Apparatus

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sensors Mode-S transponder

888194

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A508 · AIRBUS A-321neo

Hex
888194
Octal
42100624
Decimal
8,946,068
Country
VN
Tail
VN-A508
Type
A21N
No current signal · last broadcast Jul 26, 22:20 UTC
Flights observed
271
Distinct callsigns
20
Country
VN
Last broadcast
Jul 26, 22:20 UTC

Last known position

Most recent position reported by Mode-S 888194.

Country allocation

The ICAO 24-bit address 888194 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
HVN440 - 14 2026-07-09
HVN435 Vietnam Airlines 12 2026-07-24
HVN441 - 11 2026-07-09
HVN430 Vietnam Airlines 9 2026-07-22
HVN431 - 8 2026-06-28
HVN357 - 8 2026-07-02
HVN434 Vietnam Airlines 6 2026-07-24
HVN617 Vietnam Airlines 5 2026-06-18
HVN616 Vietnam Airlines 5 2026-06-18
HVN356 Vietnam Airlines 5 2026-07-26
HVN983 Vietnam Airlines 4 2026-06-09
HVN977 Vietnam Airlines 4 2026-05-28
HVN976 Vietnam Airlines 4 2026-05-28
HVN681 - 4 2026-07-04
HVN579 - 4 2026-06-30
HVN578 - 4 2026-06-29
HVN1620 Vietnam Airlines 4 2026-07-26
HVN1560 Vietnam Airlines 4 2026-07-26
HVN7569 Vietnam Airlines 3 2026-07-24
HVN7072 Vietnam Airlines 3 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 HVN356 HAN → FUK Jul 26, 18:50 UTCJul 26, 22:20 UTC3h 30m
2026-07-26 HVN7174 SGN → HPH Jul 26, 17:10 UTCJul 26, 17:25 UTC15m
2026-07-26 HVN7175 HAN → DAD Jul 26, 14:30 UTCJul 26, 14:45 UTC15m
2026-07-26 HVN1560 CXR → HAN Jul 26, 12:15 UTCJul 26, 12:35 UTC20m
2026-07-26 HVN1561 HAN → CXR Jul 26, 08:45 UTCJul 26, 09:00 UTC15m
2026-07-26 HVN167 HAN → DAD Jul 26, 04:25 UTCJul 26, 07:10 UTC2h 46m
2026-07-26 HVN1620 UIH → HAN Jul 26, 02:35 UTCJul 26, 02:50 UTC15m
2026-07-25 HVN1621 HAN → UIH Jul 25, 23:25 UTCJul 25, 23:40 UTC15m
2026-07-25 HVN199 HAN → DAD Jul 25, 13:50 UTCJul 25, 16:55 UTC3h 5m
2026-07-25 HVN7072 SGN → HPH Jul 25, 12:00 UTCJul 25, 12:10 UTC10m
2026-07-25 HVN1608 CXR → HPH Jul 25, 06:10 UTCJul 25, 06:20 UTC10m
2026-07-24 HVN435 PUS → CXR Jul 24, 23:25 UTCJul 25, 02:05 UTC2h 40m
2026-07-24 HVN434 CXR → PUS Jul 24, 13:55 UTCJul 24, 21:15 UTC7h 20m
2026-07-24 HVN7065 HUI → SGN Jul 24, 07:00 UTCJul 24, 07:10 UTC10m
2026-07-24 HVN7569 HAN → CXR Jul 24, 01:15 UTCJul 24, 01:40 UTC25m
2026-07-23 HVN7050 DAD → HAN Jul 23, 23:40 UTCJul 23, 23:50 UTC10m
2026-07-23 HVN433 - Jul 23, 15:55 UTCJul 23, 18:45 UTC2h 50m
2026-07-23 HVN432 DAD → ICN Jul 23, 02:35 UTCJul 23, 13:35 UTC11h 0m
2026-07-22 HVN430 DAD → ICN Jul 22, 18:05 UTCJul 22, 20:50 UTC2h 45m
2026-07-22 HVN583 KHH → HAN Jul 22, 05:15 UTCJul 22, 05:25 UTC10m
2026-07-22 HVN582 HAN → KHH Jul 22, 03:10 UTCJul 22, 04:00 UTC50m
2026-07-17 HVN640 - Jul 17, 10:05 UTCJul 17, 10:30 UTC25m
2026-07-15 HVN600 - Jul 15, 05:05 UTCJul 15, 05:20 UTC15m
2026-07-15 HVN601 - Jul 15, 03:25 UTCJul 15, 03:50 UTC25m
2026-07-13 HVN581 - Jul 13, 23:40 UTCJul 14, 11:15 UTC11h 35m
2026-07-12 HVN580 SGN → KHH Jul 12, 23:20 UTCJul 13, 14:40 UTC15h 20m
2026-07-12 HVN630 - Jul 12, 07:20 UTCJul 12, 14:20 UTC7h 0m
2026-07-12 HVN631 - Jul 12, 05:30 UTCJul 12, 06:01 UTC30m
2026-07-11 HVN626 - Jul 11, 11:35 UTCJul 11, 11:50 UTC15m
2026-07-11 HVN627 - Jul 11, 09:35 UTCJul 11, 09:50 UTC15m
2026-07-11 HVN317 - Jul 11, 02:00 UTCJul 11, 06:01 UTC4h 0m
2026-07-10 HVN316 - Jul 10, 14:50 UTCJul 10, 23:25 UTC8h 35m
2026-07-10 HVN7072 SGN → HPH Jul 10, 13:25 UTCJul 10, 13:35 UTC10m
2026-07-09 HVN441 - Jul 9, 22:10 UTCJul 10, 00:35 UTC2h 25m
2026-07-09 HVN440 - Jul 9, 16:35 UTCJul 9, 19:10 UTC2h 35m
2026-07-08 HVN231 - Jul 8, 12:10 UTCJul 8, 12:35 UTC25m
2026-07-08 HVN7052 - Jul 8, 10:30 UTCJul 8, 10:40 UTC10m
2026-07-08 HVN7051 - Jul 8, 07:35 UTCJul 8, 07:55 UTC20m
2026-07-08 HVN7628 - Jul 8, 02:20 UTCJul 8, 06:20 UTC4h 0m
2026-07-07 HVN156 - Jul 7, 23:50 UTCJul 8, 00:05 UTC15m
2026-07-07 HVN433 - Jul 7, 16:00 UTCJul 7, 18:35 UTC2h 35m
2026-07-07 HVN432 - Jul 7, 07:00 UTCJul 7, 13:30 UTC6h 30m
2026-07-07 HVN7569 HAN → CXR Jul 7, 01:15 UTCJul 7, 05:15 UTC4h 0m
2026-07-06 HVN270 - Jul 6, 17:30 UTCJul 6, 17:45 UTC15m
2026-07-06 HVN317 - Jul 6, 01:30 UTCJul 6, 05:00 UTC3h 30m
2026-07-05 HVN316 - Jul 5, 15:40 UTCJul 5, 22:55 UTC7h 15m
2026-07-05 HVN618 - Jul 5, 12:40 UTCJul 5, 13:30 UTC50m
2026-07-05 HVN619 - Jul 5, 09:50 UTCJul 5, 11:15 UTC1h 25m
2026-07-05 HVN172 - Jul 5, 05:20 UTCJul 5, 08:20 UTC3h 0m
2026-07-05 HVN163 - Jul 5, 01:00 UTCJul 5, 03:50 UTC2h 50m

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-A508 page for operator, model, and routing details .

Mode-S 888194 frequently asked

What is Mode-S code 888194?
888194 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A508.
Where is Mode-S 888194 registered?
Mode-S code 888194 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 888194 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 888194, octal 42100624, decimal 8,946,068.
What flights does 888194 operate?
Mode-S 888194 has broadcast 20 distinct callsigns, including HVN440, HVN435, HVN441, HVN430, HVN431.