Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

888166

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A618 · AIRBUS A-321neo

Hex
888166
Octal
42100546
Decimal
8,946,022
Country
VN
Tail
VN-A618
Type
A21N
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
232
Distinct callsigns
20
Country
VN
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S 888166.

Country allocation

The ICAO 24-bit address 888166 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
HVN435 - 11 2026-07-15
HVN647 - 9 2026-07-12
HVN434 - 9 2026-07-15
HVN440 Vietnam Airlines 7 2026-07-25
HVN431 Vietnam Airlines 6 2026-07-21
HVN430 Vietnam Airlines 6 2026-07-20
HVN648 Vietnam Airlines 5 2026-05-19
HVN646 - 5 2026-07-12
HVN619 Vietnam Airlines 5 2026-07-24
HVN441 Vietnam Airlines 5 2026-07-25
HVN681 - 4 2026-07-13
HVN649 Vietnam Airlines 4 2026-05-15
HVN626 - 4 2026-07-22
HVN163 Vietnam Airlines 4 2026-06-25
HVN680 Vietnam Airlines 3 2026-07-13
HVN662 - 3 2026-07-04
HVN618 - 3 2026-07-24
HVN611 - 3 2026-07-13
HVN587 - 3 2026-06-26
HVN582 - 3 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 HVN441 ICN → CXR Jul 25, 22:30 UTCJul 26, 21:10 UTC22h 41m
2026-07-25 HVN440 CXR → ICN Jul 25, 08:10 UTCJul 25, 19:10 UTC11h 0m
2026-07-25 HVN605 SGN → BKK Jul 25, 02:10 UTCJul 25, 06:40 UTC4h 30m
2026-07-25 HVN1180 SGN → HPH Jul 25, 00:45 UTCJul 25, 00:55 UTC10m
2026-07-24 HVN267 HAN → SGN Jul 24, 15:50 UTCJul 24, 16:05 UTC15m
2026-07-24 HVN618 - Jul 24, 12:50 UTCJul 24, 13:10 UTC20m
2026-07-24 HVN619 HAN → BKK Jul 24, 10:45 UTCJul 24, 11:15 UTC30m
2026-07-23 HVN1177 HPH → SGN Jul 23, 03:25 UTCJul 23, 03:40 UTC15m
2026-07-23 HVN1176 SGN → HPH Jul 23, 02:05 UTCJul 23, 02:20 UTC15m
2026-07-22 HVN626 - Jul 22, 12:10 UTCJul 22, 12:35 UTC25m
2026-07-22 HVN337 KIX → DAD Jul 22, 00:50 UTCJul 22, 11:20 UTC10h 30m
2026-07-21 HVN336 DAD → KIX Jul 21, 11:20 UTCJul 21, 23:25 UTC12h 5m
2026-07-21 HVN431 ICN → DAD Jul 21, 02:35 UTCJul 21, 09:45 UTC7h 10m
2026-07-20 HVN430 DAD → ICN Jul 20, 01:35 UTCJul 20, 21:00 UTC19h 25m
2026-07-19 HVN316 DAD → NRT Jul 19, 15:55 UTCJul 19, 23:55 UTC8h 0m
2026-07-19 HVN1717 - Jul 19, 11:55 UTCJul 19, 12:05 UTC10m
2026-07-19 HVN431 ICN → DAD Jul 19, 02:35 UTCJul 19, 05:25 UTC2h 50m
2026-07-18 HVN430 - Jul 18, 11:20 UTCJul 18, 21:00 UTC9h 40m
2026-07-18 HVN627 DAD → BKK Jul 18, 09:30 UTCJul 18, 09:40 UTC10m
2026-07-18 HVN431 ICN → DAD Jul 18, 02:40 UTCJul 18, 05:25 UTC2h 46m
2026-07-17 HVN430 - Jul 17, 12:35 UTCJul 17, 21:25 UTC8h 50m
2026-07-17 HVN533 - Jul 17, 10:25 UTCJul 17, 10:35 UTC10m
2026-07-17 HVN532 - Jul 17, 03:34 UTCJul 17, 03:45 UTC10m
2026-07-17 HVN158 - Jul 17, 01:39 UTCJul 17, 01:49 UTC10m
2026-07-16 HVN157 - Jul 16, 23:15 UTCJul 16, 23:25 UTC10m
2026-07-16 HVN1609 - Jul 16, 07:15 UTCJul 16, 07:30 UTC15m
2026-07-16 HVN1608 - Jul 16, 06:00 UTCJul 16, 06:15 UTC15m
2026-07-15 HVN435 - Jul 15, 23:30 UTCJul 16, 02:00 UTC2h 30m
2026-07-15 HVN434 - Jul 15, 21:15 UTCJul 15, 21:45 UTC30m
2026-07-15 HVN434 - Jul 15, 14:05 UTCJul 15, 20:05 UTC6h 0m
2026-07-15 HVN435 - Jul 15, 00:55 UTCJul 15, 12:20 UTC11h 25m
2026-07-14 HVN435 - Jul 14, 23:25 UTCJul 14, 23:40 UTC15m
2026-07-14 HVN434 - Jul 14, 20:50 UTCJul 14, 21:40 UTC50m
2026-07-14 HVN434 - Jul 14, 13:45 UTCJul 14, 19:40 UTC5h 55m
2026-07-14 HVN7565 - Jul 14, 06:55 UTCJul 14, 10:55 UTC4h 0m
2026-07-14 HVN357 - Jul 14, 01:05 UTCJul 14, 03:40 UTC2h 35m
2026-07-13 HVN356 - Jul 13, 21:50 UTCJul 13, 22:10 UTC20m
2026-07-13 HVN356 - Jul 13, 18:40 UTCJul 13, 18:50 UTC10m
2026-07-13 HVN680 KUL → HAN Jul 13, 12:25 UTCJul 13, 12:45 UTC20m
2026-07-13 HVN681 - Jul 13, 10:45 UTCJul 13, 11:10 UTC25m
2026-07-13 HVN681 - Jul 13, 08:30 UTCJul 13, 08:40 UTC10m
2026-07-13 HVN610 - Jul 13, 05:10 UTCJul 13, 05:20 UTC10m
2026-07-13 HVN611 - Jul 13, 03:25 UTCJul 13, 03:40 UTC15m
2026-07-13 HVN611 - Jul 13, 02:15 UTCJul 13, 02:25 UTC10m
2026-07-12 HVN646 - Jul 12, 22:10 UTCJul 12, 22:40 UTC30m
2026-07-12 HVN647 - Jul 12, 18:30 UTCJul 12, 20:20 UTC1h 50m
2026-07-12 HVN647 - Jul 12, 17:35 UTCJul 12, 17:45 UTC10m
2026-07-12 HVN618 - Jul 12, 13:05 UTCJul 12, 13:15 UTC10m
2026-07-12 HVN619 - Jul 12, 11:25 UTCJul 12, 11:45 UTC20m
2026-07-12 HVN619 - Jul 12, 10:05 UTCJul 12, 10:20 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-A618 page for operator, model, and routing details .

Mode-S 888166 frequently asked

What is Mode-S code 888166?
888166 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A618.
Where is Mode-S 888166 registered?
Mode-S code 888166 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 888166 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 888166, octal 42100546, decimal 8,946,022.
What flights does 888166 operate?
Mode-S 888166 has broadcast 20 distinct callsigns, including HVN435, HVN647, HVN434, HVN440, HVN431.