Apparatus

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sensors Mode-S transponder

88817D

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A536 · AIRBUS A-321neo

Hex
88817D
Octal
42100575
Decimal
8,946,045
Country
VN
Tail
VN-A536
Type
A21N
Broadcasting now · callsign VJC1801 · 34,025 ft
Flights observed
215
Distinct callsigns
20
Country
VN
Last broadcast
Jul 26, 04:55 UTC

Current position

88817D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 88817D 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
VJC943 - 9 2026-07-05
VJC942 - 9 2026-07-05
VJC862 - 8 2026-07-16
VJC828 VietJet Air 8 2026-07-25
VJC939 - 7 2026-06-26
VJC829 VietJet Air 6 2026-07-26
VJC1806 - 6 2026-07-11
VJC938 - 5 2026-06-25
VJC863 - 5 2026-07-17
VJC932 - 4 2026-07-04
VJC884 - 4 2026-07-12
VJC1804 - 4 2026-07-18
VJC946 - 3 2026-07-04
VJC935 - 3 2026-07-06
VJC934 - 3 2026-07-06
VJC933 - 3 2026-07-05
VJC929 - 3 2026-07-02
VJC928 - 3 2026-07-02
VJC921 - 3 2026-06-22
VJC919 VietJet Air 3 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VJC829 KIX → SGN Jul 26, 02:00 UTCJul 26, 04:55 UTC2h 55m
2026-07-25 VJC828 SGN → KIX Jul 25, 21:00 UTCJul 26, 00:10 UTC3h 10m
2026-07-25 VJC828 SGN → KIX Jul 25, 03:25 UTCJul 26, 00:10 UTC20h 45m
2026-07-25 VJC829 KIX → SGN Jul 25, 02:15 UTCJul 26, 00:10 UTC21h 55m
2026-07-24 VJC828 SGN → KIX Jul 24, 12:35 UTCJul 25, 00:45 UTC12h 10m
2026-07-24 VJC860 SGN → ICN Jul 24, 01:30 UTCJul 24, 10:40 UTC9h 10m
2026-07-24 VJC869 PUS → SGN Jul 24, 00:00 UTCJul 24, 00:10 UTC10m
2026-07-23 VJC868 SGN → PUS Jul 23, 22:20 UTCJul 23, 22:35 UTC15m
2026-07-23 VJC843 TPE → SGN Jul 23, 11:35 UTCJul 23, 21:10 UTC9h 35m
2026-07-22 VJC1802 BLR → SGN Jul 22, 19:50 UTCJul 23, 10:15 UTC14h 25m
2026-07-22 VJC1802 BLR → SGN Jul 22, 18:55 UTCJul 22, 19:10 UTC15m
2026-07-22 VJC1801 SGN → BLR Jul 22, 14:00 UTCJul 22, 17:35 UTC3h 35m
2026-07-21 VJC163 - Jul 21, 15:00 UTCJul 21, 15:10 UTC10m
2026-07-21 VJC154 SGN → HAN Jul 21, 13:30 UTCJul 21, 13:45 UTC15m
2026-07-21 VJC829 KIX → SGN Jul 21, 01:00 UTCJul 21, 04:00 UTC3h 0m
2026-07-20 VJC828 SGN → KIX Jul 20, 09:10 UTCJul 20, 23:30 UTC14h 20m
2026-07-19 VJC979 - Jul 19, 20:40 UTCJul 20, 07:55 UTC11h 15m
2026-07-19 VJC978 PQC → ICN Jul 19, 08:25 UTCJul 19, 19:15 UTC10h 50m
2026-07-18 VJC978 PQC → ICN Jul 18, 21:20 UTCJul 19, 19:15 UTC21h 55m
2026-07-18 VJC1804 - Jul 18, 19:35 UTCJul 19, 19:15 UTC23h 40m
2026-07-18 VJC1804 - Jul 18, 14:45 UTCJul 19, 08:55 UTC18h 10m
2026-07-18 VJC1804 - Jul 18, 03:45 UTCJul 18, 22:25 UTC18h 40m
2026-07-18 VJC1804 - Jul 18, 01:34 UTCJul 18, 22:25 UTC20h 51m
2026-07-17 VJC828 SGN → KIX Jul 17, 13:10 UTCJul 17, 23:50 UTC10h 40m
2026-07-17 VJC863 - Jul 17, 03:10 UTCJul 17, 06:00 UTC2h 50m
2026-07-16 VJC862 - Jul 16, 22:15 UTCJul 17, 01:09 UTC2h 55m
2026-07-16 VJC862 - Jul 16, 03:20 UTCJul 17, 01:09 UTC21h 50m
2026-07-16 VJC862 - Jul 16, 01:55 UTCJul 17, 01:09 UTC23h 15m
2026-07-15 VJC828 - Jul 15, 20:55 UTCJul 16, 00:05 UTC3h 10m
2026-07-15 VJC1505 - Jul 15, 09:45 UTCJul 15, 09:55 UTC10m
2026-07-14 VJC843 - Jul 14, 11:50 UTCJul 14, 12:55 UTC1h 5m
2026-07-14 VJC842 - Jul 14, 08:50 UTCJul 14, 10:20 UTC1h 30m
2026-07-13 VJC273 - Jul 13, 11:00 UTCJul 13, 11:15 UTC15m
2026-07-13 VJC7079 - Jul 13, 09:25 UTCJul 13, 09:45 UTC20m
2026-07-13 VJC7078 - Jul 13, 05:35 UTCJul 13, 06:05 UTC30m
2026-07-13 VJC272 - Jul 13, 04:10 UTCJul 13, 04:20 UTC10m
2026-07-12 VJC884 - Jul 12, 20:25 UTCJul 12, 23:00 UTC2h 35m
2026-07-12 VJC884 - Jul 12, 19:01 UTCJul 12, 19:15 UTC15m
2026-07-12 VJC883 - Jul 12, 17:30 UTCJul 12, 17:40 UTC10m
2026-07-11 VJC1806 - Jul 11, 21:20 UTCJul 12, 16:20 UTC19h 0m
2026-07-11 VJC1806 - Jul 11, 20:50 UTCJul 12, 16:20 UTC19h 30m
2026-07-11 VJC1806 - Jul 11, 15:20 UTCJul 12, 15:15 UTC23h 55m
2026-07-11 VJC1806 - Jul 11, 05:10 UTCJul 11, 23:40 UTC18h 30m
2026-07-10 VJC862 - Jul 10, 22:05 UTCJul 11, 00:45 UTC2h 40m
2026-07-10 VJC273 - Jul 10, 11:20 UTCJul 10, 11:35 UTC15m
2026-07-10 VJC7079 - Jul 10, 09:40 UTCJul 10, 10:05 UTC25m
2026-07-10 VJC7078 - Jul 10, 05:50 UTCJul 10, 06:20 UTC30m
2026-07-10 VJC272 - Jul 10, 04:35 UTCJul 10, 04:45 UTC10m
2026-07-09 VJC7079 - Jul 9, 09:50 UTCJul 9, 10:05 UTC15m
2026-07-09 VJC7078 - Jul 9, 05:50 UTCJul 9, 06:20 UTC30m

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-A536 page for operator, model, and routing details .

Mode-S 88817D frequently asked

What is Mode-S code 88817D?
88817D is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A536.
Where is Mode-S 88817D registered?
Mode-S code 88817D is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88817D broadcasting right now?
Yes. Mode-S 88817D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88817D, octal 42100575, decimal 8,946,045.
What flights does 88817D operate?
Mode-S 88817D has broadcast 20 distinct callsigns, including VJC943, VJC942, VJC862, VJC828, VJC939.