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sensors Mode-S transponder

8881AA

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A542 · AIRBUS A-321

Hex
8881AA
Octal
42100652
Decimal
8,946,090
Country
VN
Tail
VN-A542
Type
A321
No current signal · last broadcast Jul 26, 17:10 UTC
Flights observed
226
Distinct callsigns
20
Country
VN
Last broadcast
Jul 26, 17:10 UTC

Last known position

Most recent position reported by Mode-S 8881AA.

Country allocation

The ICAO 24-bit address 8881AA 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
VJC1802 - 6 2026-07-08
VJC1801 - 6 2026-07-08
VJC982 - 5 2026-07-16
VJC963 - 4 2026-07-19
VJC886 - 4 2026-07-05
VJC885 - 4 2026-07-05
VJC447 - 4 2026-07-15
VJC998 - 3 2026-07-20
VJC997 VietJet Air 3 2026-07-20
VJC981 - 3 2026-07-16
VJC916 VietJet Air 3 2026-06-12
VJC914 - 3 2026-07-18
VJC879 - 3 2026-06-18
VJC878 - 3 2026-06-18
VJC521 VietJet Air 3 2026-07-25
VJC1785 - 3 2026-07-23
VJC1774 VietJet Air 3 2026-07-19
VJC962 - 2 2026-07-18
VJC915 VietJet Air 2 2026-06-12
VJC913 - 2 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VJC875 ICN → DAD Jul 26, 14:15 UTCJul 26, 17:10 UTC2h 55m
2026-07-26 VJC874 DAD → ICN Jul 26, 10:10 UTCJul 26, 13:00 UTC2h 50m
2026-07-26 VJC721 HPH → DAD Jul 26, 04:50 UTCJul 26, 05:05 UTC15m
2026-07-26 VJC720 DAD → HPH Jul 26, 03:40 UTCJul 26, 03:50 UTC10m
2026-07-25 VJC529 HAN → DAD Jul 25, 16:55 UTCJul 25, 17:10 UTC15m
2026-07-25 VJC518 - Jul 25, 15:15 UTCJul 25, 15:25 UTC10m
2026-07-25 VJC521 HAN → DAD Jul 25, 12:45 UTCJul 25, 12:55 UTC10m
2026-07-25 VJC512 DAD → HAN Jul 25, 11:15 UTCJul 25, 11:30 UTC15m
2026-07-25 VJC511 HAN → DAD Jul 25, 08:45 UTCJul 25, 09:00 UTC15m
2026-07-25 - - Jul 25, 07:05 UTCJul 25, 07:15 UTC10m
2026-07-24 VJC521 HAN → DAD Jul 24, 13:25 UTCJul 24, 13:35 UTC10m
2026-07-24 VJC512 DAD → HAN Jul 24, 11:20 UTCJul 24, 11:30 UTC10m
2026-07-24 VJC511 HAN → DAD Jul 24, 08:35 UTCJul 24, 08:45 UTC10m
2026-07-23 VJC491 HAN → BMV Jul 23, 23:30 UTCJul 23, 23:45 UTC15m
2026-07-23 VJC1785 - Jul 23, 13:30 UTCJul 23, 17:25 UTC3h 55m
2026-07-23 VJC568 HUI → HAN Jul 23, 12:00 UTCJul 23, 12:10 UTC10m
2026-07-23 VJC567 HAN → HUI Jul 23, 09:45 UTCJul 23, 10:05 UTC20m
2026-07-23 VJC464 VCA → HAN Jul 23, 07:55 UTCJul 23, 08:20 UTC25m
2026-07-23 VJC463 HAN → VCA Jul 23, 03:50 UTCJul 23, 04:00 UTC10m
2026-07-22 VJC431 HAN → UIH Jul 22, 23:30 UTCJul 23, 02:40 UTC3h 10m
2026-07-22 VJC1785 - Jul 22, 13:20 UTCJul 22, 13:35 UTC15m
2026-07-22 VJC420 TBB → HAN Jul 22, 11:50 UTCJul 22, 12:05 UTC15m
2026-07-22 VJC425 - Jul 22, 03:55 UTCJul 22, 04:10 UTC15m
2026-07-21 VJC531 - Jul 21, 23:45 UTCJul 22, 02:40 UTC2h 55m
2026-07-21 VJC160 - Jul 21, 16:50 UTCJul 21, 17:05 UTC15m
2026-07-21 VJC145 - Jul 21, 09:05 UTCJul 21, 09:20 UTC15m
2026-07-21 VJC136 SGN → HAN Jul 21, 07:20 UTCJul 21, 07:35 UTC15m
2026-07-20 VJC121 HAN → SGN Jul 20, 23:15 UTCJul 20, 23:30 UTC15m
2026-07-20 VJC998 - Jul 20, 14:00 UTCJul 20, 14:10 UTC10m
2026-07-20 VJC998 - Jul 20, 06:15 UTCJul 20, 12:00 UTC5h 45m
2026-07-20 VJC997 HAN → DPS Jul 20, 03:50 UTCJul 20, 04:05 UTC15m
2026-07-20 VJC122 - Jul 20, 01:35 UTCJul 20, 01:45 UTC10m
2026-07-19 VJC1127 - Jul 19, 16:10 UTCJul 19, 16:25 UTC15m
2026-07-19 VJC1452 - Jul 19, 14:20 UTCJul 19, 14:35 UTC15m
2026-07-19 VJC1451 HAN → PQC Jul 19, 10:10 UTCJul 19, 10:25 UTC15m
2026-07-19 VJC1774 CXR → HAN Jul 19, 03:15 UTCJul 19, 08:00 UTC4h 45m
2026-07-19 VJC963 - Jul 19, 01:05 UTCJul 19, 01:15 UTC10m
2026-07-18 VJC963 - Jul 18, 21:35 UTCJul 18, 22:00 UTC25m
2026-07-18 VJC962 - Jul 18, 19:40 UTCJul 18, 20:25 UTC45m
2026-07-18 VJC914 - Jul 18, 12:55 UTCJul 18, 13:10 UTC15m
2026-07-18 VJC913 - Jul 18, 09:35 UTCJul 18, 09:50 UTC15m
2026-07-18 VJC510 - Jul 18, 07:50 UTCJul 18, 08:00 UTC10m
2026-07-18 VJC507 - Jul 18, 05:20 UTCJul 18, 05:30 UTC10m
2026-07-18 VJC524 - Jul 18, 03:55 UTCJul 18, 04:05 UTC10m
2026-07-18 VJC503 - Jul 18, 01:05 UTCJul 18, 01:20 UTC15m
2026-07-17 VJC465 - Jul 17, 10:44 UTCJul 17, 11:00 UTC15m
2026-07-17 VJC772 - Jul 17, 09:15 UTCJul 17, 09:25 UTC10m
2026-07-17 VJC775 - Jul 17, 05:20 UTCJul 17, 05:35 UTC15m
2026-07-16 VJC981 - Jul 16, 23:29 UTCJul 16, 23:49 UTC20m
2026-07-16 VJC982 - Jul 16, 21:40 UTCJul 16, 22:00 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-A542 page for operator, model, and routing details .

Mode-S 8881AA frequently asked

What is Mode-S code 8881AA?
8881AA is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A542.
Where is Mode-S 8881AA registered?
Mode-S code 8881AA is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881AA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881AA, octal 42100652, decimal 8,946,090.
What flights does 8881AA operate?
Mode-S 8881AA has broadcast 20 distinct callsigns, including VJC1802, VJC1801, VJC982, VJC963, VJC886.