jun 26, 14:15 UTCJun 26, 14:25 UTC10m
2026-06-26 VJC8891 - Jun 26, 08:05 UTCJun 26, 08:15 UTC10m
2026-06-25 VJC3909 - Jun 25, 20:09 UTCJun 25, 20:19 UTC10m
2026-06-25 VJC3908 - Jun 25, 17:44 UTCJun 25, 18:15 UTC30m
2026-06-25 VJC281 HPH → SGN Jun 25, 12:10 UTCJun 25, 12:35 UTC25m

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 6h 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 VJC883, VJC828, VJC7078, VJC884, VJC868.