sensors Mode-S transponder
15205C
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73820 · AIRBUS A-320neo
- Hex
- 15205C
- Octal
- 05220134
- Decimal
- 1,384,540
- Country
- RU
- Tail
- RA-73820
- Type
- A20N
- Flights observed
- 32
- Distinct callsigns
- 11
- Country
- RU
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 15205C falls within the block assigned to Russia (RU) by ICAO Annex 10, Volume III. Every aircraft registered in Russia 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 11 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SVR300 | Ural Airlines | 6 | 2026-05-30 |
| SVR624 | Ural Airlines | 4 | 2026-05-18 |
| SVR350 | Ural Airlines | 4 | 2026-06-01 |
| SVR093 | Ural Airlines | 4 | 2026-04-22 |
| SVR623 | Ural Airlines | 3 | 2026-05-06 |
| SVR572 | Ural Airlines | 3 | 2026-05-16 |
| SVR299 | Ural Airlines | 2 | 2026-04-24 |
| SVR174 | Ural Airlines | 2 | 2026-05-23 |
| SVR173 | Ural Airlines | 2 | 2026-05-16 |
| SVR349 | Ural Airlines | 1 | 2026-05-26 |
| SVR094 | Ural Airlines | 1 | 2026-04-16 |
Recent flights last 32
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-01 | SVR350 | BQS → DME | Jun 1, 08:10 UTC | Jun 1, 08:35 UTC | 25m |
| 2026-05-30 | SVR300 | SVX → DME | May 30, 12:15 UTC | May 30, 12:25 UTC | 10m |
| 2026-05-26 | SVR349 | DME → BQS | May 26, 19:40 UTC | May 27, 08:45 UTC | 13h 6m |
| 2026-05-23 | SVR174 | KHV → SVX | May 23, 13:35 UTC | May 23, 18:50 UTC | 5h 15m |
| 2026-05-18 | SVR624 | SVX → HTA | May 18, 00:55 UTC | May 18, 01:35 UTC | 40m |
| 2026-05-16 | SVR173 | SVX → KHV | May 16, 18:40 UTC | May 16, 18:50 UTC | 10m |
| 2026-05-16 | SVR572 | VVO → SVX | May 16, 08:26 UTC | May 16, 09:01 UTC | 35m |
| 2026-05-14 | SVR300 | SVX → DME | May 14, 12:10 UTC | May 14, 12:25 UTC | 15m |
| 2026-05-13 | SVR300 | SVX → DME | May 13, 16:35 UTC | May 14, 12:25 UTC | 19h 50m |
| 2026-05-12 | SVR624 | SVX → HTA | May 12, 22:20 UTC | May 13, 16:45 UTC | 18h 25m |
| 2026-05-09 | SVR173 | SVX → KHV | May 9, 18:40 UTC | May 9, 18:50 UTC | 10m |
| 2026-05-06 | SVR623 | HTA → SVX | May 6, 17:50 UTC | May 7, 05:45 UTC | 11h 55m |
| 2026-05-03 | SVR300 | SVX → DME | May 3, 12:10 UTC | May 3, 12:40 UTC | 30m |
| 2026-05-01 | SVR623 | HTA → SVX | May 1, 10:05 UTC | May 1, 11:00 UTC | 55m |
| 2026-04-30 | SVR624 | SVX → HTA | Apr 30, 23:40 UTC | May 1, 06:25 UTC | 6h 45m |
| 2026-04-30 | SVR572 | VVO → SVX | Apr 30, 09:05 UTC | May 1, 06:25 UTC | 21h 20m |
| 2026-04-29 | SVR572 | VVO → SVX | Apr 29, 11:05 UTC | Apr 30, 09:55 UTC | 22h 49m |
| 2026-04-28 | SVR350 | BQS → DME | Apr 28, 19:55 UTC | Apr 29, 11:25 UTC | 15h 30m |
| 2026-04-27 | SVR300 | SVX → DME | Apr 27, 12:10 UTC | Apr 27, 20:10 UTC | 8h 0m |
| 2026-04-26 | SVR350 | BQS → DME | Apr 26, 08:45 UTC | Apr 26, 09:30 UTC | 45m |
| 2026-04-24 | SVR299 | DME → SVX | Apr 24, 16:30 UTC | Apr 24, 16:40 UTC | 10m |
| 2026-04-24 | SVR300 | SVX → DME | Apr 24, 11:25 UTC | Apr 24, 11:35 UTC | 10m |
| 2026-04-23 | SVR299 | DME → SVX | Apr 23, 16:25 UTC | Apr 23, 16:55 UTC | 30m |
| 2026-04-22 | SVR093 | DME → HTA | Apr 22, 20:40 UTC | Apr 23, 16:55 UTC | 20h 15m |
| 2026-04-22 | SVR093 | DME → HTA | Apr 22, 18:25 UTC | Apr 23, 16:55 UTC | 22h 30m |
| 2026-04-19 | SVR624 | SVX → HTA | Apr 19, 22:15 UTC | Apr 19, 23:55 UTC | 1h 40m |
| 2026-04-19 | SVR174 | KHV → SVX | Apr 19, 12:50 UTC | Apr 19, 13:00 UTC | 10m |
| 2026-04-17 | SVR350 | BQS → DME | Apr 17, 08:05 UTC | Apr 17, 09:15 UTC | 1h 10m |
| 2026-04-16 | SVR094 | HTA → DME | Apr 16, 03:19 UTC | Apr 16, 03:34 UTC | 15m |
| 2026-04-15 | SVR093 | DME → HTA | Apr 15, 21:05 UTC | Apr 15, 22:20 UTC | 1h 15m |
| 2026-04-15 | SVR093 | DME → HTA | Apr 15, 20:35 UTC | Apr 15, 21:00 UTC | 25m |
| 2026-04-13 | SVR623 | - | Apr 13, 04:30 UTC | Apr 13, 05:20 UTC | 50m |
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 RA-73820 page for operator, model, and routing details .