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sensors Mode-S transponder

8880B4

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A605 · AIRBUS A-321

Hex
8880B4
Octal
42100264
Decimal
8,945,844
Country
VN
Tail
VN-A605
Type
A321
No current signal · last broadcast Jul 25, 22:30 UTC
Flights observed
343
Distinct callsigns
20
Country
VN
Last broadcast
Jul 25, 22:30 UTC

Last known position

Most recent position reported by Mode-S 8880B4.

Country allocation

The ICAO 24-bit address 8880B4 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
HVN635 - 27 2026-07-22
HVN634 Vietnam Airlines 18 2026-07-22
HVN512 Vietnam Airlines 10 2026-07-22
HVN513 Vietnam Airlines 9 2026-07-24
HVN660 Vietnam Airlines 7 2026-07-25
HVN619 - 6 2026-07-06
HVN607 - 6 2026-06-16
HVN1715 Vietnam Airlines 6 2026-07-24
HVN680 Vietnam Airlines 5 2026-06-25
HVN661 Vietnam Airlines 5 2026-07-25
HVN630 Vietnam Airlines 5 2026-06-06
HVN609 Vietnam Airlines 5 2026-06-17
HVN606 - 5 2026-06-16
HVN1716 Vietnam Airlines 5 2026-07-24
HVN681 - 4 2026-06-25
HVN679 Vietnam Airlines 4 2026-04-21
HVN678 Vietnam Airlines 4 2026-04-21
HVN631 Vietnam Airlines 4 2026-06-06
HVN618 - 4 2026-07-06
HVN614 - 4 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 HVN205 HAN → SGN Jul 25, 22:10 UTCJul 25, 22:30 UTC20m
2026-07-25 HVN1562 CXR → HAN Jul 25, 10:55 UTCJul 25, 14:55 UTC4h 0m
2026-07-25 HVN660 SIN → HAN Jul 25, 09:15 UTCJul 25, 09:30 UTC15m
2026-07-25 HVN660 SIN → HAN Jul 25, 06:45 UTCJul 25, 07:10 UTC25m
2026-07-25 HVN661 HAN → SIN Jul 25, 01:45 UTCJul 25, 04:40 UTC2h 55m
2026-07-24 HVN922 HAN → TPE Jul 24, 17:35 UTCJul 24, 18:10 UTC35m
2026-07-24 HVN923 - Jul 24, 13:50 UTCJul 24, 14:10 UTC20m
2026-07-24 HVN513 PEK → HAN Jul 24, 07:45 UTCJul 24, 08:20 UTC35m
2026-07-24 HVN1716 VII → HAN Jul 24, 01:45 UTCJul 24, 01:55 UTC10m
2026-07-24 HVN1715 HAN → VII Jul 24, 00:15 UTCJul 24, 00:25 UTC10m
2026-07-23 HVN180 DAD → HAN Jul 23, 12:40 UTCJul 23, 12:55 UTC15m
2026-07-23 HVN179 HAN → DAD Jul 23, 09:25 UTCJul 23, 09:50 UTC25m
2026-07-23 HVN167 HAN → DAD Jul 23, 04:20 UTCJul 23, 07:05 UTC2h 45m
2026-07-23 HVN160 DAD → HAN Jul 23, 02:45 UTCJul 23, 02:55 UTC10m
2026-07-23 HVN159 HAN → DAD Jul 23, 00:15 UTCJul 23, 00:30 UTC15m
2026-07-22 HVN634 CGK → HAN Jul 22, 18:45 UTCJul 22, 20:15 UTC1h 30m
2026-07-22 HVN635 - Jul 22, 17:20 UTCJul 22, 17:30 UTC10m
2026-07-22 HVN635 - Jul 22, 13:35 UTCJul 22, 13:50 UTC15m
2026-07-22 HVN513 - Jul 22, 11:20 UTCJul 22, 11:35 UTC15m
2026-07-22 HVN512 HAN → PEK Jul 22, 03:35 UTCJul 22, 04:00 UTC25m
2026-07-21 HVN157 HAN → DAD Jul 21, 23:15 UTCJul 22, 02:10 UTC2h 55m
2026-07-21 HVN616 - Jul 21, 15:20 UTCJul 21, 15:45 UTC25m
2026-07-21 HVN617 HAN → BKK Jul 21, 12:15 UTCJul 21, 13:45 UTC1h 30m
2026-07-21 HVN174 - Jul 21, 10:30 UTCJul 21, 10:45 UTC15m
2026-07-21 HVN173 HAN → DAD Jul 21, 07:55 UTCJul 21, 08:10 UTC15m
2026-07-21 HVN1236 PQC → HAN Jul 21, 01:00 UTCJul 21, 05:40 UTC4h 40m
2026-07-20 HVN1236 PQC → HAN Jul 20, 00:40 UTCJul 20, 05:05 UTC4h 25m
2026-07-19 HVN7173 HPH → SGN Jul 19, 13:25 UTCJul 19, 16:10 UTC2h 45m
2026-07-19 HVN532 - Jul 19, 03:35 UTCJul 19, 03:55 UTC20m
2026-07-19 HVN1716 VII → HAN Jul 19, 01:55 UTCJul 19, 02:15 UTC20m
2026-07-19 HVN1715 HAN → VII Jul 19, 00:25 UTCJul 19, 00:35 UTC10m
2026-07-18 HVN7198 - Jul 18, 17:25 UTCJul 18, 17:35 UTC10m
2026-07-18 HVN7063 - Jul 18, 13:05 UTCJul 18, 13:20 UTC15m
2026-07-18 HVN533 - Jul 18, 10:55 UTCJul 18, 11:05 UTC10m
2026-07-18 HVN532 - Jul 18, 03:30 UTCJul 18, 03:50 UTC20m
2026-07-18 HVN1715 - Jul 18, 00:10 UTCJul 18, 00:19 UTC10m
2026-07-17 HVN179 - Jul 17, 09:50 UTCJul 17, 13:20 UTC3h 30m
2026-07-17 HVN171 - Jul 17, 05:30 UTCJul 17, 08:25 UTC2h 55m
2026-07-17 HVN1603 - Jul 17, 00:40 UTCJul 17, 00:50 UTC10m
2026-07-16 HVN836 - Jul 16, 12:25 UTCJul 16, 12:34 UTC10m
2026-07-16 HVN837 - Jul 16, 08:45 UTCJul 16, 09:00 UTC15m
2026-07-16 HVN610 - Jul 16, 05:25 UTCJul 16, 05:55 UTC30m
2026-07-16 HVN611 - Jul 16, 03:35 UTCJul 16, 03:55 UTC20m
2026-07-16 HVN611 - Jul 16, 02:25 UTCJul 16, 02:40 UTC15m
2026-07-15 HVN634 - Jul 15, 19:20 UTCJul 15, 23:15 UTC3h 55m
2026-07-15 HVN635 - Jul 15, 17:30 UTCJul 15, 17:50 UTC20m
2026-07-15 HVN635 - Jul 15, 13:50 UTCJul 15, 14:05 UTC15m
2026-07-15 HVN513 - Jul 15, 08:25 UTCJul 15, 08:40 UTC15m
2026-07-15 HVN512 - Jul 15, 06:30 UTCJul 15, 06:40 UTC10m
2026-07-15 HVN512 - Jul 15, 03:30 UTCJul 15, 03:40 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-A605 page for operator, model, and routing details .

Mode-S 8880B4 frequently asked

What is Mode-S code 8880B4?
8880B4 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A605.
Where is Mode-S 8880B4 registered?
Mode-S code 8880B4 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8880B4 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8880B4, octal 42100264, decimal 8,945,844.
What flights does 8880B4 operate?
Mode-S 8880B4 has broadcast 20 distinct callsigns, including HVN635, HVN634, HVN512, HVN513, HVN660.