sensors Mode-S transponder
151DAB
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73131 · BOEING 777-300ER
- Hex
- 151DAB
- Octal
- 05216653
- Decimal
- 1,383,851
- Country
- RU
- Tail
- RA-73131
- Type
- B77W
- Flights observed
- 131
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- Jul 26, 22:30 UTC
Last known position
Country allocation
The ICAO 24-bit address 151DAB 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 |
|---|---|---|---|
| AFL204 | Aeroflot Russian Airlines | 27 | 2026-07-26 |
| AFL205 | Aeroflot Russian Airlines | 17 | 2026-07-21 |
| AFL221 | Aeroflot Russian Airlines | 10 | 2026-07-26 |
| AFL1731 | - | 10 | 2026-07-16 |
| AFL220 | Aeroflot Russian Airlines | 9 | 2026-07-25 |
| AFL1727 | Aeroflot Russian Airlines | 6 | 2026-07-23 |
| AFL209 | - | 5 | 2026-07-01 |
| AFL208 | Aeroflot Russian Airlines | 5 | 2026-07-24 |
| AFL1747 | Aeroflot Russian Airlines | 5 | 2026-07-23 |
| AFL1745 | - | 4 | 2026-07-08 |
| AFL1715 | - | 4 | 2026-06-26 |
| AFL639 | - | 3 | 2026-06-30 |
| AFL638 | - | 2 | 2026-06-30 |
| AFL585 | Aeroflot Russian Airlines | 2 | 2026-04-24 |
| AFL1718 | Aeroflot Russian Airlines | 2 | 2026-06-24 |
| AFL584 | Aeroflot Russian Airlines | 1 | 2026-04-23 |
| AFL288 | Aeroflot Russian Airlines | 1 | 2026-04-18 |
| AFL255 | Aeroflot Russian Airlines | 1 | 2026-04-25 |
| AFL233 | Aeroflot Russian Airlines | 1 | 2026-04-30 |
| AFL232 | Aeroflot Russian Airlines | 1 | 2026-04-29 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | AFL204 | SVO → PKX | Jul 26, 21:45 UTC | Jul 26, 22:30 UTC | 45m |
| 2026-07-26 | AFL204 | SVO → PKX | Jul 26, 18:35 UTC | Jul 26, 18:50 UTC | 15m |
| 2026-07-26 | AFL221 | CAN → SVO | Jul 26, 12:25 UTC | Jul 26, 12:45 UTC | 20m |
| 2026-07-25 | AFL220 | SVO → CAN | Jul 25, 17:40 UTC | Jul 26, 09:10 UTC | 15h 31m |
| 2026-07-25 | AFL220 | SVO → CAN | Jul 25, 16:40 UTC | Jul 25, 16:50 UTC | 10m |
| 2026-07-24 | AFL208 | SVO → PVG | Jul 24, 20:30 UTC | Jul 25, 10:20 UTC | 13h 50m |
| 2026-07-23 | AFL1747 | UUS → SVO | Jul 23, 22:10 UTC | Jul 24, 13:55 UTC | 15h 45m |
| 2026-07-23 | AFL1727 | VVO → SVO | Jul 23, 13:05 UTC | Jul 24, 12:45 UTC | 23h 40m |
| 2026-07-23 | AFL1727 | VVO → SVO | Jul 23, 12:15 UTC | Jul 23, 22:25 UTC | 10h 10m |
| 2026-07-21 | AFL205 | PKX → SVO | Jul 21, 04:10 UTC | Jul 21, 10:20 UTC | 6h 10m |
| 2026-07-21 | AFL204 | SVO → PKX | Jul 21, 00:55 UTC | Jul 21, 01:10 UTC | 15m |
| 2026-07-20 | AFL205 | PKX → SVO | Jul 20, 04:00 UTC | Jul 20, 22:20 UTC | 18h 20m |
| 2026-07-20 | AFL204 | SVO → PKX | Jul 20, 01:10 UTC | Jul 20, 01:20 UTC | 10m |
| 2026-07-19 | AFL204 | SVO → PKX | Jul 19, 21:50 UTC | Jul 19, 22:30 UTC | 40m |
| 2026-07-18 | AFL1747 | - | Jul 18, 22:30 UTC | Jul 19, 13:20 UTC | 14h 50m |
| 2026-07-18 | AFL1709 | - | Jul 18, 15:25 UTC | Jul 18, 17:30 UTC | 2h 5m |
| 2026-07-16 | AFL1731 | PKC → SVO | Jul 16, 15:30 UTC | Jul 17, 08:00 UTC | 16h 30m |
| 2026-07-16 | AFL1731 | - | Jul 16, 06:50 UTC | Jul 17, 06:45 UTC | 23h 55m |
| 2026-07-16 | AFL1731 | - | Jul 16, 06:35 UTC | Jul 16, 15:30 UTC | 8h 55m |
| 2026-07-15 | AFL1730 | SVO → SVO | Jul 15, 14:05 UTC | Jul 15, 14:25 UTC | 20m |
| 2026-07-14 | AFL1757 | - | Jul 14, 15:05 UTC | Jul 15, 07:25 UTC | 16h 19m |
| 2026-07-14 | AFL205 | - | Jul 14, 07:15 UTC | Jul 15, 06:40 UTC | 23h 24m |
| 2026-07-14 | AFL205 | - | Jul 14, 04:10 UTC | Jul 14, 15:15 UTC | 11h 5m |
| 2026-07-14 | AFL204 | - | Jul 14, 00:45 UTC | Jul 14, 01:00 UTC | 15m |
| 2026-07-13 | AFL1019 | - | Jul 13, 14:00 UTC | Jul 13, 22:15 UTC | 8h 15m |
| 2026-07-13 | AFL1018 | - | Jul 13, 10:55 UTC | Jul 13, 11:40 UTC | 45m |
| 2026-07-11 | AFL1747 | - | Jul 11, 10:10 UTC | Jul 11, 11:30 UTC | 1h 20m |
| 2026-07-10 | AFL1747 | - | Jul 10, 12:50 UTC | Jul 11, 11:30 UTC | 22h 40m |
| 2026-07-10 | AFL1727 | - | Jul 10, 12:00 UTC | Jul 11, 10:40 UTC | 22h 40m |
| 2026-07-08 | AFL1747 | - | Jul 8, 20:00 UTC | Jul 9, 12:30 UTC | 16h 30m |
| 2026-07-08 | AFL1746 | SVO → SVO | Jul 8, 18:50 UTC | Jul 8, 19:10 UTC | 20m |
| 2026-07-08 | AFL1745 | - | Jul 8, 06:20 UTC | Jul 8, 07:40 UTC | 1h 20m |
| 2026-07-06 | AFL205 | - | Jul 6, 05:50 UTC | Jul 6, 12:20 UTC | 6h 30m |
| 2026-07-06 | AFL204 | - | Jul 6, 02:45 UTC | Jul 6, 02:55 UTC | 10m |
| 2026-07-05 | AFL204 | - | Jul 5, 23:25 UTC | Jul 6, 00:10 UTC | 45m |
| 2026-07-05 | AFL204 | - | Jul 5, 20:20 UTC | Jul 5, 20:30 UTC | 10m |
| 2026-07-05 | AFL205 | - | Jul 5, 04:05 UTC | Jul 5, 07:50 UTC | 3h 45m |
| 2026-07-05 | AFL204 | - | Jul 5, 01:00 UTC | Jul 5, 01:15 UTC | 15m |
| 2026-07-04 | AFL204 | - | Jul 4, 10:50 UTC | Jul 4, 22:30 UTC | 11h 40m |
| 2026-07-03 | AFL208 | - | Jul 3, 20:25 UTC | Jul 4, 11:30 UTC | 15h 5m |
| 2026-07-03 | AFL221 | - | Jul 3, 09:15 UTC | Jul 3, 21:10 UTC | 11h 55m |
| 2026-07-02 | AFL220 | - | Jul 2, 16:40 UTC | Jul 3, 10:05 UTC | 17h 25m |
| 2026-07-01 | AFL209 | - | Jul 1, 20:30 UTC | Jul 2, 09:45 UTC | 13h 15m |
| 2026-07-01 | AFL1755 | - | Jul 1, 01:30 UTC | Jul 1, 21:10 UTC | 19h 40m |
| 2026-06-30 | AFL639 | - | Jun 30, 06:50 UTC | Jul 1, 02:45 UTC | 19h 55m |
| 2026-06-30 | AFL639 | - | Jun 30, 05:15 UTC | Jul 1, 02:45 UTC | 21h 30m |
| 2026-06-30 | AFL639 | - | Jun 30, 02:50 UTC | Jul 1, 02:45 UTC | 23h 55m |
| 2026-06-30 | AFL638 | - | Jun 30, 02:35 UTC | Jun 30, 14:35 UTC | 12h 0m |
| 2026-06-29 | AFL638 | - | Jun 29, 07:30 UTC | Jun 30, 06:45 UTC | 23h 16m |
| 2026-06-29 | AFL205 | - | Jun 29, 04:50 UTC | Jun 30, 02:55 UTC | 22h 6m |
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-73131 page for operator, model, and routing details .