Apparatus

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sensors Mode-S transponder

8880AB

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A399 · AIRBUS A-321

Hex
8880AB
Octal
42100253
Decimal
8,945,835
Country
VN
Tail
VN-A399
Type
A321
No current signal · last broadcast 2h ago
Flights observed
231
Distinct callsigns
20
Country
VN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 8880AB.

Country allocation

The ICAO 24-bit address 8880AB 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
HVN610 - 6 2026-06-25
HVN586 - 5 2026-07-10
HVN920 Vietnam Airlines 4 2026-06-04
HVN681 Vietnam Airlines 4 2026-06-14
HVN679 - 4 2026-06-20
HVN678 - 4 2026-06-20
HVN619 - 4 2026-07-11
HVN618 - 4 2026-07-11
HVN611 - 4 2026-06-25
HVN607 - 4 2026-07-06
HVN606 - 4 2026-07-07
HVN579 Vietnam Airlines 4 2026-04-29
HVN680 Vietnam Airlines 3 2026-06-14
HVN661 - 3 2026-07-11
HVN647 - 3 2026-07-11
HVN643 Vietnam Airlines 3 2026-06-09
HVN616 Vietnam Airlines 3 2026-06-25
HVN615 - 3 2026-07-12
HVN608 Vietnam Airlines 3 2026-07-16
HVN601 - 3 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 HVN7591 - Jul 17, 22:25 UTCJul 17, 22:35 UTC10m
2026-07-17 HVN270 - Jul 17, 17:35 UTCJul 17, 17:44 UTC10m
2026-07-17 HVN502 - Jul 17, 05:25 UTCJul 17, 05:45 UTC20m
2026-07-16 HVN608 BKK → SGN Jul 16, 15:00 UTCJul 16, 15:10 UTC10m
2026-07-16 HVN609 - Jul 16, 12:25 UTCJul 16, 13:10 UTC45m
2026-07-15 HVN608 BKK → SGN Jul 15, 14:10 UTCJul 15, 14:20 UTC10m
2026-07-15 HVN609 - Jul 15, 12:25 UTCJul 15, 12:50 UTC25m
2026-07-14 HVN1715 - Jul 14, 23:25 UTCJul 14, 23:35 UTC10m
2026-07-14 HVN7174 - Jul 14, 16:40 UTCJul 14, 16:50 UTC10m
2026-07-14 HVN199 HAN → DAD Jul 14, 13:50 UTCJul 14, 14:05 UTC15m
2026-07-14 HVN7223 - Jul 14, 07:00 UTCJul 14, 07:15 UTC15m
2026-07-14 HVN1237 - Jul 14, 00:45 UTCJul 14, 01:00 UTC15m
2026-07-13 HVN167 - Jul 13, 04:25 UTCJul 13, 04:40 UTC15m
2026-07-12 HVN1621 - Jul 12, 23:10 UTCJul 12, 23:25 UTC15m
2026-07-12 HVN614 - Jul 12, 09:05 UTCJul 12, 09:20 UTC15m
2026-07-12 HVN615 - Jul 12, 07:20 UTCJul 12, 07:35 UTC15m
2026-07-12 HVN615 - Jul 12, 06:10 UTCJul 12, 06:20 UTC10m
2026-07-12 HVN1590 - Jul 12, 03:55 UTCJul 12, 04:15 UTC20m
2026-07-12 HVN1591 - Jul 12, 02:05 UTCJul 12, 02:15 UTC10m
2026-07-11 HVN646 - Jul 11, 21:35 UTCJul 11, 22:05 UTC30m
2026-07-11 HVN647 - Jul 11, 18:30 UTCJul 11, 20:10 UTC1h 40m
2026-07-11 HVN647 - Jul 11, 17:35 UTCJul 11, 17:45 UTC10m
2026-07-11 HVN618 - Jul 11, 12:55 UTCJul 11, 13:10 UTC15m
2026-07-11 HVN619 - Jul 11, 11:05 UTCJul 11, 11:35 UTC30m
2026-07-11 HVN660 - Jul 11, 05:15 UTCJul 11, 05:40 UTC25m
2026-07-11 HVN661 - Jul 11, 03:10 UTCJul 11, 03:40 UTC30m
2026-07-11 HVN661 - Jul 11, 00:55 UTCJul 11, 01:10 UTC15m
2026-07-10 HVN587D - Jul 10, 13:50 UTCJul 10, 14:45 UTC55m
2026-07-10 HVN586 - Jul 10, 11:40 UTCJul 10, 12:45 UTC1h 5m
2026-07-10 HVN586 - Jul 10, 10:40 UTCJul 10, 10:55 UTC15m
2026-07-10 HVN7571 - Jul 10, 04:20 UTCJul 10, 04:35 UTC15m
2026-07-10 HVN587 - Jul 10, 00:35 UTCJul 10, 01:30 UTC55m
2026-07-09 HVN586 - Jul 9, 13:35 UTCJul 9, 14:40 UTC1h 5m
2026-07-09 HVN586 - Jul 9, 12:40 UTCJul 9, 12:50 UTC10m
2026-07-09 HVN1805 - Jul 9, 10:30 UTCJul 9, 10:40 UTC10m
2026-07-09 HVN1237 - Jul 9, 00:50 UTCJul 9, 01:00 UTC10m
2026-07-08 HVN1562 CXR → HAN Jul 8, 14:30 UTCJul 8, 14:50 UTC20m
2026-07-08 HVN1563 - Jul 8, 10:50 UTCJul 8, 11:05 UTC15m
2026-07-08 HVN170 - Jul 8, 08:40 UTCJul 8, 09:00 UTC20m
2026-07-08 HVN169 - Jul 8, 06:10 UTCJul 8, 06:25 UTC15m
2026-07-08 HVN164 - Jul 8, 01:15 UTCJul 8, 04:20 UTC3h 5m
2026-07-07 HVN224 SGN → HAN Jul 7, 16:35 UTCJul 7, 16:50 UTC15m
2026-07-07 HVN606 - Jul 7, 12:40 UTCJul 7, 13:10 UTC30m
2026-07-06 VN607 - Jul 6, 12:50 UTCJul 7, 11:15 UTC22h 25m
2026-07-06 HVN607 - Jul 6, 10:45 UTCJul 6, 11:25 UTC40m
2026-07-06 VN1177 - Jul 6, 03:30 UTCJul 6, 03:45 UTC15m
2026-07-05 HVN1187 HPH → SGN Jul 5, 13:30 UTCJul 5, 13:45 UTC15m
2026-07-05 HVN1186 SGN → HPH Jul 5, 12:15 UTCJul 5, 12:30 UTC15m
2026-07-04 HVN656 - Jul 4, 13:35 UTCJul 4, 14:05 UTC30m
2026-07-04 HVN657 - Jul 4, 03:45 UTCJul 4, 12:10 UTC8h 25m

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-A399 page for operator, model, and routing details .

Mode-S 8880AB frequently asked

What is Mode-S code 8880AB?
8880AB is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A399.
Where is Mode-S 8880AB registered?
Mode-S code 8880AB is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8880AB broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8880AB, octal 42100253, decimal 8,945,835.
What flights does 8880AB operate?
Mode-S 8880AB has broadcast 20 distinct callsigns, including HVN610, HVN586, HVN920, HVN681, HVN679.