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sensors Mode-S transponder

8881AC

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A524 · AIRBUS A-321neo

Hex
8881AC
Octal
42100654
Decimal
8,946,092
Country
VN
Tail
VN-A524
Type
A21N
Broadcasting now · callsign VJC969 · 14,750 ft
Flights observed
289
Distinct callsigns
20
Country
VN
Last broadcast
Jul 26, 23:00 UTC

Current position

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

Country allocation

The ICAO 24-bit address 8881AC 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
VJC929 VietJet Air 7 2026-07-22
VJC1802 VietJet Air 6 2026-05-31
VJC978 VietJet Air 5 2026-07-24
VJC933 - 5 2026-06-22
VJC918 - 5 2026-06-24
VJC868 VietJet Air 5 2026-06-16
VJC828 VietJet Air 5 2026-07-19
VJC3908 - 5 2026-06-26
VJC1801 VietJet Air 5 2026-05-31
VJC979 VietJet Air 4 2026-07-24
VJC969 VietJet Air 4 2026-07-23
VJC932 - 4 2026-06-21
VJC910 - 4 2026-07-03
VJC907 - 4 2026-07-03
VJC883 VietJet Air 4 2026-06-07
VJC862 VietJet Air 4 2026-05-18
VJC976 VietJet Air 3 2026-07-25
VJC962 VietJet Air 3 2026-06-24
VJC939 - 3 2026-07-03
VJC938 - 3 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VJC896 DEL → SGN Jul 26, 19:50 UTCJul 26, 23:00 UTC3h 10m
2026-07-25 VJC895 SGN → DEL Jul 25, 23:10 UTCJul 26, 18:40 UTC19h 31m
2026-07-25 VJC895 SGN → DEL Jul 25, 21:30 UTCJul 26, 18:40 UTC21h 11m
2026-07-25 VJC976 PQC → ICN Jul 25, 08:45 UTCJul 25, 20:00 UTC11h 15m
2026-07-24 VJC979 ICN → PQC Jul 24, 20:50 UTCJul 25, 06:45 UTC9h 55m
2026-07-24 VJC978 PQC → ICN Jul 24, 16:35 UTCJul 24, 19:30 UTC2h 55m
2026-07-24 VJC143 HAN → SGN Jul 24, 07:50 UTCJul 24, 08:00 UTC10m
2026-07-24 VJC504 DAD → HAN Jul 24, 00:55 UTCJul 24, 01:05 UTC10m
2026-07-23 VJC527 - Jul 23, 15:00 UTCJul 23, 15:15 UTC15m
2026-07-23 VJC468 - Jul 23, 13:15 UTCJul 23, 13:40 UTC25m
2026-07-23 VJC467 HAN → VCA Jul 23, 08:55 UTCJul 23, 09:05 UTC10m
2026-07-23 VJC440 PQC → HAN Jul 23, 07:25 UTCJul 23, 07:45 UTC20m
2026-07-23 VJC969 PUS → PQC Jul 23, 01:20 UTCJul 23, 02:25 UTC1h 5m
2026-07-22 VJC969 PUS → PQC Jul 22, 23:45 UTCJul 23, 00:00 UTC15m
2026-07-22 VJC968 PQC → PUS Jul 22, 19:15 UTCJul 22, 21:55 UTC2h 40m
2026-07-22 VJC455 HAN → PQC Jul 22, 13:50 UTCJul 22, 14:05 UTC15m
2026-07-22 VJC929 HAN → CGK Jul 22, 04:25 UTCJul 22, 04:35 UTC10m
2026-07-22 VJC929 HAN → CGK Jul 22, 02:00 UTCJul 22, 02:15 UTC15m
2026-07-21 VJC526 - Jul 21, 16:45 UTCJul 21, 17:00 UTC15m
2026-07-21 VJC723 - Jul 21, 13:40 UTCJul 21, 13:55 UTC15m
2026-07-21 VJC722 DAD → HPH Jul 21, 12:35 UTCJul 21, 12:50 UTC15m
2026-07-21 VJC721 HPH → DAD Jul 21, 05:05 UTCJul 21, 05:15 UTC10m
2026-07-21 VJC720 DAD → HPH Jul 21, 04:00 UTCJul 21, 04:10 UTC10m
2026-07-20 VJC829 KIX → SGN Jul 20, 04:40 UTCJul 20, 07:40 UTC3h 0m
2026-07-19 VJC828 SGN → KIX Jul 19, 23:50 UTCJul 20, 03:15 UTC3h 25m
2026-07-19 VJC828 SGN → KIX Jul 19, 05:05 UTCJul 20, 03:15 UTC22h 10m
2026-07-19 VJC828 SGN → KIX Jul 19, 03:30 UTCJul 20, 03:00 UTC23h 30m
2026-07-19 VJC829 KIX → SGN Jul 19, 02:15 UTCJul 20, 00:25 UTC22h 10m
2026-07-18 VJC828 SGN → KIX Jul 18, 05:50 UTCJul 19, 00:25 UTC18h 35m
2026-07-18 VJC130 - Jul 18, 03:55 UTCJul 18, 04:15 UTC20m
2026-07-17 VJC537 - Jul 17, 04:39 UTCJul 17, 04:54 UTC15m
2026-07-16 VJC531 - Jul 16, 23:55 UTCJul 17, 02:45 UTC2h 50m
2026-07-16 VJC784 - Jul 16, 18:15 UTCJul 16, 18:29 UTC15m
2026-07-16 VJC783 - Jul 16, 14:29 UTCJul 16, 14:40 UTC10m
2026-07-16 VJC567 - Jul 16, 10:55 UTCJul 16, 11:05 UTC10m
2026-07-16 VJC515 - Jul 16, 06:25 UTCJul 16, 09:15 UTC2h 50m
2026-07-16 VJC461 - Jul 16, 00:25 UTCJul 16, 00:35 UTC10m
2026-07-15 - - Jul 15, 16:35 UTCJul 15, 16:50 UTC15m
2026-07-15 VJC519 - Jul 15, 14:10 UTCJul 15, 14:20 UTC10m
2026-07-15 VJC468 - Jul 15, 12:25 UTCJul 15, 12:40 UTC15m
2026-07-15 VJC467 - Jul 15, 08:10 UTCJul 15, 08:25 UTC15m
2026-07-15 VJC425 - Jul 15, 04:00 UTCJul 15, 04:20 UTC20m
2026-07-14 VJC1431 HAN → UIH Jul 14, 11:00 UTCJul 14, 11:10 UTC10m
2026-07-14 VJC538 - Jul 14, 08:30 UTCJul 14, 08:50 UTC20m
2026-07-14 VJC537 - Jul 14, 05:35 UTCJul 14, 05:50 UTC15m
2026-07-14 VJC535 - Jul 14, 00:50 UTCJul 14, 04:00 UTC3h 10m
2026-07-13 VJC523 - Jul 13, 14:00 UTCJul 13, 14:10 UTC10m
2026-07-13 VJC442 - Jul 13, 12:25 UTCJul 13, 12:35 UTC10m
2026-07-13 VJC441 - Jul 13, 07:50 UTCJul 13, 08:05 UTC15m
2026-07-13 VJC563 - Jul 13, 02:55 UTCJul 13, 03:10 UTC15m

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-A524 page for operator, model, and routing details .

Mode-S 8881AC frequently asked

What is Mode-S code 8881AC?
8881AC is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A524.
Where is Mode-S 8881AC registered?
Mode-S code 8881AC is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881AC broadcasting right now?
Yes. Mode-S 8881AC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881AC, octal 42100654, decimal 8,946,092.
What flights does 8881AC operate?
Mode-S 8881AC has broadcast 20 distinct callsigns, including VJC929, VJC1802, VJC978, VJC933, VJC918.