Apparatus

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sensors Mode-S transponder

6831E7

ICAO 24-bit transponder address · allocated to Kazakhstan

Currently assigned to UP-B5704 · BOEING 757-200

Hex
6831E7
Octal
32030747
Decimal
6,828,519
Country
KZ
Tail
UP-B5704
Type
B752
No current signal · last broadcast 19d ago
Flights observed
121
Distinct callsigns
20
Country
KZ
Last broadcast
19d ago

Last known position

Most recent position reported by Mode-S 6831E7.

Country allocation

The ICAO 24-bit address 6831E7 falls within the block assigned to Kazakhstan (KZ) by ICAO Annex 10, Volume III. Every aircraft registered in Kazakhstan 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
VSV5210 - 34 2026-07-21
VSV5211 - 24 2026-07-21
VSV5291 Scat Air 18 2026-07-25
VSV5292 - 11 2026-07-25
VSV5212 - 7 2026-07-02
VSV5296 - 4 2026-06-26
VSV5271 - 3 2026-06-22
VSV5217 - 3 2026-06-17
VSV5213 Scat Air 3 2026-05-29
VSV5317 - 2 2026-05-15
VSV5295 - 2 2026-07-24
VSV711D - 1 2026-05-11
VSV5351 Scat Air 1 2026-05-20
VSV5345 - 1 2026-07-15
VSV5282 - 1 2026-05-11
VSV5281 Scat Air 1 2026-05-11
VSV5280 - 1 2026-07-09
VSV5272 - 1 2026-06-08
VSV5218 - 1 2026-05-27
VSV3464 Scat Air 1 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 VSV5292 - Jul 25, 09:50 UTCJul 26, 05:15 UTC19h 25m
2026-07-25 VSV5291 ALA → ALA Jul 25, 04:25 UTCJul 25, 07:25 UTC3h 0m
2026-07-24 VSV5291 ALA → ALA Jul 24, 06:35 UTCJul 25, 05:10 UTC22h 35m
2026-07-24 VSV5295 - Jul 24, 00:40 UTCJul 24, 06:50 UTC6h 10m
2026-07-23 VSV5292 - Jul 23, 09:50 UTCJul 24, 06:50 UTC21h 0m
2026-07-23 VSV5292 - Jul 23, 08:45 UTCJul 24, 06:50 UTC22h 5m
2026-07-23 VSV5291 ALA → ALA Jul 23, 03:15 UTCJul 23, 06:05 UTC2h 50m
2026-07-21 VSV5211 - Jul 21, 13:15 UTCJul 22, 01:30 UTC12h 15m
2026-07-21 VSV5210 - Jul 21, 09:20 UTCJul 21, 11:40 UTC2h 20m
2026-07-20 VSV5292 - Jul 20, 06:40 UTCJul 20, 09:05 UTC2h 25m
2026-07-20 VSV5291 - Jul 20, 01:40 UTCJul 20, 04:30 UTC2h 50m
2026-07-19 VSV5291 - Jul 19, 05:15 UTCJul 20, 03:45 UTC22h 30m
2026-07-18 VSV5211 - Jul 18, 11:00 UTCJul 19, 05:25 UTC18h 25m
2026-07-18 VSV5210 - Jul 18, 06:30 UTCJul 18, 08:55 UTC2h 25m
2026-07-17 VSV5295 - Jul 17, 00:55 UTCJul 17, 06:50 UTC5h 55m
2026-07-16 VSV5211 - Jul 16, 10:00 UTCJul 17, 06:50 UTC20h 50m
2026-07-16 VSV5210 - Jul 16, 05:45 UTCJul 16, 08:05 UTC2h 20m
2026-07-15 VSV5345 - Jul 15, 06:50 UTCJul 16, 05:45 UTC22h 55m
2026-07-14 VSV5211 - Jul 14, 11:50 UTCJul 15, 07:00 UTC19h 9m
2026-07-14 VSV5211 - Jul 14, 11:00 UTCJul 15, 07:00 UTC19h 59m
2026-07-14 VSV5210 - Jul 14, 06:20 UTCJul 14, 08:45 UTC2h 25m
2026-07-13 VSV5210 - Jul 13, 07:50 UTCJul 14, 07:30 UTC23h 40m
2026-07-13 VSV5211 - Jul 13, 06:10 UTCJul 13, 08:01 UTC1h 50m
2026-07-13 VSV5210 - Jul 13, 02:01 UTCJul 13, 04:15 UTC2h 15m
2026-07-12 VSV5210 - Jul 12, 05:15 UTCJul 13, 03:45 UTC22h 30m
2026-07-11 VSV5292 - Jul 11, 11:00 UTCJul 12, 05:30 UTC18h 30m
2026-07-11 VSV5291 - Jul 11, 06:05 UTCJul 11, 08:50 UTC2h 45m
2026-07-10 VSV5291 - Jul 10, 10:05 UTCJul 11, 08:50 UTC22h 45m
2026-07-09 VSV5280 - Jul 9, 20:45 UTCJul 10, 07:10 UTC10h 25m
2026-07-09 VSV5210 - Jul 9, 16:40 UTCJul 9, 19:10 UTC2h 30m
2026-07-07 VSV5211 - Jul 7, 11:50 UTCJul 8, 07:05 UTC19h 15m
2026-07-07 VSV5211 - Jul 7, 10:55 UTCJul 8, 07:05 UTC20h 10m
2026-07-07 VSV5210 - Jul 7, 06:15 UTCJul 7, 08:45 UTC2h 30m
2026-07-06 VSV5210 - Jul 6, 07:50 UTCJul 7, 07:35 UTC23h 45m
2026-07-06 VSV5292 - Jul 6, 06:50 UTCJul 6, 09:10 UTC2h 20m
2026-07-06 VSV5291 - Jul 6, 03:35 UTCJul 6, 04:10 UTC35m
2026-07-06 VSV5291 - Jul 6, 01:20 UTCJul 6, 03:30 UTC2h 10m
2026-07-05 VSV5291 - Jul 5, 05:00 UTCJul 6, 03:30 UTC22h 30m
2026-07-04 VSV5211 - Jul 4, 11:05 UTCJul 5, 05:10 UTC18h 5m
2026-07-04 VSV5210 - Jul 4, 06:20 UTCJul 4, 08:45 UTC2h 25m
2026-07-03 VSV5210 - Jul 3, 09:50 UTCJul 4, 08:45 UTC22h 55m
2026-07-02 VSV5212 - Jul 2, 09:55 UTCJul 3, 07:45 UTC21h 50m
2026-07-02 VSV5210 - Jul 2, 06:00 UTCJul 2, 08:20 UTC2h 20m
2026-06-30 VSV5211 - Jun 30, 12:00 UTCJul 1, 07:00 UTC19h 0m
2026-06-30 VSV5211 - Jun 30, 11:10 UTCJul 1, 07:00 UTC19h 50m
2026-06-30 VSV5210 - Jun 30, 06:40 UTCJun 30, 09:05 UTC2h 25m
2026-06-29 VSV5210 - Jun 29, 07:50 UTCJun 30, 07:20 UTC23h 30m
2026-06-29 VSV5211 - Jun 29, 06:19 UTCJun 29, 07:59 UTC1h 40m
2026-06-29 VSV5210 - Jun 29, 02:20 UTCJun 29, 04:50 UTC2h 30m
2026-06-28 VSV5210 - Jun 28, 04:10 UTCJun 29, 03:39 UTC23h 30m

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 UP-B5704 page for operator, model, and routing details .

Mode-S 6831E7 frequently asked

What is Mode-S code 6831E7?
6831E7 is an ICAO 24-bit transponder address. Allocated to Kazakhstan. Assigned to UP-B5704.
Where is Mode-S 6831E7 registered?
Mode-S code 6831E7 is allocated to Kazakhstan (KZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 6831E7 broadcasting right now?
No active broadcast right now. Last signal was 19d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 6831E7, octal 32030747, decimal 6,828,519.
What flights does 6831E7 operate?
Mode-S 6831E7 has broadcast 20 distinct callsigns, including VSV5210, VSV5211, VSV5291, VSV5292, VSV5212.