sensors Mode-S transponder
151FC7
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73671 · BOEING 737-800
- Hex
- 151FC7
- Octal
- 05217707
- Decimal
- 1,384,391
- Country
- RU
- Tail
- RA-73671
- Type
- B738
- Flights observed
- 94
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 151FC7 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 | SBI6311 | IKT → PKX | May 29, 19:30 UTC | May 29, 19:45 UTC | 15m |
| 2026-05-29 | SBI6318 | OSS → IKT | May 29, 04:35 UTC | May 29, 05:30 UTC | 55m |
| 2026-05-28 | SBI6310 | BKK → IKT | May 28, 13:20 UTC | May 29, 02:45 UTC | 13h 25m |
| 2026-05-27 | SBI6309 | IKT → BKK | May 27, 21:45 UTC | May 28, 11:50 UTC | 14h 5m |
| 2026-05-27 | SBI6410 | LED → IKT | May 27, 10:50 UTC | May 27, 19:40 UTC | 8h 50m |
| 2026-05-27 | SBI6410 | LED → IKT | May 27, 09:45 UTC | May 27, 10:00 UTC | 15m |
| 2026-05-26 | SBI6409 | IKT → LED | May 26, 21:44 UTC | May 27, 07:20 UTC | 9h 36m |
| 2026-05-26 | SBI6409 | IKT → LED | May 26, 03:35 UTC | May 26, 19:50 UTC | 16h 15m |
| 2026-05-25 | SBI6318 | OSS → IKT | May 25, 04:55 UTC | May 26, 03:45 UTC | 22h 49m |
| 2026-05-24 | SBI6317 | IKT → OSS | May 24, 14:15 UTC | May 25, 03:35 UTC | 13h 20m |
| 2026-05-24 | SBI6309 | IKT → BKK | May 24, 12:00 UTC | May 24, 12:55 UTC | 55m |
| 2026-05-23 | SBI6310 | BKK → IKT | May 23, 10:10 UTC | May 23, 11:00 UTC | 50m |
| 2026-05-23 | SBI6309 | IKT → BKK | May 23, 07:25 UTC | May 23, 08:25 UTC | 1h 0m |
| 2026-05-22 | SBI6318 | OSS → IKT | May 22, 05:15 UTC | May 22, 06:10 UTC | 55m |
| 2026-05-21 | SBI6317 | IKT → OSS | May 21, 13:25 UTC | May 22, 02:35 UTC | 13h 10m |
| 2026-05-21 | SBI6309 | IKT → BKK | May 21, 10:45 UTC | May 21, 11:50 UTC | 1h 5m |
| 2026-05-20 | SBI5233 | OVB → IKT | May 20, 04:50 UTC | May 20, 05:25 UTC | 35m |
| 2026-05-17 | SBI5864 | AYT → OVB | May 17, 11:20 UTC | May 18, 04:45 UTC | 17h 25m |
| 2026-05-16 | SBI5863 | OVB → AYT | May 16, 14:41 UTC | May 17, 08:30 UTC | 17h 50m |
| 2026-05-16 | SBI5863 | OVB → AYT | May 16, 10:46 UTC | May 17, 08:30 UTC | 21h 45m |
| 2026-05-15 | SBI5105 | OVB → AER | May 15, 05:20 UTC | May 15, 12:45 UTC | 7h 25m |
| 2026-05-14 | SBI5105 | OVB → AER | May 14, 16:30 UTC | May 15, 12:45 UTC | 20h 15m |
| 2026-05-14 | SBI5250 | PKC → OVB | May 14, 11:40 UTC | May 15, 05:50 UTC | 18h 10m |
| 2026-05-13 | SBI5032 | KUF → OVB | May 13, 12:10 UTC | May 14, 11:45 UTC | 23h 35m |
| 2026-05-12 | SBI5208 | VVO → OVB | May 12, 18:00 UTC | May 13, 12:10 UTC | 18h 10m |
| 2026-05-12 | SBI6262 | BKK → VVO | May 12, 13:51 UTC | May 13, 12:10 UTC | 22h 20m |
| 2026-05-12 | SBI6262 | BKK → VVO | May 12, 13:20 UTC | May 13, 11:35 UTC | 22h 15m |
| 2026-05-12 | SBI6261 | VVO → BKK | May 12, 10:40 UTC | May 12, 11:45 UTC | 1h 5m |
| 2026-05-10 | SBI5254 | UUD → OVB | May 10, 23:09 UTC | May 11, 07:35 UTC | 8h 25m |
| 2026-05-10 | SBI5253 | OVB → UUD | May 10, 21:14 UTC | May 10, 21:25 UTC | 10m |
| 2026-05-09 | SBI5240 | IKT → OVB | May 9, 05:50 UTC | May 10, 01:30 UTC | 19h 40m |
| 2026-05-09 | SBI5250 | PKC → OVB | May 9, 05:25 UTC | May 10, 01:30 UTC | 20h 5m |
| 2026-05-08 | SBI5250 | PKC → OVB | May 8, 13:05 UTC | May 9, 09:25 UTC | 20h 20m |
| 2026-05-08 | SBI5250 | PKC → OVB | May 8, 07:50 UTC | May 9, 07:45 UTC | 23h 55m |
| 2026-05-08 | SBI5565 | OVB → TAS | May 8, 07:34 UTC | May 9, 05:45 UTC | 22h 10m |
| 2026-05-08 | SBI5726 | PKX → OVB | May 8, 00:54 UTC | May 8, 13:30 UTC | 12h 35m |
| 2026-05-07 | SBI5725 | - | May 7, 22:35 UTC | May 7, 22:45 UTC | 10m |
| 2026-05-07 | SBI5890 | IST → OVB | May 7, 11:55 UTC | May 7, 20:00 UTC | 8h 5m |
| 2026-05-06 | SBI5105 | OVB → AER | May 6, 12:15 UTC | May 6, 12:35 UTC | 20m |
| 2026-05-05 | SBI5249 | OVB → PKC | May 5, 16:40 UTC | May 6, 12:35 UTC | 19h 55m |
| 2026-05-03 | SBI5890 | IST → OVB | May 3, 11:50 UTC | May 4, 05:20 UTC | 17h 30m |
| 2026-05-02 | SBI5890 | IST → OVB | May 2, 13:25 UTC | May 2, 14:20 UTC | 55m |
| 2026-05-01 | SBI5889 | OVB → IST | May 1, 15:20 UTC | May 2, 09:45 UTC | 18h 25m |
| 2026-05-01 | SBI5228 | IKT → OVB | May 1, 00:30 UTC | May 1, 01:05 UTC | 35m |
| 2026-04-30 | SBI5228 | IKT → OVB | Apr 30, 23:10 UTC | Apr 30, 23:20 UTC | 10m |
| 2026-04-30 | SBI6310 | BKK → IKT | Apr 30, 10:10 UTC | Apr 30, 15:50 UTC | 5h 40m |
| 2026-04-30 | SBI6309 | IKT → BKK | Apr 30, 08:15 UTC | Apr 30, 08:45 UTC | 30m |
| 2026-04-29 | SBI6311 | IKT → PKX | Apr 29, 17:50 UTC | Apr 29, 19:55 UTC | 2h 5m |
| 2026-04-29 | SBI6416 | SVX → IKT | Apr 29, 12:40 UTC | Apr 29, 12:55 UTC | 15m |
| 2026-04-29 | SBI6415 | IKT → SVX | Apr 29, 04:34 UTC | Apr 29, 11:35 UTC | 7h 1m |
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-73671 page for operator, model, and routing details .