sensors Mode-S transponder
151D90
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73104 · BOEING 737-800
- Hex
- 151D90
- Octal
- 05216620
- Decimal
- 1,383,824
- Country
- RU
- Tail
- RA-73104
- Type
- B738
- Flights observed
- 78
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 151D90 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 |
|---|---|---|---|
| AFL1454 | - | 7 | 2026-07-10 |
| AFL1538 | - | 6 | 2026-07-04 |
| AFL1539 | Aeroflot Russian Airlines | 5 | 2026-06-16 |
| AFL1443 | - | 5 | 2026-06-25 |
| AFL1751 | Aeroflot Russian Airlines | 4 | 2026-05-18 |
| AFL1563 | - | 4 | 2026-06-27 |
| AFL1455 | Aeroflot Russian Airlines | 4 | 2026-05-07 |
| AFL1476 | - | 3 | 2026-07-11 |
| AFL1442 | - | 3 | 2026-06-18 |
| AFL1405 | Aeroflot Russian Airlines | 3 | 2026-06-05 |
| AFL2927 | Aeroflot Russian Airlines | 2 | 2026-05-11 |
| AFL1753 | - | 2 | 2026-07-08 |
| AFL1638 | Aeroflot Russian Airlines | 2 | 2026-05-31 |
| AFL1562 | - | 2 | 2026-06-26 |
| AFL1461 | Aeroflot Russian Airlines | 2 | 2026-05-01 |
| AFL1445 | - | 2 | 2026-07-08 |
| AFL1440 | - | 2 | 2026-07-02 |
| AFL1306 | Aeroflot Russian Airlines | 2 | 2026-05-29 |
| AFL1094 | - | 2 | 2026-07-03 |
| AFL1843 | - | 1 | 2026-06-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | AFL1460 | SVO → SVO | Jul 13, 07:20 UTC | Jul 13, 07:35 UTC | 15m |
| 2026-07-11 | AFL1476 | - | Jul 11, 19:10 UTC | Jul 12, 01:00 UTC | 5h 50m |
| 2026-07-11 | AFL1476 | SVO → SVO | Jul 11, 15:25 UTC | Jul 11, 16:05 UTC | 40m |
| 2026-07-10 | AFL1454 | - | Jul 10, 21:35 UTC | Jul 11, 03:25 UTC | 5h 50m |
| 2026-07-08 | AFL1753 | - | Jul 8, 16:05 UTC | Jul 9, 08:50 UTC | 16h 45m |
| 2026-07-08 | AFL1753 | - | Jul 8, 13:10 UTC | Jul 9, 08:50 UTC | 19h 40m |
| 2026-07-08 | AFL1445 | - | Jul 8, 08:10 UTC | Jul 9, 08:00 UTC | 23h 50m |
| 2026-07-04 | AFL1454 | - | Jul 4, 11:30 UTC | Jul 5, 04:00 UTC | 16h 30m |
| 2026-07-04 | AFL1538 | - | Jul 4, 09:30 UTC | Jul 4, 09:40 UTC | 10m |
| 2026-07-03 | AFL1094 | - | Jul 3, 06:40 UTC | Jul 3, 07:00 UTC | 20m |
| 2026-07-02 | AFL1440 | - | Jul 2, 17:50 UTC | Jul 2, 23:35 UTC | 5h 45m |
| 2026-07-02 | AFL1440 | SVO → SVO | Jul 2, 14:40 UTC | Jul 2, 14:50 UTC | 10m |
| 2026-07-02 | AFL1094 | SVO → SVO | Jul 2, 06:35 UTC | Jul 2, 06:45 UTC | 10m |
| 2026-06-30 | AFL1476 | SVO → UUD | Jun 30, 18:50 UTC | Jul 1, 00:30 UTC | 5h 40m |
| 2026-06-28 | AFL1454 | - | Jun 28, 21:55 UTC | Jun 29, 03:49 UTC | 5h 55m |
| 2026-06-27 | AFL1563 | - | Jun 27, 02:14 UTC | Jun 27, 19:05 UTC | 16h 50m |
| 2026-06-26 | AFL1562 | - | Jun 26, 04:04 UTC | Jun 27, 02:45 UTC | 22h 40m |
| 2026-06-25 | AFL1443 | - | Jun 25, 22:04 UTC | Jun 26, 04:04 UTC | 6h 0m |
| 2026-06-24 | AFL1332 | SVO → ARH | Jun 24, 17:14 UTC | Jun 24, 17:34 UTC | 20m |
| 2026-06-24 | AFL1517 | - | Jun 24, 09:24 UTC | Jun 24, 09:49 UTC | 25m |
| 2026-06-23 | AFL1402 | SVO → SVX | Jun 23, 08:35 UTC | Jun 23, 08:54 UTC | 20m |
| 2026-06-18 | AFL1442 | - | Jun 18, 22:10 UTC | Jun 18, 22:45 UTC | 35m |
| 2026-06-17 | AFL1192 | - | Jun 17, 15:25 UTC | Jun 17, 16:00 UTC | 35m |
| 2026-06-17 | AFL1843 | - | Jun 17, 12:30 UTC | Jun 17, 12:45 UTC | 15m |
| 2026-06-16 | AFL1539 | TOF → SVO | Jun 16, 12:00 UTC | Jun 16, 22:25 UTC | 10h 26m |
| 2026-06-16 | AFL1538 | - | Jun 16, 10:04 UTC | Jun 16, 10:15 UTC | 10m |
| 2026-06-15 | AFL1563 | - | Jun 15, 02:20 UTC | Jun 15, 10:15 UTC | 7h 55m |
| 2026-06-14 | AFL1562 | - | Jun 14, 08:05 UTC | Jun 15, 07:40 UTC | 23h 35m |
| 2026-06-14 | AFL1443 | - | Jun 14, 07:35 UTC | Jun 15, 03:00 UTC | 19h 24m |
| 2026-06-14 | AFL1443 | - | Jun 14, 00:15 UTC | Jun 14, 08:15 UTC | 8h 0m |
| 2026-06-12 | AFL1445 | IKT → SVO | Jun 12, 14:15 UTC | Jun 12, 14:50 UTC | 35m |
| 2026-06-08 | AFL1563 | IKT → SVO | Jun 8, 00:05 UTC | Jun 8, 10:15 UTC | 10h 10m |
| 2026-06-07 | AFL1264 | SVO → KRR | Jun 7, 11:20 UTC | Jun 7, 11:40 UTC | 20m |
| 2026-06-06 | AFL1454 | SVO → UUD | Jun 6, 11:49 UTC | Jun 7, 04:00 UTC | 16h 10m |
| 2026-06-05 | AFL1405 | SVX → SVO | Jun 5, 16:50 UTC | Jun 6, 09:50 UTC | 17h 0m |
| 2026-06-04 | AFL1156 | SVO → KRR | Jun 4, 09:20 UTC | Jun 4, 09:50 UTC | 30m |
| 2026-06-02 | AFL1568 | SVO → TJM | Jun 2, 23:15 UTC | Jun 2, 23:35 UTC | 20m |
| 2026-05-31 | AFL1638 | SVO → OMS | May 31, 22:10 UTC | May 31, 22:20 UTC | 10m |
| 2026-05-29 | AFL1306 | SVO → OVB | May 29, 23:20 UTC | May 29, 23:50 UTC | 30m |
| 2026-05-29 | AFL1306 | SVO → OVB | May 29, 22:25 UTC | May 29, 22:45 UTC | 20m |
| 2026-05-29 | AFL1246 | SVO → REN | May 29, 15:40 UTC | May 29, 16:10 UTC | 30m |
| 2026-05-28 | AFL1490 | SVO → KJA | May 28, 09:10 UTC | May 28, 09:35 UTC | 25m |
| 2026-05-25 | AFL1082 | SVO → GDZ | May 25, 10:40 UTC | May 25, 11:10 UTC | 30m |
| 2026-05-23 | AFL1639 | OMS → SVO | May 23, 12:25 UTC | May 24, 04:25 UTC | 16h 1m |
| 2026-05-22 | AFL1563 | IKT → SVO | May 22, 10:10 UTC | May 22, 10:45 UTC | 35m |
| 2026-05-18 | AFL1454 | SVO → UUD | May 18, 22:00 UTC | May 18, 22:25 UTC | 25m |
| 2026-05-18 | AFL1454 | SVO → UUD | May 18, 18:30 UTC | May 18, 18:50 UTC | 20m |
| 2026-05-18 | AFL1751 | YKS → SVO | May 18, 09:05 UTC | May 18, 09:45 UTC | 40m |
| 2026-05-14 | AFL1442 | SVO → IKT | May 14, 22:05 UTC | May 15, 06:50 UTC | 8h 45m |
| 2026-05-14 | AFL1442 | SVO → IKT | May 14, 10:05 UTC | May 15, 06:50 UTC | 20h 45m |
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-73104 page for operator, model, and routing details .