sensors Mode-S transponder
683328
ICAO 24-bit transponder address · allocated to Kazakhstan
Currently assigned to UP-B3736 · BOEING 737-800
- Hex
- 683328
- Octal
- 32031450
- Decimal
- 6,828,840
- Country
- KZ
- Tail
- UP-B3736
- Type
- B738
- Flights observed
- 45
- Distinct callsigns
- 13
- Country
- KZ
- Last broadcast
- 5h ago
Last known position
Country allocation
The ICAO 24-bit address 683328 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 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| VSV841 | Scat Air | 12 | 2026-06-02 |
| VSV842 | Scat Air | 11 | 2026-06-02 |
| VSV813 | Scat Air | 7 | 2026-05-21 |
| VSV784 | Scat Air | 3 | 2026-05-30 |
| VSV742 | Scat Air | 2 | 2026-05-17 |
| VSV741 | Scat Air | 2 | 2026-05-16 |
| VSV725 | Scat Air | 2 | 2026-05-30 |
| VSV822 | Scat Air | 1 | 2026-05-10 |
| VSV821 | Scat Air | 1 | 2026-05-24 |
| VSV814 | Scat Air | 1 | 2026-05-10 |
| VSV730 | Scat Air | 1 | 2026-05-13 |
| VSV724 | Scat Air | 1 | 2026-05-27 |
| VSV723 | Scat Air | 1 | 2026-05-27 |
Recent flights last 45
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | VSV842 | TBS → SCO | Jun 2, 22:25 UTC | Jun 2, 22:50 UTC | 25m |
| 2026-06-02 | VSV841 | SCO → TBS | Jun 2, 20:50 UTC | Jun 2, 21:20 UTC | 30m |
| 2026-05-30 | VSV842 | TBS → SCO | May 30, 22:30 UTC | May 30, 22:55 UTC | 25m |
| 2026-05-30 | VSV841 | SCO → TBS | May 30, 20:55 UTC | May 30, 21:15 UTC | 20m |
| 2026-05-30 | VSV784 | UKK → NQZ | May 30, 12:15 UTC | May 30, 12:45 UTC | 30m |
| 2026-05-30 | VSV725 | ALA → UKK | May 30, 10:15 UTC | May 30, 10:40 UTC | 25m |
| 2026-05-27 | VSV724 | UKK → CIT | May 27, 03:59 UTC | May 27, 04:24 UTC | 25m |
| 2026-05-27 | VSV723 | CIT → UKK | May 27, 01:54 UTC | May 27, 02:24 UTC | 30m |
| 2026-05-24 | VSV821 | NQZ → LED | May 24, 05:05 UTC | May 24, 06:15 UTC | 1h 10m |
| 2026-05-21 | VSV813 | ALA → TAS | May 21, 17:20 UTC | May 21, 18:50 UTC | 1h 30m |
| 2026-05-18 | VSV813 | ALA → TAS | May 18, 00:45 UTC | May 18, 18:30 UTC | 17h 44m |
| 2026-05-17 | VSV742 | SCO → NQZ | May 17, 00:25 UTC | May 17, 00:40 UTC | 15m |
| 2026-05-16 | VSV842 | TBS → SCO | May 16, 21:40 UTC | May 16, 22:50 UTC | 1h 10m |
| 2026-05-16 | VSV841 | SCO → TBS | May 16, 19:35 UTC | May 16, 20:35 UTC | 1h 0m |
| 2026-05-16 | VSV741 | NQZ → SCO | May 16, 00:30 UTC | May 16, 18:10 UTC | 17h 41m |
| 2026-05-15 | VSV741 | NQZ → SCO | May 15, 17:55 UTC | May 15, 18:10 UTC | 15m |
| 2026-05-14 | VSV842 | TBS → SCO | May 14, 22:45 UTC | May 15, 18:10 UTC | 19h 24m |
| 2026-05-14 | VSV841 | SCO → TBS | May 14, 20:00 UTC | May 14, 20:30 UTC | 30m |
| 2026-05-14 | VSV841 | SCO → TBS | May 14, 00:35 UTC | May 14, 20:30 UTC | 19h 55m |
| 2026-05-13 | VSV730 | ALA → SCO | May 13, 22:30 UTC | May 13, 22:40 UTC | 10m |
| 2026-05-12 | VSV842 | TBS → SCO | May 12, 21:40 UTC | May 12, 22:10 UTC | 30m |
| 2026-05-12 | VSV841 | SCO → TBS | May 12, 19:35 UTC | May 12, 20:35 UTC | 1h 0m |
| 2026-05-12 | VSV784 | UKK → NQZ | May 12, 12:10 UTC | May 12, 17:45 UTC | 5h 35m |
| 2026-05-11 | VSV813 | ALA → TAS | May 11, 17:35 UTC | May 12, 10:30 UTC | 16h 55m |
| 2026-05-11 | VSV813 | ALA → TAS | May 11, 12:05 UTC | May 12, 10:30 UTC | 22h 26m |
| 2026-05-11 | VSV813 | ALA → TAS | May 11, 11:55 UTC | May 11, 20:05 UTC | 8h 10m |
| 2026-05-10 | VSV814 | TAS → ALA | May 10, 18:20 UTC | May 11, 10:10 UTC | 15h 50m |
| 2026-05-10 | VSV822 | LED → NQZ | May 10, 10:15 UTC | May 10, 10:24 UTC | 10m |
| 2026-05-10 | VSV742 | SCO → NQZ | May 10, 00:49 UTC | May 10, 01:04 UTC | 15m |
| 2026-05-09 | VSV842 | TBS → SCO | May 9, 22:10 UTC | May 9, 22:39 UTC | 30m |
| 2026-05-09 | VSV841 | SCO → TBS | May 9, 20:25 UTC | May 9, 21:00 UTC | 35m |
| 2026-05-07 | VSV842 | TBS → SCO | May 7, 22:05 UTC | May 7, 22:35 UTC | 30m |
| 2026-05-07 | VSV841 | SCO → TBS | May 7, 20:25 UTC | May 7, 20:55 UTC | 30m |
| 2026-05-05 | VSV813 | ALA → TAS | May 5, 16:50 UTC | May 5, 18:20 UTC | 1h 30m |
| 2026-05-02 | VSV842 | TBS → SCO | May 2, 21:40 UTC | May 2, 22:10 UTC | 30m |
| 2026-05-02 | VSV841 | SCO → TBS | May 2, 20:15 UTC | May 2, 20:35 UTC | 20m |
| 2026-04-30 | VSV842 | TBS → SCO | Apr 30, 22:10 UTC | Apr 30, 22:35 UTC | 25m |
| 2026-04-30 | VSV841 | SCO → TBS | Apr 30, 20:30 UTC | Apr 30, 21:10 UTC | 40m |
| 2026-04-28 | VSV842 | TBS → SCO | Apr 28, 21:55 UTC | Apr 28, 22:20 UTC | 25m |
| 2026-04-28 | VSV841 | SCO → TBS | Apr 28, 20:15 UTC | Apr 28, 20:50 UTC | 35m |
| 2026-04-26 | VSV784 | UKK → NQZ | Apr 26, 12:00 UTC | Apr 26, 18:15 UTC | 6h 15m |
| 2026-04-26 | VSV725 | ALA → UKK | Apr 26, 09:50 UTC | Apr 26, 10:15 UTC | 25m |
| 2026-04-21 | VSV813 | ALA → TAS | Apr 21, 18:15 UTC | Apr 21, 18:35 UTC | 20m |
| 2026-04-14 | VSV842 | TBS → SCO | Apr 14, 21:50 UTC | Apr 14, 22:05 UTC | 15m |
| 2026-04-14 | VSV841 | SCO → TBS | Apr 14, 20:10 UTC | Apr 14, 20:25 UTC | 15m |
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-B3736 page for operator, model, and routing details .