sensors Mode-S transponder
151FFE
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73726 · AIRBUS A-321
- Hex
- 151FFE
- Octal
- 05217776
- Decimal
- 1,384,446
- Country
- RU
- Tail
- RA-73726
- Type
- A321
- Flights observed
- 76
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 151FFE 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 |
|---|---|---|---|
| AFL615 | Aeroflot Russian Airlines | 3 | 2026-05-26 |
| AFL2147 | Aeroflot Russian Airlines | 3 | 2026-07-07 |
| AFL1860 | Aeroflot Russian Airlines | 3 | 2026-05-26 |
| AFL1485 | - | 3 | 2026-07-06 |
| AFL1008 | - | 3 | 2026-07-11 |
| AFL2145 | Aeroflot Russian Airlines | 2 | 2026-06-29 |
| AFL1975 | Aeroflot Russian Airlines | 2 | 2026-04-19 |
| AFL1865 | Aeroflot Russian Airlines | 2 | 2026-06-20 |
| AFL1861 | Aeroflot Russian Airlines | 2 | 2026-05-12 |
| AFL1486 | Aeroflot Russian Airlines | 2 | 2026-04-15 |
| AFL1457 | Aeroflot Russian Airlines | 2 | 2026-04-19 |
| AFL1456 | Aeroflot Russian Airlines | 2 | 2026-04-19 |
| AFL1417 | Aeroflot Russian Airlines | 2 | 2026-05-01 |
| AFL1219 | Aeroflot Russian Airlines | 2 | 2026-04-25 |
| AFL1011 | Aeroflot Russian Airlines | 2 | 2026-04-17 |
| AFL1009 | Aeroflot Russian Airlines | 2 | 2026-05-28 |
| AFL1003 | - | 2 | 2026-06-27 |
| ALL1860 | - | 1 | 2026-04-30 |
| AFL614 | - | 1 | 2026-04-18 |
| AFL2171 | Aeroflot Russian Airlines | 1 | 2026-06-03 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-11 | AFL1008 | - | Jul 11, 19:50 UTC | Jul 11, 20:15 UTC | 25m |
| 2026-07-10 | AFL1458 | - | Jul 10, 20:35 UTC | Jul 10, 20:50 UTC | 15m |
| 2026-07-09 | AFL2133 | - | Jul 9, 01:10 UTC | Jul 9, 01:40 UTC | 30m |
| 2026-07-07 | AFL2147 | AYT → SVO | Jul 7, 16:15 UTC | Jul 7, 17:50 UTC | 1h 35m |
| 2026-07-07 | AFL2146 | - | Jul 7, 14:20 UTC | Jul 7, 14:40 UTC | 20m |
| 2026-07-06 | AFL1485 | - | Jul 6, 00:55 UTC | Jul 6, 04:00 UTC | 3h 5m |
| 2026-06-29 | AFL2145 | AYT → SVO | Jun 29, 17:45 UTC | Jun 29, 18:05 UTC | 20m |
| 2026-06-27 | AFL1003 | - | Jun 27, 11:04 UTC | Jun 27, 12:19 UTC | 1h 15m |
| 2026-06-23 | AFL1007 | KGD → SVO | Jun 23, 19:34 UTC | Jun 23, 20:59 UTC | 1h 25m |
| 2026-06-23 | AFL1006 | SVO → KGD | Jun 23, 17:20 UTC | Jun 23, 17:50 UTC | 30m |
| 2026-06-22 | AFL1082 | SVO → GDZ | Jun 22, 10:55 UTC | Jun 22, 11:44 UTC | 50m |
| 2026-06-22 | AFL1429 | - | Jun 22, 07:10 UTC | Jun 22, 07:19 UTC | 10m |
| 2026-06-21 | AFL2147 | AYT → SVO | Jun 21, 15:25 UTC | Jun 21, 17:05 UTC | 1h 40m |
| 2026-06-20 | AFL1865 | EVN → SVO | Jun 20, 18:49 UTC | Jun 20, 19:15 UTC | 25m |
| 2026-06-19 | AFL025 | - | Jun 19, 19:14 UTC | Jun 19, 19:29 UTC | 15m |
| 2026-06-18 | AFL1322 | SVO → MMK | Jun 18, 17:35 UTC | Jun 18, 19:00 UTC | 1h 25m |
| 2026-06-14 | AFL1485 | - | Jun 14, 04:05 UTC | Jun 14, 20:45 UTC | 16h 40m |
| 2026-06-13 | AFL1484 | - | Jun 13, 21:55 UTC | Jun 14, 02:00 UTC | 4h 5m |
| 2026-06-07 | AFL2143 | AYT → SVO | Jun 7, 11:15 UTC | Jun 7, 11:40 UTC | 25m |
| 2026-06-06 | AFL2145 | AYT → SVO | Jun 6, 18:29 UTC | Jun 6, 18:50 UTC | 20m |
| 2026-06-06 | AFL2144 | SVO → AYT | Jun 6, 16:14 UTC | Jun 6, 16:39 UTC | 25m |
| 2026-06-05 | AFL2147 | AYT → SVO | Jun 5, 15:20 UTC | Jun 5, 17:45 UTC | 2h 25m |
| 2026-06-04 | AFL1019 | KGD → SVO | Jun 4, 12:55 UTC | Jun 4, 14:40 UTC | 1h 45m |
| 2026-06-04 | AFL1018 | SVO → KGD | Jun 4, 09:55 UTC | Jun 4, 11:10 UTC | 1h 15m |
| 2026-06-03 | AFL1306 | SVO → OVB | Jun 3, 23:15 UTC | Jun 3, 23:35 UTC | 20m |
| 2026-06-03 | AFL2171 | IST → SVO | Jun 3, 05:05 UTC | Jun 3, 05:35 UTC | 30m |
| 2026-06-03 | AFL2170 | SVO → IST | Jun 3, 02:25 UTC | Jun 3, 02:45 UTC | 20m |
| 2026-06-02 | AFL1123 | AER → SVO | Jun 2, 15:55 UTC | Jun 2, 16:25 UTC | 30m |
| 2026-06-02 | AFL1122 | SVO → AER | Jun 2, 11:35 UTC | Jun 2, 11:55 UTC | 20m |
| 2026-06-01 | AFL1947 | ALA → SVO | Jun 1, 15:30 UTC | Jun 1, 15:55 UTC | 25m |
| 2026-05-29 | AFL1882 | SVO → FRU | May 29, 18:55 UTC | May 29, 19:25 UTC | 30m |
| 2026-05-29 | AFL1412 | SVO → SVX | May 29, 10:15 UTC | May 29, 10:50 UTC | 35m |
| 2026-05-28 | AFL1009 | KGD → SVO | May 28, 01:45 UTC | May 28, 03:05 UTC | 1h 20m |
| 2026-05-27 | AFL1008 | SVO → KGD | May 27, 08:25 UTC | May 27, 19:40 UTC | 11h 15m |
| 2026-05-27 | AFL1383 | HMA → SVO | May 27, 03:20 UTC | May 27, 03:39 UTC | 20m |
| 2026-05-26 | AFL615 | EVN → KRR | May 26, 11:05 UTC | May 26, 11:44 UTC | 40m |
| 2026-05-26 | AFL1860 | SVO → EVN | May 26, 08:34 UTC | May 26, 08:54 UTC | 20m |
| 2026-05-25 | AFL1125 | AER → SVO | May 25, 20:34 UTC | May 25, 21:04 UTC | 30m |
| 2026-05-24 | AFL1128 | SVO → AER | May 24, 16:00 UTC | May 24, 16:25 UTC | 25m |
| 2026-05-21 | AFL1008 | SVO → KGD | May 21, 19:50 UTC | May 21, 20:25 UTC | 35m |
| 2026-05-18 | AFL1001 | KGD → SVO | May 18, 07:30 UTC | May 18, 13:25 UTC | 5h 55m |
| 2026-05-18 | AFL1000 | SVO → KGD | May 18, 03:40 UTC | May 18, 05:50 UTC | 2h 10m |
| 2026-05-14 | AFL1831 | MSQ → SVO | May 14, 08:50 UTC | May 14, 09:50 UTC | 1h 0m |
| 2026-05-12 | AFL1861 | EVN → SVO | May 12, 16:05 UTC | May 12, 17:00 UTC | 55m |
| 2026-05-12 | AFL1860 | SVO → EVN | May 12, 08:20 UTC | May 12, 08:30 UTC | 10m |
| 2026-05-10 | AFL1865 | EVN → SVO | May 10, 18:39 UTC | May 11, 08:30 UTC | 13h 50m |
| 2026-05-09 | AFL1176 | SVO → AER | May 9, 05:15 UTC | May 9, 05:45 UTC | 30m |
| 2026-05-08 | AFL1003 | KGD → SVO | May 8, 11:34 UTC | May 8, 12:30 UTC | 55m |
| 2026-05-06 | AFL1485 | KJA → SVO | May 6, 00:40 UTC | May 6, 06:40 UTC | 6h 0m |
| 2026-05-01 | AFL1417 | SVX → SVO | May 1, 10:10 UTC | May 1, 11:10 UTC | 1h 0m |
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-73726 page for operator, model, and routing details .