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sensors Mode-S transponder

8881B6

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A514 · AIRBUS A-320neo

Hex
8881B6
Octal
42100666
Decimal
8,946,102
Country
VN
Tail
VN-A514
Type
A20N
No current signal · last broadcast 8h ago
Flights observed
177
Distinct callsigns
20
Country
VN
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 8881B6.

Country allocation

The ICAO 24-bit address 8881B6 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
HVN7561 - 23 2026-07-12
HVN187 - 23 2026-07-10
HVN7627 - 22 2026-07-12
HVN188 Vietnam Airlines 19 2026-07-10
HVN7626 - 17 2026-07-09
HVN7560 - 11 2026-07-12
HVN1641 - 8 2026-07-13
HVN7191 - 5 2026-07-10
HVN178 Vietnam Airlines 5 2026-07-13
HVN1623 - 5 2026-07-13
HVN177 - 4 2026-07-13
HVN1622 - 4 2026-07-11
HVN1549 Vietnam Airlines 4 2026-07-11
HVN1640 - 3 2026-07-13
HVN7190 - 2 2026-06-27
HVN7175 - 2 2026-07-13
HVN7650 Vietnam Airlines 1 2026-06-12
HVN7624 Vietnam Airlines 1 2026-05-31
HVN7195 Vietnam Airlines 1 2026-06-16
HVN7181 Vietnam Airlines 1 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 HVN7175 - Jul 13, 14:30 UTCJul 13, 14:40 UTC10m
2026-07-13 HVN178 DAD → HAN Jul 13, 12:55 UTCJul 13, 13:10 UTC15m
2026-07-13 HVN177 - Jul 13, 09:55 UTCJul 13, 10:20 UTC25m
2026-07-13 HVN1623 - Jul 13, 04:35 UTCJul 13, 07:45 UTC3h 10m
2026-07-13 HVN1640 - Jul 13, 03:05 UTCJul 13, 03:20 UTC15m
2026-07-13 HVN1641 - Jul 13, 00:35 UTCJul 13, 00:50 UTC15m
2026-07-12 HVN7176 DAD → HAN Jul 12, 18:01 UTCJul 12, 18:10 UTC10m
2026-07-12 HVN7175 - Jul 12, 15:20 UTCJul 12, 15:35 UTC15m
2026-07-12 HVN7098 - Jul 12, 10:20 UTCJul 12, 13:50 UTC3h 30m
2026-07-12 HVN7627 - Jul 12, 05:30 UTCJul 12, 05:40 UTC10m
2026-07-12 HVN7560 - Jul 12, 03:40 UTCJul 12, 04:01 UTC20m
2026-07-12 HVN7561 - Jul 12, 00:01 UTCJul 12, 00:15 UTC15m
2026-07-11 HVN1548 - Jul 11, 16:20 UTCJul 11, 16:30 UTC10m
2026-07-11 HVN1549 HAN → HUI Jul 11, 14:05 UTCJul 11, 14:20 UTC15m
2026-07-11 HVN178 DAD → HAN Jul 11, 12:30 UTCJul 11, 12:50 UTC20m
2026-07-11 HVN177 - Jul 11, 09:40 UTCJul 11, 10:00 UTC20m
2026-07-11 HVN1622 - Jul 11, 08:01 UTCJul 11, 08:10 UTC10m
2026-07-11 HVN1623 - Jul 11, 04:55 UTCJul 11, 05:15 UTC20m
2026-07-11 HVN1640 - Jul 11, 03:05 UTCJul 11, 03:15 UTC10m
2026-07-11 HVN1641 - Jul 11, 00:30 UTCJul 11, 00:45 UTC15m
2026-07-10 7190 - Jul 10, 17:40 UTCJul 10, 17:50 UTC10m
2026-07-10 HVN7191 - Jul 10, 15:10 UTCJul 10, 15:25 UTC15m
2026-07-10 HVN188 DAD → HAN Jul 10, 13:40 UTCJul 10, 14:05 UTC25m
2026-07-10 HVN187 - Jul 10, 11:05 UTCJul 10, 11:20 UTC15m
2026-07-10 HVN7627 - Jul 10, 05:35 UTCJul 10, 05:50 UTC15m
2026-07-10 HVN7560 - Jul 10, 03:55 UTCJul 10, 04:05 UTC10m
2026-07-09 HVN7561 - Jul 9, 23:55 UTCJul 10, 00:10 UTC15m
2026-07-09 HVN187 - Jul 9, 12:05 UTCJul 9, 12:15 UTC10m
2026-07-09 HVN7626 - Jul 9, 09:00 UTCJul 9, 09:10 UTC10m
2026-07-08 HVN187 - Jul 8, 11:00 UTCJul 8, 11:20 UTC20m
2026-07-08 HVN7626 - Jul 8, 08:45 UTCJul 8, 09:20 UTC35m
2026-07-08 HVN7627 - Jul 8, 05:40 UTCJul 8, 05:55 UTC15m
2026-07-08 HVN7561 - Jul 8, 00:25 UTCJul 8, 04:25 UTC4h 0m
2026-07-07 HVN188 DAD → HAN Jul 7, 13:10 UTCJul 7, 13:40 UTC30m
2026-07-07 HVN187 - Jul 7, 10:45 UTCJul 7, 11:00 UTC15m
2026-07-07 HVN7626 - Jul 7, 08:35 UTCJul 7, 08:50 UTC15m
2026-07-07 HVN7627 - Jul 7, 05:10 UTCJul 7, 05:25 UTC15m
2026-07-07 HVN7560 - Jul 7, 03:40 UTCJul 7, 03:50 UTC10m
2026-07-07 HVN7561 - Jul 7, 00:05 UTCJul 7, 00:20 UTC15m
2026-07-06 HVN7180 - Jul 6, 17:50 UTCJul 6, 18:00 UTC10m
2026-07-06 HVN7181 HAN → DAD Jul 6, 15:30 UTCJul 6, 15:45 UTC15m
2026-07-06 HVN188 DAD → HAN Jul 6, 10:55 UTCJul 6, 13:55 UTC3h 0m
2026-07-06 HVN7626 - Jul 6, 08:40 UTCJul 6, 09:00 UTC20m
2026-07-06 HVN7627 - Jul 6, 05:45 UTCJul 6, 06:00 UTC15m
2026-07-06 HVN7561 - Jul 6, 00:20 UTCJul 6, 04:20 UTC4h 0m
2026-07-05 HVN188 DAD → HAN Jul 5, 13:45 UTCJul 5, 14:00 UTC15m
2026-07-05 HVN187 - Jul 5, 11:20 UTCJul 5, 11:35 UTC15m
2026-07-05 HVN7626 - Jul 5, 08:35 UTCJul 5, 08:55 UTC20m
2026-07-05 HVN7627 - Jul 5, 05:25 UTCJul 5, 05:45 UTC20m
2026-07-05 HVN7560 - Jul 5, 00:05 UTCJul 5, 04:05 UTC4h 0m

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-A514 page for operator, model, and routing details .

Mode-S 8881B6 frequently asked

What is Mode-S code 8881B6?
8881B6 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A514.
Where is Mode-S 8881B6 registered?
Mode-S code 8881B6 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881B6 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881B6, octal 42100666, decimal 8,946,102.
What flights does 8881B6 operate?
Mode-S 8881B6 has broadcast 20 distinct callsigns, including HVN7561, HVN187, HVN7627, HVN188, HVN7626.