sensors Mode-S transponder
151DA2
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73122 · BOEING 737-800
- Hex
- 151DA2
- Octal
- 05216642
- Decimal
- 1,383,842
- Country
- RU
- Tail
- RA-73122
- Type
- B738
- Flights observed
- 80
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 151DA2 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 |
|---|---|---|---|
| AFL1863 | Aeroflot Russian Airlines | 6 | 2026-05-17 |
| AFL400 | Aeroflot Russian Airlines | 5 | 2026-05-02 |
| AFL401 | Aeroflot Russian Airlines | 4 | 2026-05-03 |
| AFL2139 | Aeroflot Russian Airlines | 4 | 2026-06-01 |
| AFL2138 | Aeroflot Russian Airlines | 4 | 2026-06-01 |
| AFL2122 | Aeroflot Russian Airlines | 4 | 2026-05-26 |
| AFL1967 | Aeroflot Russian Airlines | 4 | 2026-05-26 |
| AFL430 | Aeroflot Russian Airlines | 3 | 2026-05-09 |
| AFL1563 | Aeroflot Russian Airlines | 3 | 2026-05-07 |
| AFL1562 | Aeroflot Russian Airlines | 3 | 2026-05-06 |
| AFL2132 | Aeroflot Russian Airlines | 2 | 2026-05-08 |
| AFL2123 | Aeroflot Russian Airlines | 2 | 2026-05-26 |
| AFL1990 | Aeroflot Russian Airlines | 2 | 2026-05-11 |
| AFL1966 | Aeroflot Russian Airlines | 2 | 2026-05-06 |
| AFL1862 | Aeroflot Russian Airlines | 2 | 2026-04-24 |
| AFL1486 | Aeroflot Russian Airlines | 2 | 2026-05-25 |
| AFL1415 | Aeroflot Russian Airlines | 2 | 2026-04-30 |
| AFL1404 | Aeroflot Russian Airlines | 2 | 2026-05-18 |
| AFL1243 | Aeroflot Russian Airlines | 2 | 2026-05-10 |
| AFL439 | Aeroflot Russian Airlines | 1 | 2026-05-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-01 | AFL2139 | IST → SVO | Jun 1, 06:25 UTC | Jun 1, 06:55 UTC | 30m |
| 2026-06-01 | AFL2138 | SVO → IST | Jun 1, 01:15 UTC | Jun 1, 01:30 UTC | 15m |
| 2026-05-30 | AFL1539 | TOF → SVO | May 30, 11:30 UTC | May 30, 15:55 UTC | 4h 25m |
| 2026-05-30 | AFL1538 | SVO → TOF | May 30, 09:25 UTC | May 30, 09:45 UTC | 20m |
| 2026-05-29 | AFL1869 | EVN → SVO | May 29, 21:00 UTC | May 29, 21:25 UTC | 25m |
| 2026-05-29 | AFL1868 | SVO → EVN | May 29, 16:10 UTC | May 29, 16:40 UTC | 30m |
| 2026-05-28 | AFL2173 | IST → SVO | May 28, 12:30 UTC | May 28, 13:00 UTC | 30m |
| 2026-05-27 | AFL2121 | BJV → SVO | May 27, 11:05 UTC | May 27, 11:30 UTC | 25m |
| 2026-05-26 | AFL2123 | DLM → SVO | May 26, 14:55 UTC | May 27, 09:35 UTC | 18h 41m |
| 2026-05-26 | AFL2122 | SVO → DLM | May 26, 12:45 UTC | May 26, 13:04 UTC | 20m |
| 2026-05-26 | AFL2122 | SVO → DLM | May 26, 08:34 UTC | May 26, 09:04 UTC | 30m |
| 2026-05-26 | AFL1967 | EVN → SVO | May 26, 03:05 UTC | May 26, 03:35 UTC | 30m |
| 2026-05-25 | AFL1487 | KJA → SVO | May 25, 13:25 UTC | May 25, 13:35 UTC | 10m |
| 2026-05-25 | AFL1486 | SVO → KJA | May 25, 07:15 UTC | May 25, 07:30 UTC | 15m |
| 2026-05-24 | AFL1491 | KJA → SVO | May 24, 10:05 UTC | May 24, 18:40 UTC | 8h 35m |
| 2026-05-24 | AFL1490 | SVO → KJA | May 24, 09:05 UTC | May 24, 09:30 UTC | 25m |
| 2026-05-24 | AFL1967 | EVN → SVO | May 24, 03:25 UTC | May 24, 03:50 UTC | 25m |
| 2026-05-22 | AFL1443 | IKT → SVO | May 22, 12:45 UTC | May 23, 06:55 UTC | 18h 10m |
| 2026-05-19 | AFL1967 | EVN → SVO | May 19, 03:10 UTC | May 19, 15:40 UTC | 12h 30m |
| 2026-05-18 | AFL1404 | SVO → SVX | May 18, 14:05 UTC | May 18, 14:20 UTC | 15m |
| 2026-05-18 | AFL1404 | SVO → SVX | May 18, 12:45 UTC | May 18, 13:05 UTC | 20m |
| 2026-05-17 | AFL1863 | EVN → SVO | May 17, 17:10 UTC | May 17, 18:10 UTC | 1h 0m |
| 2026-05-17 | AFL2139 | IST → SVO | May 17, 06:20 UTC | May 17, 06:30 UTC | 10m |
| 2026-05-16 | AFL439 | SSH → SVO | May 16, 13:11 UTC | May 16, 16:55 UTC | 3h 45m |
| 2026-05-15 | AFL438 | SVO → SSH | May 15, 19:05 UTC | May 16, 10:50 UTC | 15h 46m |
| 2026-05-15 | AFL2139 | IST → SVO | May 15, 07:10 UTC | May 15, 08:45 UTC | 1h 35m |
| 2026-05-14 | AFL1486 | SVO → KJA | May 14, 07:10 UTC | May 14, 07:25 UTC | 15m |
| 2026-05-12 | AFL1467 | SVX → SVO | May 12, 03:25 UTC | May 12, 22:15 UTC | 18h 50m |
| 2026-05-11 | AFL1991 | EVN → SVO | May 11, 15:55 UTC | May 12, 04:15 UTC | 12h 21m |
| 2026-05-11 | AFL1990 | SVO → EVN | May 11, 14:00 UTC | May 11, 14:10 UTC | 10m |
| 2026-05-11 | AFL1990 | SVO → EVN | May 11, 11:10 UTC | May 11, 12:05 UTC | 55m |
| 2026-05-11 | AFL1639 | OMS → SVO | May 11, 03:50 UTC | May 11, 04:25 UTC | 35m |
| 2026-05-10 | AFL1243 | REN → SVO | May 10, 08:35 UTC | May 10, 09:00 UTC | 25m |
| 2026-05-09 | AFL431 | SSH → SVO | May 9, 18:00 UTC | May 10, 07:45 UTC | 13h 45m |
| 2026-05-09 | AFL430 | SVO → SSH | May 9, 01:35 UTC | May 9, 16:05 UTC | 14h 30m |
| 2026-05-08 | AFL2132 | SVO → IST | May 8, 21:40 UTC | May 8, 22:50 UTC | 1h 10m |
| 2026-05-08 | AFL2132 | SVO → IST | May 8, 03:09 UTC | May 8, 22:50 UTC | 19h 40m |
| 2026-05-07 | AFL1563 | IKT → SVO | May 7, 07:20 UTC | May 8, 03:35 UTC | 20h 15m |
| 2026-05-06 | AFL1562 | SVO → IKT | May 6, 23:40 UTC | May 7, 07:55 UTC | 8h 15m |
| 2026-05-06 | AFL2123 | DLM → SVO | May 6, 14:30 UTC | May 6, 16:30 UTC | 2h 0m |
| 2026-05-06 | AFL2122 | SVO → DLM | May 6, 12:30 UTC | May 6, 12:50 UTC | 20m |
| 2026-05-06 | AFL2122 | SVO → DLM | May 6, 08:15 UTC | May 6, 08:45 UTC | 30m |
| 2026-05-06 | AFL1967 | EVN → SVO | May 6, 03:20 UTC | May 6, 03:50 UTC | 30m |
| 2026-05-06 | AFL1966 | SVO → EVN | May 6, 01:25 UTC | May 6, 01:35 UTC | 10m |
| 2026-05-05 | AFL1966 | SVO → EVN | May 5, 06:20 UTC | May 6, 01:35 UTC | 19h 15m |
| 2026-05-04 | AFL1243 | REN → SVO | May 4, 11:25 UTC | May 4, 11:40 UTC | 15m |
| 2026-05-03 | AFL401 | CAI → SVO | May 3, 14:35 UTC | May 4, 11:40 UTC | 21h 5m |
| 2026-05-03 | AFL401 | CAI → SVO | May 3, 14:20 UTC | May 4, 11:40 UTC | 21h 20m |
| 2026-05-02 | AFL400 | SVO → CAI | May 2, 18:25 UTC | May 3, 12:15 UTC | 17h 49m |
| 2026-05-02 | AFL400 | SVO → CAI | May 2, 14:45 UTC | May 3, 12:15 UTC | 21h 29m |
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-73122 page for operator, model, and routing details .