sensors Mode-S transponder
151D9B
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73115 · BOEING 737-800
- Hex
- 151D9B
- Octal
- 05216633
- Decimal
- 1,383,835
- Country
- RU
- Tail
- RA-73115
- Type
- B738
- Flights observed
- 240
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- Jul 26, 15:35 UTC
Current position
Country allocation
The ICAO 24-bit address 151D9B 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 |
|---|---|---|---|
| AFL905 | - | 19 | 2026-07-05 |
| AFL425 | - | 16 | 2026-06-28 |
| AFL901 | - | 13 | 2026-07-04 |
| AFL2120 | - | 9 | 2026-07-09 |
| AFL900 | - | 8 | 2026-07-01 |
| AFL676 | Aeroflot Russian Airlines | 8 | 2026-07-26 |
| AFL431 | - | 8 | 2026-07-19 |
| AFL423 | Aeroflot Russian Airlines | 8 | 2026-05-02 |
| AFL802 | Aeroflot Russian Airlines | 7 | 2026-07-26 |
| AFL2149 | Aeroflot Russian Airlines | 7 | 2026-07-25 |
| AFL803 | Aeroflot Russian Airlines | 6 | 2026-07-26 |
| AFL2121 | - | 6 | 2026-07-09 |
| AFL904 | - | 5 | 2026-06-30 |
| AFL429 | Aeroflot Russian Airlines | 5 | 2026-07-18 |
| AFL427 | - | 5 | 2026-06-27 |
| AFL426 | - | 5 | 2026-06-27 |
| AFL422 | - | 5 | 2026-06-23 |
| AFL2146 | Aeroflot Russian Airlines | 5 | 2026-05-09 |
| AFL2122 | - | 5 | 2026-07-10 |
| AFL677 | - | 4 | 2026-06-25 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | AFL803 | SVO → KZN | Jul 26, 13:45 UTC | Jul 26, 15:35 UTC | 1h 50m |
| 2026-07-26 | AFL676 | KRR → AYT | Jul 26, 06:10 UTC | Jul 26, 12:15 UTC | 6h 6m |
| 2026-07-26 | AFL802 | KZN → SVO | Jul 26, 03:20 UTC | Jul 26, 03:50 UTC | 30m |
| 2026-07-25 | AFL1548 | SVO → OVB | Jul 25, 16:05 UTC | Jul 25, 16:20 UTC | 15m |
| 2026-07-25 | AFL2149 | AYT → SVO | Jul 25, 05:55 UTC | Jul 25, 07:35 UTC | 1h 40m |
| 2026-07-24 | AFL2161 | - | Jul 24, 16:50 UTC | Jul 25, 04:30 UTC | 11h 40m |
| 2026-07-24 | AFL2160 | - | Jul 24, 14:35 UTC | Jul 24, 15:10 UTC | 35m |
| 2026-07-23 | AFL1967 | EVN → SVO | Jul 23, 03:30 UTC | Jul 23, 03:55 UTC | 25m |
| 2026-07-22 | AFL68 | SVO → SVO | Jul 22, 17:25 UTC | Jul 22, 17:50 UTC | 25m |
| 2026-07-21 | AFL2159 | - | Jul 21, 14:55 UTC | Jul 22, 04:35 UTC | 13h 40m |
| 2026-07-21 | AFL2158 | SVO → AYT | Jul 21, 12:55 UTC | Jul 21, 13:25 UTC | 30m |
| 2026-07-19 | AFL431 | - | Jul 19, 14:50 UTC | Jul 20, 09:55 UTC | 19h 5m |
| 2026-07-19 | AFL431 | - | Jul 19, 14:20 UTC | Jul 20, 09:55 UTC | 19h 35m |
| 2026-07-18 | AFL429 | SSH → SVO | Jul 18, 18:50 UTC | Jul 19, 18:45 UTC | 23h 55m |
| 2026-07-18 | AFL429 | SSH → SVO | Jul 18, 17:55 UTC | Jul 19, 15:40 UTC | 21h 45m |
| 2026-07-18 | AFL916 | - | Jul 18, 07:45 UTC | Jul 18, 15:45 UTC | 8h 0m |
| 2026-07-18 | AFL428 | SVO → SSH | Jul 18, 04:35 UTC | Jul 18, 05:55 UTC | 1h 20m |
| 2026-07-17 | AFL1865 | - | Jul 17, 21:39 UTC | Jul 17, 22:29 UTC | 50m |
| 2026-07-17 | AFL1865 | - | Jul 17, 19:09 UTC | Jul 17, 19:30 UTC | 20m |
| 2026-07-16 | AFL424 | - | Jul 16, 02:55 UTC | Jul 16, 19:50 UTC | 16h 55m |
| 2026-07-15 | AFL2125 | - | Jul 15, 13:05 UTC | Jul 15, 14:50 UTC | 1h 45m |
| 2026-07-15 | AFL2124 | - | Jul 15, 10:40 UTC | Jul 15, 11:25 UTC | 45m |
| 2026-07-14 | AFL2125 | - | Jul 14, 13:15 UTC | Jul 14, 15:00 UTC | 1h 45m |
| 2026-07-14 | AFL2124 | - | Jul 14, 10:45 UTC | Jul 14, 11:25 UTC | 40m |
| 2026-07-14 | AFL1569 | - | Jul 14, 03:50 UTC | Jul 14, 04:00 UTC | 10m |
| 2026-07-13 | AFL1568 | SVO → SVO | Jul 13, 22:15 UTC | Jul 13, 22:35 UTC | 20m |
| 2026-07-13 | AFL2159 | - | Jul 13, 15:00 UTC | Jul 13, 16:45 UTC | 1h 45m |
| 2026-07-12 | AFL431 | - | Jul 12, 20:45 UTC | Jul 13, 13:05 UTC | 16h 20m |
| 2026-07-12 | AFL431 | - | Jul 12, 16:50 UTC | Jul 13, 13:05 UTC | 20h 15m |
| 2026-07-12 | AFL431 | - | Jul 12, 04:50 UTC | Jul 12, 23:25 UTC | 18h 35m |
| 2026-07-12 | AFL431 | - | Jul 12, 03:50 UTC | Jul 12, 23:25 UTC | 19h 35m |
| 2026-07-12 | AFL2128 | - | Jul 12, 01:50 UTC | Jul 12, 02:30 UTC | 40m |
| 2026-07-11 | AFL2128 | SVO → SVO | Jul 11, 21:55 UTC | Jul 11, 22:15 UTC | 20m |
| 2026-07-11 | AFL2159 | - | Jul 11, 15:05 UTC | Jul 11, 16:45 UTC | 1h 40m |
| 2026-07-11 | AFL2158 | - | Jul 11, 13:05 UTC | Jul 11, 13:55 UTC | 50m |
| 2026-07-11 | AFL2158 | SVO → SVO | Jul 11, 08:40 UTC | Jul 11, 09:10 UTC | 30m |
| 2026-07-10 | AFL2123 | - | Jul 10, 14:45 UTC | Jul 10, 15:15 UTC | 30m |
| 2026-07-10 | AFL2122 | - | Jul 10, 01:10 UTC | Jul 10, 13:15 UTC | 12h 5m |
| 2026-07-09 | AFL2121 | - | Jul 9, 11:15 UTC | Jul 9, 13:15 UTC | 2h 0m |
| 2026-07-09 | AFL2120 | - | Jul 9, 07:45 UTC | Jul 9, 09:40 UTC | 1h 55m |
| 2026-07-09 | AFL2120 | SVO → SVO | Jul 9, 05:00 UTC | Jul 9, 05:25 UTC | 25m |
| 2026-07-08 | AFL419 | - | Jul 8, 17:35 UTC | Jul 8, 20:25 UTC | 2h 50m |
| 2026-07-08 | AFL917 | - | Jul 8, 07:35 UTC | Jul 8, 15:35 UTC | 8h 0m |
| 2026-07-07 | AFL2125 | - | Jul 7, 13:05 UTC | Jul 8, 05:35 UTC | 16h 30m |
| 2026-07-07 | AFL2124 | - | Jul 7, 11:20 UTC | Jul 7, 11:35 UTC | 15m |
| 2026-07-05 | AFL905 | - | Jul 5, 10:20 UTC | Jul 5, 12:50 UTC | 2h 30m |
| 2026-07-04 | AFL901 | - | Jul 4, 10:50 UTC | Jul 5, 10:45 UTC | 23h 55m |
| 2026-07-04 | AFL901 | - | Jul 4, 09:00 UTC | Jul 4, 11:45 UTC | 2h 45m |
| 2026-07-03 | AFL905 | - | Jul 3, 10:50 UTC | Jul 4, 06:40 UTC | 19h 50m |
| 2026-07-03 | AFL905 | - | Jul 3, 10:25 UTC | Jul 4, 06:40 UTC | 20h 15m |
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-73115 page for operator, model, and routing details .