sensors Mode-S transponder
151EC8
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73416 · AIRBUS A-321
- Hex
- 151EC8
- Octal
- 05217310
- Decimal
- 1,384,136
- Country
- RU
- Tail
- RA-73416
- Type
- A321
- Flights observed
- 104
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 151EC8 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 20 distinct
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | SBI5257 | OVB → UUS | May 29, 16:25 UTC | May 30, 04:00 UTC | 11h 35m |
| 2026-05-29 | SBI5565 | OVB → TAS | May 29, 07:25 UTC | May 29, 07:45 UTC | 20m |
| 2026-05-28 | SBI5224 | HTA → OVB | May 28, 18:55 UTC | May 29, 01:45 UTC | 6h 50m |
| 2026-05-28 | SBI5005 | OVB → LED | May 28, 09:20 UTC | May 28, 17:00 UTC | 7h 40m |
| 2026-05-27 | SBI5258 | UUS → OVB | May 27, 16:20 UTC | May 28, 04:20 UTC | 12h 0m |
| 2026-05-27 | SBI5565 | OVB → TAS | May 27, 07:25 UTC | May 27, 13:30 UTC | 6h 5m |
| 2026-05-26 | SBI5258 | UUS → OVB | May 26, 16:20 UTC | May 27, 04:30 UTC | 12h 10m |
| 2026-05-26 | SBI5565 | OVB → TAS | May 26, 07:34 UTC | May 26, 13:29 UTC | 5h 55m |
| 2026-05-25 | SBI5237 | OVB → KHV | May 25, 16:50 UTC | May 26, 03:40 UTC | 10h 49m |
| 2026-05-25 | SBI5565 | OVB → TAS | May 25, 07:25 UTC | May 25, 13:25 UTC | 6h 0m |
| 2026-05-24 | SBI5257 | OVB → UUS | May 24, 16:15 UTC | May 25, 04:10 UTC | 11h 55m |
| 2026-05-23 | SBI5542 | FRU → OVB | May 23, 18:40 UTC | May 24, 14:00 UTC | 19h 20m |
| 2026-05-23 | SBI5542 | FRU → OVB | May 23, 15:00 UTC | May 24, 14:00 UTC | 23h 0m |
| 2026-05-22 | SBI5238 | KHV → OVB | May 22, 17:05 UTC | May 23, 03:35 UTC | 10h 29m |
| 2026-05-22 | SBI5569 | OVB → SKD | May 22, 07:15 UTC | May 22, 13:30 UTC | 6h 14m |
| 2026-05-21 | SBI5238 | KHV → OVB | May 21, 17:10 UTC | May 22, 03:35 UTC | 10h 25m |
| 2026-05-21 | SBI2506 | OVB → DME | May 21, 07:30 UTC | May 21, 12:20 UTC | 4h 50m |
| 2026-05-20 | SBI5238 | KHV → OVB | May 20, 16:50 UTC | May 21, 03:35 UTC | 10h 45m |
| 2026-05-19 | SBI5238 | KHV → OVB | May 19, 08:35 UTC | May 20, 03:20 UTC | 18h 45m |
| 2026-05-19 | SBI5238 | KHV → OVB | May 19, 04:05 UTC | May 20, 03:20 UTC | 23h 15m |
| 2026-05-17 | SBI5238 | KHV → OVB | May 17, 17:10 UTC | May 18, 03:30 UTC | 10h 20m |
| 2026-05-17 | SBI5237 | OVB → KHV | May 17, 00:35 UTC | May 17, 17:30 UTC | 16h 55m |
| 2026-05-16 | SBI3236 | ASB → DME | May 16, 18:05 UTC | May 17, 17:30 UTC | 23h 25m |
| 2026-05-16 | SBI3236 | ASB → DME | May 16, 15:50 UTC | May 17, 00:35 UTC | 8h 45m |
| 2026-05-16 | SBI3236 | ASB → DME | May 16, 04:05 UTC | May 17, 00:35 UTC | 20h 30m |
| 2026-05-16 | SBI3236 | ASB → DME | May 16, 03:55 UTC | May 17, 00:35 UTC | 20h 40m |
| 2026-05-16 | SBI3236 | ASB → DME | May 16, 01:50 UTC | May 16, 18:40 UTC | 16h 51m |
| 2026-05-14 | SBI2502 | OVB → DME | May 14, 23:40 UTC | May 15, 07:55 UTC | 8h 15m |
| 2026-05-14 | SBI2507 | DME → OVB | May 14, 11:05 UTC | May 14, 12:15 UTC | 1h 10m |
| 2026-05-13 | SBI5238 | KHV → OVB | May 13, 08:05 UTC | May 14, 03:45 UTC | 19h 40m |
| 2026-05-13 | SBI5238 | KHV → OVB | May 13, 07:45 UTC | May 14, 03:45 UTC | 20h 0m |
| 2026-05-13 | SBI5238 | KHV → OVB | May 13, 04:05 UTC | May 14, 03:45 UTC | 23h 40m |
| 2026-05-12 | SBI5220 | GDX → OVB | May 12, 17:20 UTC | May 13, 13:20 UTC | 20h 0m |
| 2026-05-12 | SBI5220 | GDX → OVB | May 12, 04:05 UTC | May 12, 13:20 UTC | 9h 15m |
| 2026-05-11 | SBI5220 | GDX → OVB | May 11, 17:35 UTC | May 12, 13:20 UTC | 19h 45m |
| 2026-05-11 | SBI5220 | GDX → OVB | May 11, 04:00 UTC | May 11, 13:00 UTC | 9h 0m |
| 2026-05-10 | SBI5220 | GDX → OVB | May 10, 17:15 UTC | May 11, 13:00 UTC | 19h 45m |
| 2026-05-10 | SBI5220 | GDX → OVB | May 10, 04:04 UTC | May 11, 04:00 UTC | 23h 55m |
| 2026-05-10 | SBI5220 | GDX → OVB | May 10, 03:55 UTC | May 10, 17:25 UTC | 13h 30m |
| 2026-05-09 | SBI5220 | GDX → OVB | May 9, 13:05 UTC | May 10, 04:29 UTC | 15h 25m |
| 2026-05-09 | SBI5220 | GDX → OVB | May 9, 08:05 UTC | May 10, 04:29 UTC | 20h 25m |
| 2026-05-09 | SBI5565 | OVB → TAS | May 9, 07:45 UTC | May 10, 04:29 UTC | 20h 45m |
| 2026-05-09 | SBI5220 | GDX → OVB | May 9, 04:10 UTC | May 10, 04:00 UTC | 23h 50m |
| 2026-05-08 | SBI5565 | OVB → TAS | May 8, 17:05 UTC | May 9, 13:30 UTC | 20h 25m |
| 2026-05-08 | SBI5565 | OVB → TAS | May 8, 12:49 UTC | May 9, 08:20 UTC | 19h 30m |
| 2026-05-08 | SBI5258 | UUS → OVB | May 8, 03:39 UTC | May 8, 17:30 UTC | 13h 50m |
| 2026-05-07 | SBI5258 | UUS → OVB | May 7, 12:15 UTC | May 8, 04:19 UTC | 16h 4m |
| 2026-05-07 | SBI5556 | LBD → OVB | May 7, 03:55 UTC | May 7, 12:45 UTC | 8h 50m |
| 2026-05-06 | SBI5556 | LBD → OVB | May 6, 16:35 UTC | May 7, 12:45 UTC | 20h 10m |
| 2026-05-06 | SBI5220 | GDX → OVB | May 6, 04:05 UTC | May 7, 04:00 UTC | 23h 54m |
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-73416 page for operator, model, and routing details .