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sensors Mode-S transponder

8881F5

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A550 · AIRBUS A-321neo

Hex
8881F5
Octal
42100765
Decimal
8,946,165
Country
VN
Tail
VN-A550
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
173
Distinct callsigns
20
Country
VN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 8881F5.

Country allocation

The ICAO 24-bit address 8881F5 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
VJC161 - 5 2026-07-09
VJC507 VietJet Air 4 2026-06-09
VJC491 - 4 2026-07-07
VJC1504 - 4 2026-07-01
VJC977 VietJet Air 3 2026-04-17
VJC845 VietJet Air 3 2026-04-16
VJC720 VietJet Air 3 2026-06-05
VJC531 - 3 2026-07-06
VJC511 - 3 2026-07-07
VJC503 VietJet Air 3 2026-06-07
VJC1505 - 3 2026-07-01
VJC145 - 3 2026-06-28
VJC127 VietJet Air 3 2026-06-21
VJC120 VietJet Air 3 2026-06-12
VJC976 VietJet Air 2 2026-04-16
VJC884 VietJet Air 2 2026-04-30
VJC883 VietJet Air 2 2026-04-30
VJC721 VietJet Air 2 2026-06-04
VJC540 - 2 2026-07-12
VJC539 - 2 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 VJC167 - Jul 13, 16:35 UTCJul 13, 16:50 UTC15m
2026-07-13 VJC539 - Jul 13, 10:00 UTCJul 13, 10:20 UTC20m
2026-07-13 VJC537 - Jul 13, 04:40 UTCJul 13, 04:55 UTC15m
2026-07-13 VJC536 - Jul 13, 03:15 UTCJul 13, 03:30 UTC15m
2026-07-13 VJC535 - Jul 13, 00:45 UTCJul 13, 01:01 UTC15m
2026-07-12 VJC540 - Jul 12, 16:01 UTCJul 12, 16:15 UTC15m
2026-07-12 VJC539 - Jul 12, 13:10 UTCJul 12, 13:25 UTC15m
2026-07-12 VJC136 - Jul 12, 11:05 UTCJul 12, 11:50 UTC45m
2026-07-12 VJC275 - Jul 12, 06:15 UTCJul 12, 06:30 UTC15m
2026-07-12 VJC274 - Jul 12, 05:15 UTCJul 12, 05:25 UTC10m
2026-07-11 VJC271 - Jul 11, 01:15 UTCJul 11, 01:35 UTC20m
2026-07-11 VJC270 - Jul 11, 00:20 UTCJul 11, 00:30 UTC10m
2026-07-10 VJC283 - Jul 10, 16:20 UTCJul 10, 16:35 UTC15m
2026-07-10 VJC282 - Jul 10, 15:25 UTCJul 10, 15:35 UTC10m
2026-07-09 VJC161 - Jul 9, 14:55 UTCJul 9, 15:05 UTC10m
2026-07-09 VJC467 - Jul 9, 08:10 UTCJul 9, 08:20 UTC10m
2026-07-09 VJC447 - Jul 9, 02:45 UTCJul 9, 02:55 UTC10m
2026-07-08 VJC523 - Jul 8, 14:20 UTCJul 8, 17:20 UTC3h 0m
2026-07-08 VJC540 - Jul 8, 10:05 UTCJul 8, 12:55 UTC2h 50m
2026-07-08 VJC494 - Jul 8, 08:10 UTCJul 8, 08:20 UTC10m
2026-07-08 VJC493 - Jul 8, 04:10 UTCJul 8, 04:25 UTC15m
2026-07-07 VJC491 - Jul 7, 23:25 UTCJul 8, 02:45 UTC3h 20m
2026-07-07 VJC521 - Jul 7, 12:35 UTCJul 7, 15:30 UTC2h 55m
2026-07-07 VJC511 - Jul 7, 08:35 UTCJul 7, 11:30 UTC2h 55m
2026-07-07 VJC538 - Jul 7, 07:00 UTCJul 7, 07:15 UTC15m
2026-07-07 VJC537 - Jul 7, 04:30 UTCJul 7, 04:45 UTC15m
2026-07-07 VJC532 - Jul 7, 02:40 UTCJul 7, 02:50 UTC10m
2026-07-06 VJC531 - Jul 6, 23:50 UTCJul 7, 00:05 UTC15m
2026-07-05 VJC279 - Jul 5, 09:55 UTCJul 5, 10:15 UTC20m
2026-07-05 VJC278 - Jul 5, 08:50 UTCJul 5, 09:05 UTC15m
2026-07-02 VJC253 - Jul 2, 10:05 UTCJul 2, 10:15 UTC10m
2026-07-02 VJC129 - Jul 2, 02:20 UTCJul 2, 02:50 UTC30m
2026-07-01 VJC1505 - Jul 1, 08:25 UTCJul 2, 01:00 UTC16h 35m
2026-07-01 VJC1504 - Jul 1, 06:50 UTCJul 1, 07:15 UTC25m
2026-07-01 VJC241 THD → SGN Jul 1, 01:30 UTCJul 1, 01:40 UTC10m
2026-06-30 VJC285 HPH → SGN Jun 30, 18:35 UTCJun 30, 19:00 UTC25m
2026-06-30 VJC284 SGN → HPH Jun 30, 09:00 UTCJun 30, 15:20 UTC6h 20m
2026-06-30 VJC1504 - Jun 30, 07:40 UTCJun 30, 08:00 UTC20m
2026-06-29 VJ1505 - Jun 29, 08:35 UTCJun 29, 08:54 UTC20m
2026-06-29 VJC426 PXU → HAN Jun 29, 04:00 UTCJun 29, 07:09 UTC3h 10m
2026-06-28 VJC531 HAN → DAD Jun 28, 23:44 UTCJun 29, 02:50 UTC3h 5m
2026-06-28 VJC145 - Jun 28, 08:19 UTCJun 28, 17:10 UTC8h 50m
2026-06-28 VJC425 HAN → PXU Jun 28, 03:59 UTCJun 28, 06:59 UTC3h 0m
2026-06-27 VJC531 HAN → DAD Jun 27, 23:50 UTCJun 28, 02:44 UTC2h 55m
2026-06-27 VJC466 - Jun 27, 10:25 UTCJun 27, 14:54 UTC4h 30m
2026-06-27 VJC243 - Jun 27, 02:45 UTCJun 27, 09:19 UTC6h 35m
2026-06-26 VJC161 HAN → SGN Jun 26, 14:50 UTCJun 26, 15:20 UTC30m
2026-06-26 VJC423 HAN → PXU Jun 26, 09:10 UTCJun 26, 12:19 UTC3h 10m
2026-06-26 VJC566 HUI → HAN Jun 26, 07:30 UTCJun 26, 07:55 UTC25m
2026-06-26 VJC565 HAN → HUI Jun 26, 05:19 UTCJun 26, 05:44 UTC25m

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-A550 page for operator, model, and routing details .

Mode-S 8881F5 frequently asked

What is Mode-S code 8881F5?
8881F5 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A550.
Where is Mode-S 8881F5 registered?
Mode-S code 8881F5 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881F5 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881F5, octal 42100765, decimal 8,946,165.
What flights does 8881F5 operate?
Mode-S 8881F5 has broadcast 20 distinct callsigns, including VJC161, VJC507, VJC491, VJC1504, VJC977.