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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
Broadcasting now · callsign VJC845 · 32,000 ft
Flights observed
229
Distinct callsigns
20
Country
VN
Last broadcast
2h ago

Current position

8881D9 is currently broadcasting. Map zoomed to live position.

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 - 7 2026-07-08
VJC978 - 7 2026-07-08
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
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
VJC860 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-10 VJC826 - Jul 10, 05:40 UTCJul 10, 05:50 UTC10m
2026-07-10 VJC825 - Jul 10, 04:00 UTCJul 10, 04:15 UTC15m
2026-07-09 VJC159 - Jul 9, 15:55 UTCJul 9, 16:10 UTC15m
2026-07-09 VJC1814 - Jul 9, 08:15 UTCJul 9, 08:30 UTC15m
2026-07-08 VJC979 - Jul 8, 20:15 UTCJul 9, 06:50 UTC10h 35m
2026-07-08 VJC978 - Jul 8, 07:40 UTCJul 8, 19:05 UTC11h 25m
2026-07-08 VJC855 - Jul 8, 05:55 UTCJul 8, 06:10 UTC15m
2026-07-07 VJC273 - Jul 7, 11:20 UTCJul 7, 11:30 UTC10m
2026-07-07 VJC7079 - Jul 7, 09:10 UTCJul 7, 09:55 UTC45m
2026-07-07 VJC7078 - Jul 7, 05:35 UTCJul 7, 05:55 UTC20m
2026-07-07 VJC272 - Jul 7, 04:05 UTCJul 7, 04:15 UTC10m
2026-07-06 VJC861 - Jul 6, 12:25 UTCJul 6, 15:20 UTC2h 55m
2026-07-05 VJC979 ICN → ICN Jul 5, 19:15 UTCJul 6, 11:00 UTC15h 45m
2026-07-05 VJC978 - Jul 5, 13:10 UTCJul 5, 17:50 UTC4h 40m
2026-07-04 VJC843 - Jul 4, 11:35 UTCJul 4, 12:35 UTC1h 0m
2026-07-04 VJC869 PUS → TPE Jul 4, 01:15 UTCJul 4, 10:20 UTC9h 5m
2026-07-03 VJC868 - Jul 3, 23:05 UTCJul 3, 23:25 UTC20m
2026-07-03 VJC868 - Jul 3, 12:05 UTCJul 3, 21:55 UTC9h 50m
2026-07-03 VJC983 - Jul 3, 05:30 UTCJul 3, 10:45 UTC5h 15m
2026-07-02 VJC811 - Jul 2, 08:20 UTCJul 3, 04:15 UTC19h 55m
2026-07-02 VJC848 - Jul 2, 08:00 UTCJul 3, 04:15 UTC20h 15m
2026-07-01 VJC161 HAN → SGN Jul 1, 15:20 UTCJul 2, 08:25 UTC17h 5m

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?
Yes. Mode-S 8881D9 is currently airborne.
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.