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sensors Mode-S transponder

8881A7

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A522 · AIRBUS A-321

Hex
8881A7
Octal
42100647
Decimal
8,946,087
Country
VN
Tail
VN-A522
Type
A321
No current signal · last broadcast Jul 26, 13:30 UTC
Flights observed
238
Distinct callsigns
20
Country
VN
Last broadcast
Jul 26, 13:30 UTC

Last known position

Most recent position reported by Mode-S 8881A7.

Country allocation

The ICAO 24-bit address 8881A7 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 VietJet Air 8 2026-06-10
VJC1801 VietJet Air 6 2026-06-10
VJC958 - 5 2026-07-15
VJC982 VietJet Air 4 2026-07-22
VJC961 VietJet Air 4 2026-07-20
VJC861 VietJet Air 4 2026-06-05
VJC859 - 4 2026-07-14
VJC858 - 4 2026-07-14
VJC274 - 4 2026-07-15
VJC981 VietJet Air 3 2026-07-22
VJC960 VietJet Air 3 2026-07-19
VJC959 - 3 2026-07-16
VJC860 VietJet Air 3 2026-06-05
VJC804 VietJet Air 3 2026-06-16
VJC803 VietJet Air 3 2026-06-16
VJC781 - 3 2026-06-29
VJC1773 - 3 2026-07-18
VJC154 VietJet Air 3 2026-06-14
VJC130 - 3 2026-07-13
VJC988 - 2 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VJC146 SGN → HAN Jul 26, 13:05 UTCJul 26, 13:30 UTC25m
2026-07-26 VJC143 HAN → SGN Jul 26, 08:10 UTCJul 26, 08:25 UTC15m
2026-07-26 VJC447 HAN → PQC Jul 26, 02:15 UTCJul 26, 06:40 UTC4h 26m
2026-07-25 VJC1451 HAN → PQC Jul 25, 10:35 UTCJul 25, 10:45 UTC10m
2026-07-25 VJC538 DAD → HAN Jul 25, 09:05 UTCJul 25, 09:15 UTC10m
2026-07-25 VJC537 HAN → DAD Jul 25, 06:30 UTCJul 25, 06:45 UTC15m
2026-07-25 VJC536 DAD → HAN Jul 25, 05:00 UTCJul 25, 05:20 UTC20m
2026-07-24 VJC517 - Jul 24, 11:55 UTCJul 24, 12:10 UTC15m
2026-07-23 VJC515 HAN → DAD Jul 23, 05:45 UTCJul 23, 06:00 UTC15m
2026-07-22 VJC981 PUS → HAN Jul 22, 23:40 UTCJul 23, 00:05 UTC25m
2026-07-22 VJC982 HAN → PUS Jul 22, 22:00 UTCJul 22, 22:20 UTC20m
2026-07-22 VJC982 HAN → PUS Jul 22, 18:40 UTCJul 22, 19:00 UTC20m
2026-07-22 VJC561 HAN → HUI Jul 22, 13:45 UTCJul 22, 14:00 UTC15m
2026-07-22 VJC493 HAN → BMV Jul 22, 04:25 UTCJul 22, 04:40 UTC15m
2026-07-22 VJC492 BMV → HAN Jul 22, 03:00 UTCJul 22, 03:20 UTC20m
2026-07-21 VJC491 HAN → BMV Jul 21, 23:30 UTCJul 21, 23:45 UTC15m
2026-07-21 VJC904 - Jul 21, 12:00 UTCJul 21, 12:25 UTC25m
2026-07-21 VJC903 HAN → BKK Jul 21, 10:15 UTCJul 21, 10:45 UTC30m
2026-07-21 VJC903 HAN → BKK Jul 21, 09:15 UTCJul 21, 09:25 UTC10m
2026-07-21 VJC538 DAD → HAN Jul 21, 07:20 UTCJul 21, 07:30 UTC10m
2026-07-21 VJC537 - Jul 21, 04:45 UTCJul 21, 05:00 UTC15m
2026-07-21 VJC536 DAD → HAN Jul 21, 03:30 UTCJul 21, 03:40 UTC10m
2026-07-21 VJC535 - Jul 21, 01:00 UTCJul 21, 01:15 UTC15m
2026-07-20 VJC947 - Jul 20, 13:00 UTCJul 20, 13:15 UTC15m
2026-07-20 VJC947 - Jul 20, 11:15 UTCJul 20, 12:15 UTC1h 0m
2026-07-20 VJC946 - Jul 20, 09:15 UTCJul 20, 10:20 UTC1h 5m
2026-07-20 VJC946 - Jul 20, 08:15 UTCJul 20, 08:25 UTC10m
2026-07-20 VJC961 ICN → HAN Jul 20, 06:10 UTCJul 20, 06:25 UTC15m
2026-07-20 VJC961 ICN → HAN Jul 20, 02:45 UTCJul 20, 03:30 UTC45m
2026-07-19 VJC960 HAN → ICN Jul 19, 22:00 UTCJul 19, 22:40 UTC40m
2026-07-19 VJC465 HAN → VCA Jul 19, 11:10 UTCJul 19, 11:25 UTC15m
2026-07-19 VJC426 PXU → HAN Jul 19, 08:55 UTCJul 19, 09:20 UTC25m
2026-07-19 VJC425 - Jul 19, 05:50 UTCJul 19, 06:05 UTC15m
2026-07-19 VJC532 - Jul 19, 03:10 UTCJul 19, 03:20 UTC10m
2026-07-19 VJC531 - Jul 19, 00:20 UTCJul 19, 00:30 UTC10m
2026-07-18 VJC518 - Jul 18, 15:05 UTCJul 18, 15:15 UTC10m
2026-07-18 VJC521 - Jul 18, 12:35 UTCJul 18, 12:50 UTC15m
2026-07-18 VJC511 - Jul 18, 08:30 UTCJul 18, 08:40 UTC10m
2026-07-18 VJC1773 - Jul 18, 03:20 UTCJul 18, 03:35 UTC15m
2026-07-17 VJC963 - Jul 17, 22:05 UTCJul 17, 22:49 UTC45m
2026-07-17 VJC962 - Jul 17, 20:00 UTCJul 17, 20:50 UTC50m
2026-07-17 VJC914 - Jul 17, 13:29 UTCJul 17, 13:50 UTC20m
2026-07-17 VJC913 - Jul 17, 10:00 UTCJul 17, 10:10 UTC10m
2026-07-17 VJC510 - Jul 17, 07:30 UTCJul 17, 07:40 UTC10m
2026-07-17 VJC507 - Jul 17, 04:59 UTCJul 17, 05:10 UTC10m
2026-07-17 VJC503 - Jul 17, 01:00 UTCJul 17, 01:09 UTC10m
2026-07-16 VJC495 - Jul 16, 11:05 UTCJul 16, 11:15 UTC10m
2026-07-16 VJC451 - Jul 16, 05:10 UTCJul 16, 05:20 UTC10m
2026-07-16 VJC959 - Jul 16, 00:20 UTCJul 16, 00:45 UTC25m
2026-07-15 VJC958 - Jul 15, 22:40 UTCJul 15, 22:55 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-A522 page for operator, model, and routing details .

Mode-S 8881A7 frequently asked

What is Mode-S code 8881A7?
8881A7 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A522.
Where is Mode-S 8881A7 registered?
Mode-S code 8881A7 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881A7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881A7, octal 42100647, decimal 8,946,087.
What flights does 8881A7 operate?
Mode-S 8881A7 has broadcast 20 distinct callsigns, including VJC1802, VJC1801, VJC958, VJC982, VJC961.