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 2h ago
Flights observed
76
Distinct callsigns
17
Country
KZ
Last broadcast
2h 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 17 distinct

Callsign Airline Flights Last seen
VSV5210 - 21 2026-06-30
VSV5211 - 13 2026-06-29
VSV5291 - 8 2026-06-26
VSV5212 Scat Air 6 2026-06-07
VSV5292 - 5 2026-06-27
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
VSV711D - 1 2026-05-11
VSV5351 Scat Air 1 2026-05-20
VSV5282 - 1 2026-05-11
VSV5281 Scat Air 1 2026-05-11
VSV5272 - 1 2026-06-08
VSV5218 - 1 2026-05-27
VSV3464 Scat Air 1 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-06-27 VSV5292 - Jun 27, 09:50 UTCJun 28, 04:55 UTC19h 5m
2026-06-26 VSV5291 - Jun 26, 09:59 UTCJun 27, 07:15 UTC21h 15m
2026-06-26 VSV5296 - Jun 26, 07:50 UTCJun 27, 07:15 UTC23h 25m
2026-06-26 VSV5296 - Jun 26, 05:50 UTCJun 27, 05:04 UTC23h 15m
2026-06-26 VSV5296 - Jun 26, 01:15 UTCJun 26, 10:05 UTC8h 50m
2026-06-25 VSV5296 - Jun 25, 09:59 UTCJun 26, 09:45 UTC23h 45m
2026-06-25 VSV5292 - Jun 25, 08:30 UTCJun 26, 07:45 UTC23h 15m
2026-06-25 VSV5291 - Jun 25, 02:54 UTCJun 25, 06:00 UTC3h 5m
2026-06-24 VSV5291 - Jun 24, 06:45 UTCJun 25, 05:44 UTC23h 0m
2026-06-23 VSV5211 - Jun 23, 11:59 UTCJun 24, 06:45 UTC18h 45m
2026-06-23 VSV5211 - Jun 23, 11:10 UTCJun 24, 06:45 UTC19h 35m
2026-06-23 VSV5210 - Jun 23, 07:09 UTCJun 23, 09:29 UTC2h 20m
2026-06-22 VSV5210 - Jun 22, 12:05 UTCJun 23, 09:29 UTC21h 25m
2026-06-22 VSV5210 - Jun 22, 10:55 UTCJun 23, 09:29 UTC22h 35m
2026-06-22 VSV5271 - Jun 22, 06:25 UTCJun 22, 09:04 UTC2h 40m
2026-06-20 VSV5211 - Jun 20, 10:55 UTCJun 21, 04:34 UTC17h 40m
2026-06-20 VSV5210 - Jun 20, 06:24 UTCJun 20, 09:09 UTC2h 45m
2026-06-18 VSV5292 - Jun 18, 09:00 UTCJun 19, 01:34 UTC16h 34m
2026-06-17 VSV5291 - Jun 17, 14:40 UTCJun 18, 06:45 UTC16h 5m
2026-06-17 VSV5217 - Jun 17, 10:35 UTCJun 17, 12:55 UTC2h 20m
2026-06-16 VSV5211 - Jun 16, 12:14 UTCJun 17, 11:15 UTC23h 1m
2026-06-16 VSV5211 - Jun 16, 11:20 UTCJun 16, 13:15 UTC1h 55m
2026-06-16 VSV5210 - Jun 16, 06:25 UTCJun 16, 08:44 UTC2h 20m
2026-06-15 VSV5210 - Jun 15, 08:00 UTCJun 16, 07:09 UTC23h 10m
2026-06-15 VSV5211 - Jun 15, 06:40 UTCJun 15, 08:35 UTC1h 55m
2026-06-15 VSV5210 - Jun 15, 01:45 UTCJun 15, 04:00 UTC2h 15m
2026-06-13 VSV5292 - Jun 13, 04:10 UTCJun 13, 12:45 UTC8h 35m
2026-06-11 VSV5291 ALA → ALA Jun 11, 02:50 UTCJun 11, 11:35 UTC8h 45m
2026-06-10 VSV5291 ALA → ALA Jun 10, 11:55 UTCJun 11, 11:35 UTC23h 40m
2026-06-10 VSV5291 ALA → ALA Jun 10, 11:05 UTCJun 11, 09:45 UTC22h 40m
2026-06-10 VSV5217 - Jun 10, 07:00 UTCJun 10, 09:25 UTC2h 25m
2026-06-08 VSV5272 - Jun 8, 10:00 UTCJun 8, 12:25 UTC2h 25m
2026-06-07 VSV5271 - Jun 7, 13:50 UTCJun 8, 08:05 UTC18h 15m
2026-06-07 VSV5271 - Jun 7, 12:50 UTCJun 8, 08:05 UTC19h 15m
2026-06-07 VSV5212 ALA → GOI Jun 7, 11:10 UTCJun 7, 11:35 UTC25m
2026-06-07 VSV5212 ALA → GOI Jun 7, 09:15 UTCJun 7, 10:30 UTC1h 15m
2026-06-06 VSV5212 ALA → GOI Jun 6, 12:14 UTCJun 7, 10:30 UTC22h 15m
2026-06-06 VSV5292 - Jun 6, 10:09 UTCJun 7, 09:45 UTC23h 35m
2026-06-06 VSV5291 ALA → ALA Jun 6, 04:45 UTCJun 6, 12:49 UTC8h 5m
2026-06-04 VSV5211 - Jun 4, 10:00 UTCJun 4, 11:50 UTC1h 50m
2026-06-04 VSV5210 - Jun 4, 05:45 UTCJun 4, 07:50 UTC2h 5m
2026-06-03 VSV5210 - Jun 3, 08:50 UTCJun 4, 07:45 UTC22h 55m
2026-06-02 VSV5211 - Jun 2, 12:05 UTCJun 3, 09:00 UTC20h 55m
2026-06-02 VSV5211 - Jun 2, 10:45 UTCJun 3, 09:00 UTC22h 15m
2026-06-02 VSV5210 - Jun 2, 06:30 UTCJun 2, 08:50 UTC2h 20m

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 2h 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 17 distinct callsigns, including VSV5210, VSV5211, VSV5291, VSV5212, VSV5292.