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sensors Mode-S transponder

8881D9

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A528 · AIRBUS A-321neo

Hex
8881D9
Octal
42100731
Decimal
8,946,137
Country
VN
Tail
VN-A528
Type
A21N
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
251
Distinct callsigns
20
Country
VN
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S 8881D9.

Country allocation

The ICAO 24-bit address 8881D9 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
VJC979 VietJet Air 9 2026-07-26
VJC978 VietJet Air 9 2026-07-26
VJC883 - 7 2026-06-28
VJC3900 - 7 2026-07-14
VJC868 - 6 2026-07-12
VJC855 - 6 2026-07-08
VJC1805 VietJet Air 6 2026-06-08
VJC861 - 5 2026-07-13
VJC7079 - 5 2026-07-17
VJC947 VietJet Air 4 2026-07-22
VJC8893 VietJet Air 4 2026-04-20
VJC884 VietJet Air 4 2026-06-28
VJC854 - 4 2026-06-22
VJC828 - 4 2026-07-10
VJC7078 - 4 2026-07-17
VJC272 - 4 2026-07-17
VJC916 - 3 2026-06-24
VJC915 - 3 2026-06-24
VJC8891 VietJet Air 3 2026-04-19
VJC879 VietJet Air 3 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VJC979 ICN → PQC Jul 26, 20:40 UTCJul 26, 22:15 UTC1h 35m
2026-07-26 VJC978 PQC → ICN Jul 26, 08:20 UTCJul 26, 19:15 UTC10h 55m
2026-07-25 VJC279 HPH → SGN Jul 25, 10:35 UTCJul 25, 10:45 UTC10m
2026-07-25 VJC278 SGN → HPH Jul 25, 09:10 UTCJul 25, 09:35 UTC25m
2026-07-24 VJC837 ICN → CXR Jul 24, 21:40 UTCJul 25, 00:30 UTC2h 50m
2026-07-24 VJC836 CXR → ICN Jul 24, 08:25 UTCJul 24, 19:45 UTC11h 20m
2026-07-23 VJC5324 - Jul 23, 07:10 UTCJul 23, 17:20 UTC10h 10m
2026-07-23 VJC1813 SGN → KUL Jul 23, 05:15 UTCJul 23, 05:30 UTC15m
2026-07-22 VJC159 HAN → SGN Jul 22, 18:30 UTCJul 22, 18:45 UTC15m
2026-07-22 VJC947 KHH → HAN Jul 22, 12:45 UTCJul 22, 13:05 UTC20m
2026-07-22 VJC947 KHH → HAN Jul 22, 11:25 UTCJul 22, 11:45 UTC20m
2026-07-22 VJC946 HAN → KHH Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-22 VJC447 HAN → PQC Jul 22, 02:10 UTCJul 22, 10:25 UTC8h 15m
2026-07-20 VJC168 SGN → HAN Jul 20, 17:55 UTCJul 20, 18:10 UTC15m
2026-07-20 VJC877 HKG → SGN Jul 20, 13:15 UTCJul 20, 13:30 UTC15m
2026-07-20 VJC876 SGN → HKG Jul 20, 11:05 UTCJul 20, 11:25 UTC20m
2026-07-20 VJC826 - Jul 20, 05:50 UTCJul 20, 06:05 UTC15m
2026-07-19 VJC1802 BLR → SGN Jul 19, 18:50 UTCJul 20, 04:40 UTC9h 50m
2026-07-19 VJC1801 SGN → BLR Jul 19, 16:55 UTCJul 19, 17:20 UTC25m
2026-07-19 VJC1801 SGN → BLR Jul 19, 08:05 UTCJul 19, 16:15 UTC8h 10m
2026-07-18 VJC979 - Jul 18, 19:15 UTCJul 19, 06:55 UTC11h 40m
2026-07-18 VJC978 PQC → ICN Jul 18, 06:55 UTCJul 18, 18:00 UTC11h 5m
2026-07-18 VJC844 - Jul 18, 04:05 UTCJul 18, 05:25 UTC1h 20m
2026-07-17 VJC3909 - Jul 17, 19:09 UTCJul 17, 19:25 UTC15m
2026-07-17 VJC3908 - Jul 17, 17:25 UTCJul 17, 17:40 UTC15m
2026-07-17 VJC273 - Jul 17, 11:10 UTCJul 17, 11:25 UTC15m
2026-07-17 VJC7079 - Jul 17, 09:45 UTCJul 17, 10:10 UTC25m
2026-07-17 VJC7078 - Jul 17, 05:39 UTCJul 17, 05:55 UTC15m
2026-07-17 VJC272 - Jul 17, 04:29 UTCJul 17, 04:39 UTC10m
2026-07-16 VJC877 - Jul 16, 13:05 UTCJul 16, 13:25 UTC20m
2026-07-16 VJC876 - Jul 16, 11:05 UTCJul 16, 11:20 UTC15m
2026-07-16 VJC812 - Jul 16, 05:30 UTCJul 16, 05:55 UTC25m
2026-07-16 VJC811 - Jul 16, 04:00 UTCJul 16, 04:20 UTC20m
2026-07-15 VJC121 - Jul 15, 23:35 UTCJul 15, 23:45 UTC10m
2026-07-15 VJC513 - Jul 15, 10:20 UTCJul 15, 10:35 UTC15m
2026-07-15 VJC530 - Jul 15, 08:55 UTCJul 15, 09:10 UTC15m
2026-07-15 VJC970 - Jul 15, 03:55 UTCJul 15, 04:20 UTC25m
2026-07-14 VJC3900 - Jul 14, 09:00 UTCJul 15, 02:35 UTC17h 34m
2026-07-13 VJC861 - Jul 13, 12:50 UTCJul 14, 07:40 UTC18h 50m
2026-07-13 VJC860 - Jul 13, 01:30 UTCJul 13, 11:35 UTC10h 5m
2026-07-13 VJC869 - Jul 13, 00:05 UTCJul 13, 00:20 UTC15m
2026-07-12 VJC868 - Jul 12, 20:35 UTCJul 12, 22:55 UTC2h 20m
2026-07-12 VJC877 - Jul 12, 13:01 UTCJul 12, 13:15 UTC15m
2026-07-12 VJC876 - Jul 12, 10:50 UTCJul 12, 11:05 UTC15m
2026-07-12 VJC823 - Jul 12, 01:25 UTCJul 12, 04:35 UTC3h 10m
2026-07-11 VJC822 - Jul 11, 04:55 UTCJul 11, 23:50 UTC18h 55m
2026-07-11 VJC822 - Jul 11, 02:20 UTCJul 11, 23:50 UTC21h 30m
2026-07-11 VJC822 KIX → NRT Jul 11, 01:50 UTCJul 11, 23:50 UTC22h 0m
2026-07-10 VJC828 - Jul 10, 21:15 UTCJul 11, 00:15 UTC3h 0m
2026-07-10 VJC147 - Jul 10, 12:20 UTCJul 10, 12:30 UTC10m

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-A528 page for operator, model, and routing details .

Mode-S 8881D9 frequently asked

What is Mode-S code 8881D9?
8881D9 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A528.
Where is Mode-S 8881D9 registered?
Mode-S code 8881D9 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881D9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881D9, octal 42100731, decimal 8,946,137.
What flights does 8881D9 operate?
Mode-S 8881D9 has broadcast 20 distinct callsigns, including VJC979, VJC978, VJC883, VJC3900, VJC868.