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sensors Mode-S transponder

88816E

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A623 · AIRBUS A-321neo

Hex
88816E
Octal
42100556
Decimal
8,946,030
Country
VN
Tail
VN-A623
Type
A21N
No current signal · last broadcast Jul 26, 14:55 UTC
Flights observed
273
Distinct callsigns
20
Country
VN
Last broadcast
Jul 26, 14:55 UTC

Last known position

Most recent position reported by Mode-S 88816E.

Country allocation

The ICAO 24-bit address 88816E 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
HVN681 Vietnam Airlines 8 2026-07-17
HVN616 - 7 2026-07-22
HVN430 - 7 2026-07-05
HVN680 Vietnam Airlines 6 2026-07-17
HVN661 Vietnam Airlines 6 2026-07-26
HVN660 Vietnam Airlines 6 2026-07-26
HVN648 Vietnam Airlines 6 2026-05-25
HVN647 - 6 2026-07-10
HVN983 - 5 2026-07-14
HVN982 - 5 2026-07-14
HVN617 Vietnam Airlines 5 2026-07-22
HVN502 - 5 2026-07-08
HVN440 Vietnam Airlines 5 2026-05-27
HVN646 - 4 2026-07-10
HVN587 - 4 2026-07-12
HVN357 - 4 2026-07-18
HVN356 - 4 2026-07-17
HVN349 Vietnam Airlines 4 2026-06-14
HVN348 - 4 2026-06-13
HVN172 Vietnam Airlines 4 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 HVN1206 VCA → HAN Jul 26, 14:35 UTCJul 26, 14:55 UTC20m
2026-07-26 HVN1207 HAN → VCA Jul 26, 10:25 UTCJul 26, 10:35 UTC10m
2026-07-26 HVN660 SIN → HAN Jul 26, 08:15 UTCJul 26, 08:40 UTC25m
2026-07-26 HVN660 SIN → HAN Jul 26, 05:25 UTCJul 26, 05:50 UTC25m
2026-07-26 HVN661 HAN → SIN Jul 26, 03:40 UTCJul 26, 04:00 UTC20m
2026-07-26 HVN661 HAN → SIN Jul 26, 01:20 UTCJul 26, 01:35 UTC15m
2026-07-25 HVN1717 HAN → VII Jul 25, 11:15 UTCJul 25, 11:25 UTC10m
2026-07-25 HVN172 DAD → HAN Jul 25, 09:30 UTCJul 25, 09:50 UTC20m
2026-07-25 HVN169 HAN → DAD Jul 25, 07:00 UTCJul 25, 07:20 UTC20m
2026-07-25 HVN579 TPE → HAN Jul 25, 03:15 UTCJul 25, 05:35 UTC2h 20m
2026-07-24 HVN578 HAN → TPE Jul 24, 16:30 UTCJul 24, 17:10 UTC40m
2026-07-24 HVN578 HAN → TPE Jul 24, 11:50 UTCJul 24, 14:45 UTC2h 55m
2026-07-24 HVN578 HAN → TPE Jul 24, 10:55 UTCJul 24, 11:10 UTC15m
2026-07-24 HVN7571 HAN → CXR Jul 24, 04:15 UTCJul 24, 04:30 UTC15m
2026-07-23 HVN1621 HAN → UIH Jul 23, 23:25 UTCJul 23, 23:40 UTC15m
2026-07-23 HVN1717 HAN → VII Jul 23, 10:40 UTCJul 23, 10:55 UTC15m
2026-07-23 HVN170 DAD → HAN Jul 23, 05:10 UTCJul 23, 08:20 UTC3h 10m
2026-07-23 HVN163 HAN → DAD Jul 23, 01:10 UTCJul 23, 03:55 UTC2h 45m
2026-07-22 HVN616 - Jul 22, 17:35 UTCJul 22, 17:50 UTC15m
2026-07-22 HVN616 - Jul 22, 16:20 UTCJul 22, 16:35 UTC15m
2026-07-22 HVN617 HAN → BKK Jul 22, 12:45 UTCJul 22, 14:15 UTC1h 30m
2026-07-22 HVN1590 VDH → HAN Jul 22, 04:00 UTCJul 22, 04:20 UTC20m
2026-07-22 HVN1591 HAN → VDH Jul 22, 02:05 UTCJul 22, 02:20 UTC15m
2026-07-21 HVN7032 - Jul 21, 14:20 UTCJul 21, 14:35 UTC15m
2026-07-21 HVN7033 - Jul 21, 11:45 UTCJul 21, 12:00 UTC15m
2026-07-21 HVN7034 DAD → HAN Jul 21, 06:55 UTCJul 21, 09:45 UTC2h 50m
2026-07-21 HVN7568 - Jul 21, 01:20 UTCJul 21, 05:35 UTC4h 15m
2026-07-20 HVN662 - Jul 20, 10:40 UTCJul 20, 10:50 UTC10m
2026-07-20 HVN662 - Jul 20, 08:10 UTCJul 20, 08:35 UTC25m
2026-07-20 HVN663 HAN → SIN Jul 20, 03:50 UTCJul 20, 06:40 UTC2h 50m
2026-07-19 HVN199 HAN → DAD Jul 19, 15:30 UTCJul 20, 02:05 UTC10h 35m
2026-07-19 HVN1545 - Jul 19, 11:35 UTCJul 19, 14:15 UTC2h 40m
2026-07-19 HVN660 - Jul 19, 08:50 UTCJul 19, 09:15 UTC25m
2026-07-19 HVN660 - Jul 19, 05:35 UTCJul 19, 06:00 UTC25m
2026-07-19 HVN661 - Jul 19, 03:10 UTCJul 19, 03:35 UTC25m
2026-07-19 HVN661 - Jul 19, 00:55 UTCJul 19, 01:05 UTC10m
2026-07-18 HVN1561 - Jul 18, 08:45 UTCJul 18, 12:55 UTC4h 10m
2026-07-18 HVN357 - Jul 18, 04:25 UTCJul 18, 04:40 UTC15m
2026-07-18 HVN357 - Jul 18, 01:15 UTCJul 18, 01:39 UTC25m
2026-07-17 HVN356 - Jul 17, 22:15 UTCJul 17, 22:35 UTC20m
2026-07-17 HVN356 - Jul 17, 18:50 UTCJul 17, 19:00 UTC10m
2026-07-17 HVN680 KUL → HAN Jul 17, 14:39 UTCJul 17, 15:00 UTC20m
2026-07-17 HVN680 KUL → HAN Jul 17, 12:15 UTCJul 17, 12:30 UTC15m
2026-07-17 HVN681 HAN → KUL Jul 17, 10:40 UTCJul 17, 10:55 UTC15m
2026-07-17 HVN681 HAN → KUL Jul 17, 08:15 UTCJul 17, 08:25 UTC10m
2026-07-17 HVN7622 - Jul 17, 06:05 UTCJul 17, 06:15 UTC10m
2026-07-17 HVN7623 - Jul 17, 03:14 UTCJul 17, 03:25 UTC10m
2026-07-17 HVN7152 DAD → HAN Jul 17, 01:25 UTCJul 17, 01:35 UTC10m
2026-07-16 HVN7153 - Jul 16, 22:55 UTCJul 16, 23:05 UTC10m
2026-07-16 HVN680 KUL → HAN Jul 16, 14:50 UTCJul 16, 15:00 UTC10m

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-A623 page for operator, model, and routing details .

Mode-S 88816E frequently asked

What is Mode-S code 88816E?
88816E is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A623.
Where is Mode-S 88816E registered?
Mode-S code 88816E is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88816E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88816E, octal 42100556, decimal 8,946,030.
What flights does 88816E operate?
Mode-S 88816E has broadcast 20 distinct callsigns, including HVN681, HVN616, HVN430, HVN680, HVN661.