sensors Mode-S transponder
151D94
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73108 · BOEING 737-800
- Hex
- 151D94
- Octal
- 05216624
- Decimal
- 1,383,828
- Country
- RU
- Tail
- RA-73108
- Type
- B738
- Flights observed
- 129
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 11h ago
Last known position
Country allocation
The ICAO 24-bit address 151D94 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
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| AFL423 | Aeroflot Russian Airlines | 16 | 2026-05-21 |
| AFL909 | Aeroflot Russian Airlines | 9 | 2026-04-25 |
| AFL427 | Aeroflot Russian Airlines | 9 | 2026-05-03 |
| AFL426 | Aeroflot Russian Airlines | 6 | 2026-05-03 |
| AFL913 | Aeroflot Russian Airlines | 5 | 2026-04-26 |
| AFL912 | Aeroflot Russian Airlines | 5 | 2026-04-25 |
| AFL802 | Aeroflot Russian Airlines | 5 | 2026-05-16 |
| AFL428 | Aeroflot Russian Airlines | 5 | 2026-05-14 |
| AFL2123 | Aeroflot Russian Airlines | 5 | 2026-05-22 |
| AFL425 | Aeroflot Russian Airlines | 4 | 2026-05-24 |
| AFL2124 | Aeroflot Russian Airlines | 4 | 2026-05-05 |
| AFL2122 | Aeroflot Russian Airlines | 4 | 2026-05-22 |
| AFL677 | Aeroflot Russian Airlines | 3 | 2026-05-17 |
| AFL2149 | Aeroflot Russian Airlines | 3 | 2026-05-28 |
| AFL2148 | Aeroflot Russian Airlines | 3 | 2026-05-28 |
| AFL2146 | Aeroflot Russian Airlines | 3 | 2026-05-26 |
| AFL1437 | - | 3 | 2026-04-13 |
| AFL917 | Aeroflot Russian Airlines | 2 | 2026-05-06 |
| AFL803 | Aeroflot Russian Airlines | 2 | 2026-05-17 |
| AFL676 | Aeroflot Russian Airlines | 2 | 2026-05-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | AFL2121 | BJV → SVO | May 29, 11:25 UTC | May 29, 12:00 UTC | 35m |
| 2026-05-28 | AFL1865 | EVN → SVO | May 28, 18:50 UTC | May 28, 19:15 UTC | 25m |
| 2026-05-28 | AFL2149 | AYT → SVO | May 28, 06:10 UTC | May 28, 07:55 UTC | 1h 45m |
| 2026-05-28 | AFL2148 | SVO → AYT | May 28, 03:35 UTC | May 28, 04:05 UTC | 30m |
| 2026-05-26 | AFL2147 | AYT → SVO | May 26, 15:05 UTC | May 26, 17:09 UTC | 2h 5m |
| 2026-05-26 | AFL2146 | SVO → AYT | May 26, 13:04 UTC | May 26, 13:24 UTC | 20m |
| 2026-05-25 | AFL2132 | SVO → IST | May 25, 22:40 UTC | May 25, 22:49 UTC | 10m |
| 2026-05-25 | AFL2132 | SVO → IST | May 25, 18:45 UTC | May 25, 19:40 UTC | 54m |
| 2026-05-25 | AFL2121 | BJV → SVO | May 25, 11:15 UTC | May 25, 13:30 UTC | 2h 15m |
| 2026-05-24 | AFL425 | HRG → SVO | May 24, 15:05 UTC | May 25, 09:45 UTC | 18h 40m |
| 2026-05-24 | AFL425 | HRG → SVO | May 24, 14:20 UTC | May 25, 09:45 UTC | 19h 25m |
| 2026-05-24 | AFL424 | SVO → HRG | May 24, 03:05 UTC | May 24, 19:35 UTC | 16h 30m |
| 2026-05-23 | AFL2147 | AYT → SVO | May 23, 15:15 UTC | May 23, 17:05 UTC | 1h 50m |
| 2026-05-23 | AFL2146 | SVO → AYT | May 23, 13:15 UTC | May 23, 13:35 UTC | 20m |
| 2026-05-22 | AFL2123 | DLM → SVO | May 22, 15:35 UTC | May 22, 17:40 UTC | 2h 5m |
| 2026-05-22 | AFL2122 | SVO → DLM | May 22, 12:30 UTC | May 22, 13:30 UTC | 1h 0m |
| 2026-05-21 | AFL423 | HRG → SVO | May 21, 15:10 UTC | May 22, 13:30 UTC | 22h 20m |
| 2026-05-21 | AFL423 | HRG → SVO | May 21, 13:45 UTC | May 22, 12:50 UTC | 23h 5m |
| 2026-05-20 | AFL423 | HRG → SVO | May 20, 21:10 UTC | May 21, 16:50 UTC | 19h 40m |
| 2026-05-20 | AFL423 | HRG → SVO | May 20, 19:05 UTC | May 21, 16:50 UTC | 21h 45m |
| 2026-05-20 | AFL423 | HRG → SVO | May 20, 17:50 UTC | May 21, 16:50 UTC | 23h 0m |
| 2026-05-20 | AFL419 | SSH → SVO | May 20, 04:20 UTC | May 20, 22:35 UTC | 18h 16m |
| 2026-05-19 | AFL2127 | AYT → SVO | May 19, 15:05 UTC | May 20, 09:05 UTC | 18h 1m |
| 2026-05-19 | AFL2127 | AYT → SVO | May 19, 14:10 UTC | May 20, 09:05 UTC | 18h 56m |
| 2026-05-17 | AFL803 | SVO → KZN | May 17, 14:45 UTC | May 17, 15:05 UTC | 20m |
| 2026-05-17 | AFL677 | AYT → KRR | May 17, 07:30 UTC | May 17, 07:45 UTC | 15m |
| 2026-05-16 | AFL802 | KZN → SVO | May 16, 16:35 UTC | May 17, 06:05 UTC | 13h 30m |
| 2026-05-16 | AFL676 | KRR → AYT | May 16, 14:55 UTC | May 16, 15:16 UTC | 20m |
| 2026-05-16 | AFL677 | AYT → KRR | May 16, 09:10 UTC | May 16, 10:40 UTC | 1h 30m |
| 2026-05-16 | AFL802 | KZN → SVO | May 16, 05:05 UTC | May 16, 05:25 UTC | 20m |
| 2026-05-16 | AFL802 | KZN → SVO | May 16, 01:05 UTC | May 16, 04:25 UTC | 3h 20m |
| 2026-05-15 | AFL802 | KZN → SVO | May 15, 07:15 UTC | May 16, 04:25 UTC | 21h 9m |
| 2026-05-14 | AFL428 | SVO → SSH | May 14, 18:40 UTC | May 15, 05:10 UTC | 10h 30m |
| 2026-05-14 | AFL2149 | AYT → SVO | May 14, 06:20 UTC | May 14, 08:50 UTC | 2h 30m |
| 2026-05-14 | AFL2148 | SVO → AYT | May 14, 03:50 UTC | May 14, 04:10 UTC | 20m |
| 2026-05-13 | AFL423 | HRG → SVO | May 13, 09:40 UTC | May 13, 14:55 UTC | 5h 15m |
| 2026-05-12 | AFL423 | HRG → SVO | May 12, 15:05 UTC | May 13, 14:55 UTC | 23h 50m |
| 2026-05-12 | AFL803 | SVO → KZN | May 12, 13:25 UTC | May 13, 11:00 UTC | 21h 35m |
| 2026-05-12 | AFL676 | KRR → AYT | May 12, 11:25 UTC | May 12, 11:50 UTC | 25m |
| 2026-05-12 | AFL677 | AYT → KRR | May 12, 05:50 UTC | May 12, 07:20 UTC | 1h 30m |
| 2026-05-12 | AFL802 | KZN → SVO | May 12, 03:25 UTC | May 12, 03:45 UTC | 20m |
| 2026-05-11 | AFL2149 | AYT → SVO | May 11, 06:00 UTC | May 11, 08:20 UTC | 2h 20m |
| 2026-05-11 | AFL2148 | SVO → AYT | May 11, 04:05 UTC | May 11, 04:20 UTC | 15m |
| 2026-05-10 | AFL2703 | AYT → SVO | May 10, 14:34 UTC | May 11, 03:20 UTC | 12h 45m |
| 2026-05-10 | AFL2702 | SVO → DLM | May 10, 12:25 UTC | May 10, 12:54 UTC | 30m |
| 2026-05-10 | AFL2702 | SVO → DLM | May 10, 11:15 UTC | May 10, 11:50 UTC | 35m |
| 2026-05-09 | AFL2123 | DLM → SVO | May 9, 20:20 UTC | May 9, 20:55 UTC | 35m |
| 2026-05-09 | AFL2123 | DLM → SVO | May 9, 15:35 UTC | May 9, 17:40 UTC | 2h 5m |
| 2026-05-09 | AFL2122 | SVO → DLM | May 9, 09:25 UTC | May 9, 13:30 UTC | 4h 5m |
| 2026-05-08 | AFL2122 | SVO → DLM | May 8, 16:05 UTC | May 9, 13:30 UTC | 21h 25m |
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-73108 page for operator, model, and routing details .