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sensors Mode-S transponder

8881F1

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A546 · AIRBUS A-321neo

Hex
8881F1
Octal
42100761
Decimal
8,946,161
Country
VN
Tail
VN-A546
Type
A21N
No current signal · last broadcast 21h ago
Flights observed
157
Distinct callsigns
20
Country
VN
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 8881F1.

Country allocation

The ICAO 24-bit address 8881F1 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
VJC275 VietJet Air 6 2026-06-27
VJC274 VietJet Air 6 2026-06-27
VJC8893 VietJet Air 4 2026-05-06
VJC8891 VietJet Air 4 2026-05-06
VJC281 VietJet Air 4 2026-07-20
VJC280 VietJet Air 4 2026-07-20
VJC491 - 3 2026-07-13
VJC253 VietJet Air 3 2026-06-26
VJC167 VietJet Air 3 2026-07-18
VJC163 VietJet Air 3 2026-06-23
VJC1452 - 3 2026-07-07
VJC129 - 3 2026-07-10
VJC989 VietJet Air 2 2026-05-05
VJC861 VietJet Air 2 2026-04-28
VJC860 VietJet Air 2 2026-04-28
VJC855 VietJet Air 2 2026-04-25
VJC854 VietJet Air 2 2026-04-25
VJC783 - 2 2026-07-11
VJC781 - 2 2026-07-15
VJC531 - 2 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 VJC281 HPH → SGN Jul 20, 13:10 UTCJul 20, 13:25 UTC15m
2026-07-20 VJC280 SGN → HPH Jul 20, 12:00 UTCJul 20, 12:20 UTC20m
2026-07-18 VJC167 HAN → SGN Jul 18, 16:35 UTCJul 18, 16:45 UTC10m
2026-07-18 VJC194 SGN → HAN Jul 18, 15:05 UTCJul 18, 15:15 UTC10m
2026-07-18 VJC193 HAN → SGN Jul 18, 10:00 UTCJul 18, 10:10 UTC10m
2026-07-18 VJC135 HAN → SGN Jul 18, 03:40 UTCJul 18, 08:35 UTC4h 55m
2026-07-18 VJC122 - Jul 18, 01:30 UTCJul 18, 01:45 UTC15m
2026-07-17 VJC271 HPH → SGN Jul 17, 01:39 UTCJul 17, 01:55 UTC15m
2026-07-17 VJC270 - Jul 17, 00:10 UTCJul 17, 00:35 UTC25m
2026-07-16 VJC141 - Jul 16, 12:20 UTCJul 16, 12:30 UTC10m
2026-07-16 VJC528 - Jul 16, 10:20 UTCJul 16, 10:35 UTC15m
2026-07-16 VJC525 - Jul 16, 07:30 UTCJul 16, 07:40 UTC10m
2026-07-16 VJC1771 - Jul 16, 00:40 UTCJul 16, 01:00 UTC20m
2026-07-15 VJC781 - Jul 15, 13:25 UTCJul 15, 13:35 UTC10m
2026-07-15 VJC453 - Jul 15, 07:15 UTCJul 15, 11:40 UTC4h 25m
2026-07-15 VJC506 - Jul 15, 05:20 UTCJul 15, 05:35 UTC15m
2026-07-15 VJC505 - Jul 15, 02:40 UTCJul 15, 02:55 UTC15m
2026-07-14 - - Jul 14, 12:45 UTCJul 14, 12:55 UTC10m
2026-07-14 VJC539 - Jul 14, 09:50 UTCJul 14, 10:05 UTC15m
2026-07-14 VJC493 - Jul 14, 04:15 UTCJul 14, 04:30 UTC15m
2026-07-14 VJC492 - Jul 14, 02:35 UTCJul 14, 02:55 UTC20m
2026-07-13 VJC491 - Jul 13, 23:20 UTCJul 13, 23:35 UTC15m
2026-07-13 VJC150 - Jul 13, 15:50 UTCJul 13, 16:00 UTC10m
2026-07-13 VJC191 - Jul 13, 11:05 UTCJul 13, 11:20 UTC15m
2026-07-13 VJC493 - Jul 13, 04:15 UTCJul 13, 04:30 UTC15m
2026-07-13 VJC492 - Jul 13, 02:45 UTCJul 13, 02:55 UTC10m
2026-07-12 VJC491 - Jul 12, 23:15 UTCJul 12, 23:30 UTC15m
2026-07-12 VJC520 - Jul 12, 16:05 UTCJul 12, 16:20 UTC15m
2026-07-12 VJC517 - Jul 12, 13:25 UTCJul 12, 13:40 UTC15m
2026-07-12 VJC774 - Jul 12, 11:50 UTCJul 12, 12:10 UTC20m
2026-07-12 VJC787 - Jul 12, 07:40 UTCJul 12, 07:55 UTC15m
2026-07-12 VJC566 - Jul 12, 06:25 UTCJul 12, 06:35 UTC10m
2026-07-12 VJC565 - Jul 12, 04:10 UTCJul 12, 04:30 UTC20m
2026-07-12 VJC1776 - Jul 12, 02:40 UTCJul 12, 02:50 UTC10m
2026-07-11 VJC1775 - Jul 11, 23:05 UTCJul 11, 23:15 UTC10m
2026-07-11 VJC783 - Jul 11, 13:40 UTCJul 11, 13:50 UTC10m
2026-07-11 VJC441 - Jul 11, 07:45 UTCJul 11, 07:55 UTC10m
2026-07-11 VJC440 - Jul 11, 02:15 UTCJul 11, 06:30 UTC4h 15m
2026-07-10 VJC784 - Jul 10, 18:25 UTCJul 10, 18:35 UTC10m
2026-07-10 VJC783 - Jul 10, 14:55 UTCJul 10, 15:10 UTC15m
2026-07-10 VJC148 - Jul 10, 13:15 UTCJul 10, 13:30 UTC15m
2026-07-10 VJC129 - Jul 10, 02:10 UTCJul 10, 02:20 UTC10m
2026-07-09 VJC155 - Jul 9, 13:35 UTCJul 9, 13:50 UTC15m
2026-07-08 VJC167 - Jul 8, 19:00 UTCJul 8, 19:20 UTC20m
2026-07-08 VJC781 - Jul 8, 12:50 UTCJul 8, 16:50 UTC4h 0m
2026-07-08 VJC456 - Jul 8, 11:10 UTCJul 8, 11:30 UTC20m
2026-07-08 VJC453 - Jul 8, 07:05 UTCJul 8, 07:25 UTC20m
2026-07-08 VJC506 - Jul 8, 05:05 UTCJul 8, 05:55 UTC50m
2026-07-08 VJC505 - Jul 8, 02:35 UTCJul 8, 02:50 UTC15m
2026-07-07 VC504 - Jul 7, 15:00 UTCJul 8, 01:20 UTC10h 20m

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-A546 page for operator, model, and routing details .

Mode-S 8881F1 frequently asked

What is Mode-S code 8881F1?
8881F1 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A546.
Where is Mode-S 8881F1 registered?
Mode-S code 8881F1 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881F1 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881F1, octal 42100761, decimal 8,946,161.
What flights does 8881F1 operate?
Mode-S 8881F1 has broadcast 20 distinct callsigns, including VJC275, VJC274, VJC8893, VJC8891, VJC281.