Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

88821A

ICAO 24-bit transponder address · allocated to Vietnam

Hex
88821A
Octal
42101032
Decimal
8,946,202
Country
VN
No current signal · last broadcast 4h ago
Flights observed
115
Distinct callsigns
16
Country
VN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 88821A.

Country allocation

The ICAO 24-bit address 88821A 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 16 distinct

Callsign Airline Flights Last seen
VAG131 Vega 35 2026-06-06
VAG137 Vega 22 2026-06-05
VAG136 Vega 15 2026-06-05
VAG130 Vega 14 2026-06-06
VAG791 Vega 4 2026-06-05
VAG639 Vega 4 2026-06-05
VAG635 Vega 4 2026-06-02
VAG787 Vega 3 2026-06-04
VAG780 Vega 3 2026-05-31
VAG672 Vega 3 2026-04-23
VAG751 Vega 2 2026-05-29
VAG794 Vega 1 2026-05-29
VAG750 Vega 1 2026-05-29
VAG658 Vega 1 2026-05-28
VAG550 Vega 1 2026-04-22
VAG1995 - 1 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-06 VAG130 BKK → SGN Jun 6, 07:40 UTCJun 6, 12:04 UTC4h 25m
2026-06-06 VAG131 SGN → BKK Jun 6, 02:00 UTCJun 6, 06:20 UTC4h 20m
2026-06-05 VAG791 HAN → SGN Jun 5, 14:50 UTCJun 6, 00:40 UTC9h 50m
2026-06-05 VAG639 HAN → DAD Jun 5, 10:15 UTCJun 5, 13:30 UTC3h 15m
2026-06-05 VAG136 BKK → HAN Jun 5, 07:20 UTCJun 5, 08:55 UTC1h 35m
2026-06-05 VAG137 HAN → BKK Jun 5, 04:15 UTCJun 5, 05:40 UTC1h 25m
2026-06-04 VAG787 HAN → SGN Jun 4, 13:20 UTCJun 4, 13:50 UTC30m
2026-06-04 VAG130 BKK → SGN Jun 4, 08:00 UTCJun 4, 12:00 UTC4h 0m
2026-06-03 VAG131 SGN → BKK Jun 3, 15:25 UTCJun 4, 06:40 UTC15h 15m
2026-06-03 VAG639 HAN → DAD Jun 3, 10:45 UTCJun 3, 14:15 UTC3h 30m
2026-06-03 VAG136 BKK → HAN Jun 3, 07:30 UTCJun 3, 08:55 UTC1h 25m
2026-06-03 VAG137 HAN → BKK Jun 3, 04:20 UTCJun 3, 05:50 UTC1h 30m
2026-06-02 VAG635 HAN → DAD Jun 2, 23:35 UTCJun 3, 02:40 UTC3h 5m
2026-06-02 VAG130 BKK → SGN Jun 2, 08:00 UTCJun 2, 20:30 UTC12h 30m
2026-06-02 VAG131 SGN → BKK Jun 2, 02:05 UTCJun 2, 06:30 UTC4h 25m
2026-06-01 VAG791 HAN → SGN Jun 1, 14:25 UTCJun 2, 00:50 UTC10h 25m
2026-06-01 VAG639 HAN → DAD Jun 1, 10:15 UTCJun 1, 13:15 UTC3h 0m
2026-06-01 VAG136 BKK → HAN Jun 1, 07:15 UTCJun 1, 08:45 UTC1h 30m
2026-06-01 VAG137 HAN → BKK Jun 1, 04:10 UTCJun 1, 05:40 UTC1h 30m
2026-05-31 VAG635 HAN → DAD May 31, 23:40 UTCJun 1, 02:25 UTC2h 45m
2026-05-31 VAG787 HAN → SGN May 31, 13:25 UTCMay 31, 17:30 UTC4h 5m
2026-05-31 VAG780 SGN → HAN May 31, 08:25 UTCMay 31, 12:05 UTC3h 40m
2026-05-30 VAG791 HAN → SGN May 30, 14:40 UTCMay 31, 00:30 UTC9h 50m
2026-05-30 VAG639 HAN → DAD May 30, 10:15 UTCMay 30, 13:25 UTC3h 10m
2026-05-30 VAG136 BKK → HAN May 30, 07:25 UTCMay 30, 08:45 UTC1h 20m
2026-05-30 VAG137 HAN → BKK May 30, 04:10 UTCMay 30, 05:35 UTC1h 25m
2026-05-29 VAG635 HAN → DAD May 29, 23:30 UTCMay 30, 02:20 UTC2h 50m
2026-05-29 VAG794 SGN → HAN May 29, 13:20 UTCMay 29, 17:55 UTC4h 35m
2026-05-29 VAG780 SGN → HAN May 29, 11:45 UTCMay 29, 12:05 UTC20m
2026-05-29 VAG130 BKK → SGN May 29, 08:00 UTCMay 29, 08:15 UTC15m
2026-05-29 VAG131 SGN → BKK May 29, 06:15 UTCMay 29, 06:40 UTC25m
2026-05-29 VAG751 HAN → SGN May 29, 02:00 UTCMay 29, 02:10 UTC10m
2026-05-29 VAG750 SGN → HAN May 29, 00:15 UTCMay 29, 00:30 UTC15m
2026-05-28 VAG791 HAN → SGN May 28, 14:45 UTCMay 28, 15:05 UTC20m
2026-05-28 VAG658 DAD → HAN May 28, 10:20 UTCMay 28, 13:30 UTC3h 10m
2026-05-28 VAG136 BKK → HAN May 28, 07:20 UTCMay 28, 08:45 UTC1h 25m
2026-05-28 VAG137 HAN → BKK May 28, 04:15 UTCMay 28, 05:45 UTC1h 30m
2026-05-27 VAG635 HAN → DAD May 27, 23:45 UTCMay 28, 02:40 UTC2h 55m
2026-05-27 VAG787 HAN → SGN May 27, 13:20 UTCMay 27, 17:45 UTC4h 25m
2026-05-27 VAG130 BKK → SGN May 27, 07:35 UTCMay 27, 11:55 UTC4h 20m
2026-05-27 VAG131 SGN → BKK May 27, 05:35 UTCMay 27, 06:09 UTC35m
2026-05-26 VAG131 SGN → BKK May 26, 07:59 UTCMay 27, 06:09 UTC22h 10m
2026-05-26 VAG131 SGN → BKK May 26, 05:45 UTCMay 26, 06:39 UTC55m
2026-05-25 VAG131 SGN → BKK May 25, 07:50 UTCMay 26, 06:29 UTC22h 39m
2026-05-25 VAG131 SGN → BKK May 25, 05:40 UTCMay 25, 06:20 UTC40m
2026-05-24 VAG136 BKK → HAN May 24, 07:30 UTCMay 25, 06:20 UTC22h 50m
2026-05-24 VAG137 HAN → BKK May 24, 04:45 UTCMay 24, 05:40 UTC55m
2026-05-23 VAG137 HAN → BKK May 23, 07:55 UTCMay 24, 05:40 UTC21h 45m
2026-05-23 VAG131 SGN → BKK May 23, 05:40 UTCMay 23, 06:30 UTC50m
2026-05-21 VAG136 BKK → HAN May 21, 09:00 UTCMay 21, 09:20 UTC20m

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.

Mode-S 88821A frequently asked

What is Mode-S code 88821A?
88821A is an ICAO 24-bit transponder address. Allocated to Vietnam.
Where is Mode-S 88821A registered?
Mode-S code 88821A is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88821A broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88821A, octal 42101032, decimal 8,946,202.
What flights does 88821A operate?
Mode-S 88821A has broadcast 16 distinct callsigns, including VAG131, VAG137, VAG136, VAG130, VAG791.