Apparatus

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sensors Mode-S transponder

8881A1

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A596 · AIRBUS A-320neo

Hex
8881A1
Octal
42100641
Decimal
8,946,081
Country
VN
Tail
VN-A596
Type
A20N
No current signal · last broadcast 5h ago
Flights observed
193
Distinct callsigns
20
Country
VN
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 8881A1.

Country allocation

The ICAO 24-bit address 8881A1 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
BAV101 - 17 2026-07-16
BAV273 - 15 2026-07-12
BAV802 - 14 2026-07-15
BAV1415 - 13 2026-07-11
BAV135 - 12 2026-07-08
BAV1215 - 12 2026-07-18
BAV136 - 10 2026-06-29
BAV1214 - 10 2026-07-17
BAV1416 - 9 2026-07-15
BAV103 Bay Aviation Ltd 9 2026-06-25
BAV801 - 7 2026-07-03
BAV1414 - 7 2026-07-16
BAV201 Bay Aviation Ltd 6 2026-06-29
BAV147 Bay Aviation Ltd 5 2026-06-30
BAV1413 - 4 2026-07-13
BAV104 - 4 2026-07-03
BAV271 - 3 2026-07-11
BAV141 - 3 2026-06-26
BAV282 - 2 2026-07-13
BAV281 - 2 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 BAV1215 - Jul 18, 09:50 UTCJul 18, 10:10 UTC20m
2026-07-18 BAV242 SGN → HAN Jul 18, 08:05 UTCJul 18, 08:25 UTC20m
2026-07-18 BAV211 - Jul 18, 03:30 UTCJul 18, 03:45 UTC15m
2026-07-17 BAV1417 - Jul 17, 22:10 UTCJul 18, 02:05 UTC3h 55m
2026-07-17 BAV149 - Jul 17, 14:55 UTCJul 17, 15:10 UTC15m
2026-07-17 BAV1214 - Jul 17, 10:15 UTCJul 17, 13:45 UTC3h 30m
2026-07-17 - - Jul 17, 03:14 UTCJul 17, 03:25 UTC10m
2026-07-16 BAV281 - Jul 16, 18:50 UTCJul 17, 01:20 UTC6h 30m
2026-07-16 BAV251 - Jul 16, 12:40 UTCJul 16, 12:55 UTC15m
2026-07-16 BAV1215 - Jul 16, 07:55 UTCJul 16, 11:10 UTC3h 15m
2026-07-16 BAV101 - Jul 16, 03:35 UTCJul 16, 03:55 UTC20m
2026-07-16 BAV1414 - Jul 16, 02:00 UTCJul 16, 02:20 UTC20m
2026-07-15 BAV1417 - Jul 15, 22:15 UTCJul 15, 22:35 UTC20m
2026-07-15 BAV1416 - Jul 15, 19:40 UTCJul 15, 19:50 UTC10m
2026-07-15 1415 - Jul 15, 15:55 UTCJul 15, 16:10 UTC15m
2026-07-15 BAV1214 - Jul 15, 13:10 UTCJul 15, 13:25 UTC15m
2026-07-15 BAV1215 - Jul 15, 09:55 UTCJul 15, 10:10 UTC15m
2026-07-15 BAV802 - Jul 15, 03:25 UTCJul 15, 03:45 UTC20m
2026-07-15 BAV202 - Jul 15, 01:25 UTCJul 15, 01:40 UTC15m
2026-07-14 BAV281 - Jul 14, 14:35 UTCJul 14, 14:45 UTC10m
2026-07-14 BAV1215 - Jul 14, 09:50 UTCJul 14, 13:00 UTC3h 10m
2026-07-14 BAV211 - Jul 14, 03:45 UTCJul 14, 08:35 UTC4h 50m
2026-07-13 BAV1414 - Jul 13, 22:20 UTCJul 14, 02:15 UTC3h 55m
2026-07-13 BAV1217 - Jul 13, 12:40 UTCJul 13, 15:50 UTC3h 10m
2026-07-13 BAV1214 - Jul 13, 11:00 UTCJul 13, 11:15 UTC15m
2026-07-13 BAV1215 - Jul 13, 08:05 UTCJul 13, 08:20 UTC15m
2026-07-13 BAV1414 - Jul 13, 05:45 UTCJul 13, 05:55 UTC10m
2026-07-13 BAV1413 - Jul 13, 02:10 UTCJul 13, 02:25 UTC15m
2026-07-13 BAV282 - Jul 13, 00:40 UTCJul 13, 00:50 UTC10m
2026-07-12 BAV273 - Jul 12, 14:45 UTCJul 12, 15:05 UTC20m
2026-07-12 BAV1214 - Jul 12, 09:40 UTCJul 12, 13:15 UTC3h 35m
2026-07-12 BAV802 - Jul 12, 03:45 UTCJul 12, 07:10 UTC3h 25m
2026-07-12 - - Jul 12, 01:30 UTCJul 12, 01:40 UTC10m
2026-07-11 BAV101 - Jul 11, 22:45 UTCJul 11, 23:00 UTC15m
2026-07-11 BAV280 - Jul 11, 16:00 UTCJul 11, 16:10 UTC10m
2026-07-11 BAV271 - Jul 11, 11:25 UTCJul 11, 11:40 UTC15m
2026-07-11 BAV1415 - Jul 11, 06:25 UTCJul 11, 10:05 UTC3h 40m
2026-07-11 BAV1414 - Jul 11, 04:25 UTCJul 11, 04:35 UTC10m
2026-07-11 BAV1413 - Jul 11, 00:50 UTCJul 11, 01:05 UTC15m
2026-07-10 BAV273 - Jul 10, 15:05 UTCJul 10, 15:20 UTC15m
2026-07-10 BAV1215 - Jul 10, 10:10 UTCJul 10, 13:35 UTC3h 25m
2026-07-09 BAV101 - Jul 9, 23:00 UTCJul 9, 23:15 UTC15m
2026-07-09 BAV271 - Jul 9, 12:25 UTCJul 9, 12:40 UTC15m
2026-07-09 BAV1416 - Jul 9, 09:55 UTCJul 9, 10:35 UTC40m
2026-07-09 BAV1415 - Jul 9, 06:15 UTCJul 9, 06:25 UTC10m
2026-07-09 BAV1413 - Jul 9, 01:00 UTCJul 9, 01:10 UTC10m
2026-07-08 BAV138 - Jul 8, 18:35 UTCJul 8, 18:50 UTC15m
2026-07-08 BAV135 - Jul 8, 16:25 UTCJul 8, 16:50 UTC25m
2026-07-04 BAV1416 - Jul 4, 06:50 UTCJul 4, 11:00 UTC4h 10m
2026-07-04 BAV1414 - Jul 4, 01:20 UTCJul 4, 05:30 UTC4h 10m

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-A596 page for operator, model, and routing details .

Mode-S 8881A1 frequently asked

What is Mode-S code 8881A1?
8881A1 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A596.
Where is Mode-S 8881A1 registered?
Mode-S code 8881A1 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881A1 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881A1, octal 42100641, decimal 8,946,081.
What flights does 8881A1 operate?
Mode-S 8881A1 has broadcast 20 distinct callsigns, including BAV101, BAV273, BAV802, BAV1415, BAV135.