sensors Mode-S transponder
151ECF
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73423 · AIRBUS A-320
- Hex
- 151ECF
- Octal
- 05217317
- Decimal
- 1,384,143
- Country
- RU
- Tail
- RA-73423
- Type
- A320
- Flights observed
- 97
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 11h ago
Last known position
Country allocation
The ICAO 24-bit address 151ECF 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 | SBI1135 | DME → UFA | May 29, 07:55 UTC | May 29, 22:10 UTC | 14h 15m |
| 2026-05-28 | SBI1136 | UFA → DME | May 28, 11:00 UTC | May 29, 04:30 UTC | 17h 30m |
| 2026-05-28 | SBI1135 | DME → UFA | May 28, 08:20 UTC | May 29, 04:30 UTC | 20h 10m |
| 2026-05-27 | SBI2629 | DME → RGK | May 27, 21:10 UTC | May 28, 15:25 UTC | 18h 15m |
| 2026-05-26 | SBI3042 | BTK → DME | May 26, 22:20 UTC | May 27, 16:35 UTC | 18h 15m |
| 2026-05-26 | SBI1214 | KGD → DME | May 26, 15:39 UTC | May 27, 07:50 UTC | 16h 11m |
| 2026-05-26 | SBI1213 | DME → MRV | May 26, 12:30 UTC | May 26, 13:45 UTC | 1h 15m |
| 2026-05-24 | SBI5245 | OVB → NER | May 24, 18:00 UTC | May 25, 02:25 UTC | 8h 25m |
| 2026-05-23 | SBI5245 | OVB → NER | May 23, 18:05 UTC | May 24, 02:35 UTC | 8h 31m |
| 2026-05-23 | SBI2507 | DME → OVB | May 23, 13:45 UTC | May 23, 13:55 UTC | 10m |
| 2026-05-23 | SBI1004 | LED → DME | May 23, 09:45 UTC | May 23, 10:00 UTC | 15m |
| 2026-05-23 | SBI1003 | DME → LED | May 23, 08:00 UTC | May 23, 08:15 UTC | 15m |
| 2026-05-22 | SBI1214 | KGD → DME | May 22, 15:35 UTC | May 22, 17:25 UTC | 1h 50m |
| 2026-05-22 | SBI1213 | DME → MRV | May 22, 07:35 UTC | May 22, 13:40 UTC | 6h 5m |
| 2026-05-21 | SBI5303 | OVB → NSK | May 21, 21:55 UTC | May 22, 03:50 UTC | 5h 55m |
| 2026-05-20 | SBI1214 | KGD → DME | May 20, 15:30 UTC | May 21, 04:30 UTC | 13h 0m |
| 2026-05-20 | SBI1213 | DME → MRV | May 20, 13:10 UTC | May 20, 14:00 UTC | 50m |
| 2026-05-19 | SBI2511 | DME → OVB | May 19, 13:10 UTC | May 20, 03:50 UTC | 14h 40m |
| 2026-05-19 | SBI2511 | DME → OVB | May 19, 04:50 UTC | May 20, 03:45 UTC | 22h 55m |
| 2026-05-18 | SBI2511 | DME → OVB | May 18, 23:45 UTC | May 19, 18:30 UTC | 18h 45m |
| 2026-05-18 | SBI2630 | RGK → DME | May 18, 05:50 UTC | May 19, 05:20 UTC | 23h 29m |
| 2026-05-18 | SBI3018 | IKT → DME | May 18, 05:35 UTC | May 18, 23:45 UTC | 18h 9m |
| 2026-05-18 | SBI3018 | IKT → DME | May 18, 03:01 UTC | May 18, 23:45 UTC | 20h 44m |
| 2026-05-17 | SBI3018 | IKT → DME | May 17, 14:30 UTC | May 18, 06:10 UTC | 15h 40m |
| 2026-05-15 | SBI2629 | DME → RGK | May 15, 21:10 UTC | May 16, 15:10 UTC | 18h 1m |
| 2026-05-15 | SBI2629 | DME → RGK | May 15, 13:05 UTC | May 16, 04:35 UTC | 15h 29m |
| 2026-05-15 | SBI2629 | DME → RGK | May 15, 05:55 UTC | May 16, 04:35 UTC | 22h 39m |
| 2026-05-15 | SBI3018 | IKT → DME | May 15, 03:05 UTC | May 15, 21:50 UTC | 18h 44m |
| 2026-05-14 | SBI3018 | IKT → DME | May 14, 21:50 UTC | May 15, 21:45 UTC | 23h 54m |
| 2026-05-14 | SBI3018 | IKT → DME | May 14, 12:35 UTC | May 15, 06:25 UTC | 17h 50m |
| 2026-05-12 | SBI1136 | UFA → DME | May 12, 13:45 UTC | May 12, 17:35 UTC | 3h 50m |
| 2026-05-10 | SBI2169 | DME → MRV | May 10, 20:20 UTC | May 11, 13:25 UTC | 17h 5m |
| 2026-05-10 | SBI2514 | OVB → DME | May 10, 10:00 UTC | May 10, 16:59 UTC | 7h 0m |
| 2026-05-10 | SBI3018 | IKT → DME | May 10, 03:00 UTC | May 10, 06:20 UTC | 3h 20m |
| 2026-05-09 | SBI3017 | DME → IKT | May 9, 19:10 UTC | May 9, 22:30 UTC | 3h 20m |
| 2026-05-08 | SBI1074 | KUF → DME | May 8, 14:15 UTC | May 8, 15:30 UTC | 1h 15m |
| 2026-05-08 | SBI2606 | KEJ → DME | May 8, 00:14 UTC | May 8, 03:44 UTC | 3h 30m |
| 2026-05-07 | SBI2605 | DME → KEJ | May 7, 03:50 UTC | May 7, 22:35 UTC | 18h 45m |
| 2026-05-06 | SBI2605 | DME → KEJ | May 6, 23:35 UTC | May 7, 20:20 UTC | 20h 45m |
| 2026-05-06 | SBI2629 | DME → RGK | May 6, 20:15 UTC | May 7, 03:50 UTC | 7h 35m |
| 2026-05-06 | SBI2170 | MRV → DME | May 6, 15:15 UTC | May 6, 15:30 UTC | 15m |
| 2026-05-06 | SBI3042 | BTK → DME | May 6, 07:05 UTC | May 6, 11:15 UTC | 4h 10m |
| 2026-05-04 | SBI2572 | NUX → DME | May 4, 04:20 UTC | May 4, 05:50 UTC | 1h 30m |
| 2026-05-02 | SBI2602 | BAX → DME | May 2, 03:35 UTC | May 2, 04:15 UTC | 40m |
| 2026-05-01 | SBI2582 | NSK → DME | May 1, 03:50 UTC | May 2, 03:45 UTC | 23h 55m |
| 2026-04-30 | SBI2582 | NSK → DME | Apr 30, 11:00 UTC | May 1, 05:05 UTC | 18h 5m |
| 2026-04-30 | SBI2581 | DME → NSK | Apr 30, 00:15 UTC | Apr 30, 23:05 UTC | 22h 50m |
| 2026-04-29 | SBI2605 | DME → KEJ | Apr 29, 22:05 UTC | Apr 29, 22:40 UTC | 35m |
| 2026-04-28 | SBI3018 | IKT → DME | Apr 28, 03:10 UTC | Apr 28, 07:25 UTC | 4h 15m |
| 2026-04-28 | SBI3018 | IKT → DME | Apr 28, 01:45 UTC | Apr 28, 01:55 UTC | 10m |
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-73423 page for operator, model, and routing details .