sensors Mode-S transponder
151E66
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73318 · BOEING 737-800
- Hex
- 151E66
- Octal
- 05217146
- Decimal
- 1,384,038
- Country
- RU
- Tail
- RA-73318
- Type
- B738
- Flights observed
- 56
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 23h ago
Last known position
Country allocation
The ICAO 24-bit address 151E66 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 |
|---|---|---|---|
| NWS491 | - | 4 | 2026-05-20 |
| NWS484 | - | 4 | 2026-06-02 |
| NWS506 | - | 3 | 2026-05-18 |
| NWS493 | - | 3 | 2026-05-31 |
| NWS492 | - | 3 | 2026-05-21 |
| NWS285 | - | 3 | 2026-05-05 |
| NWS855 | - | 2 | 2026-05-12 |
| NWS494 | - | 2 | 2026-06-01 |
| NWS483 | - | 2 | 2026-05-19 |
| NWS283 | - | 2 | 2026-05-06 |
| NWS247 | - | 2 | 2026-05-14 |
| NWS105 | - | 2 | 2026-04-18 |
| NWS865 | - | 1 | 2026-05-12 |
| NWS851 | - | 1 | 2026-05-13 |
| NWS754 | - | 1 | 2026-04-16 |
| NWS753 | - | 1 | 2026-04-16 |
| NWS709 | - | 1 | 2026-04-16 |
| NWS701 | - | 1 | 2026-05-03 |
| NWS560 | - | 1 | 2026-05-19 |
| NWS476 | - | 1 | 2026-04-26 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | NWS484 | - | Jun 2, 02:40 UTC | Jun 2, 03:10 UTC | 30m |
| 2026-06-01 | NWS494 | - | Jun 1, 04:45 UTC | Jun 1, 16:05 UTC | 11h 20m |
| 2026-05-31 | NWS493 | - | May 31, 11:40 UTC | Jun 1, 03:05 UTC | 15h 25m |
| 2026-05-30 | NWS494 | - | May 30, 02:25 UTC | May 30, 03:20 UTC | 55m |
| 2026-05-29 | NWS493 | - | May 29, 23:50 UTC | May 30, 00:45 UTC | 55m |
| 2026-05-26 | NWS1294 | - | May 26, 13:15 UTC | May 26, 13:34 UTC | 20m |
| 2026-05-22 | NWS308 | - | May 22, 15:10 UTC | May 23, 00:05 UTC | 8h 55m |
| 2026-05-21 | NWS492 | - | May 21, 01:50 UTC | May 21, 02:20 UTC | 30m |
| 2026-05-20 | NWS491 | - | May 20, 23:55 UTC | May 21, 00:25 UTC | 30m |
| 2026-05-19 | NWS560 | - | May 19, 14:20 UTC | May 19, 22:00 UTC | 7h 40m |
| 2026-05-19 | NWS484 | - | May 19, 06:05 UTC | May 19, 06:50 UTC | 45m |
| 2026-05-19 | NWS484 | - | May 19, 02:55 UTC | May 19, 03:20 UTC | 25m |
| 2026-05-19 | NWS483 | - | May 19, 00:55 UTC | May 19, 01:30 UTC | 35m |
| 2026-05-18 | NWS506 | - | May 18, 03:35 UTC | May 19, 01:30 UTC | 21h 54m |
| 2026-05-18 | NWS506 | - | May 18, 03:15 UTC | May 19, 01:30 UTC | 22h 14m |
| 2026-05-17 | NWS506 | - | May 17, 23:00 UTC | May 18, 04:15 UTC | 5h 15m |
| 2026-05-14 | NWS247 | - | May 14, 17:15 UTC | May 14, 17:25 UTC | 10m |
| 2026-05-13 | NWS851 | - | May 13, 13:50 UTC | May 13, 22:05 UTC | 8h 15m |
| 2026-05-12 | NWS865 | - | May 12, 22:10 UTC | May 13, 21:30 UTC | 23h 20m |
| 2026-05-12 | NWS855 | - | May 12, 11:25 UTC | May 12, 23:20 UTC | 11h 55m |
| 2026-05-11 | NWS855 | - | May 11, 22:30 UTC | May 12, 12:45 UTC | 14h 15m |
| 2026-05-09 | NWS334 | - | May 9, 12:15 UTC | May 9, 12:40 UTC | 25m |
| 2026-05-08 | NWS253 | LED → LED | May 8, 09:30 UTC | May 8, 09:44 UTC | 15m |
| 2026-05-08 | NWS318 | - | May 8, 02:39 UTC | May 8, 06:39 UTC | 4h 0m |
| 2026-05-08 | NWS317 | - | May 8, 01:00 UTC | May 8, 01:19 UTC | 20m |
| 2026-05-07 | NWS310 | - | May 7, 02:05 UTC | May 7, 09:55 UTC | 7h 50m |
| 2026-05-06 | NWS309 | - | May 6, 21:55 UTC | May 7, 00:25 UTC | 2h 30m |
| 2026-05-06 | NWS283 | - | May 6, 12:10 UTC | May 6, 13:45 UTC | 1h 35m |
| 2026-05-05 | NWS285 | - | May 5, 19:05 UTC | May 5, 19:50 UTC | 45m |
| 2026-05-04 | NWS285 | - | May 4, 20:05 UTC | May 5, 19:30 UTC | 23h 25m |
| 2026-05-04 | NWS285 | - | May 4, 13:30 UTC | May 4, 14:20 UTC | 50m |
| 2026-05-03 | NWS059 | SVO → SVO | May 3, 21:14 UTC | May 3, 21:44 UTC | 30m |
| 2026-05-03 | NWS701 | - | May 3, 07:15 UTC | May 3, 07:45 UTC | 30m |
| 2026-05-02 | NWS324 | - | May 2, 00:45 UTC | May 2, 04:05 UTC | 3h 20m |
| 2026-05-01 | NWS323 | - | May 1, 22:30 UTC | May 1, 23:15 UTC | 45m |
| 2026-04-30 | NWS492 | - | Apr 30, 01:40 UTC | Apr 30, 02:05 UTC | 25m |
| 2026-04-29 | NWS491 | - | Apr 29, 23:35 UTC | Apr 30, 00:10 UTC | 35m |
| 2026-04-29 | NWS491 | - | Apr 29, 02:24 UTC | Apr 30, 00:10 UTC | 21h 45m |
| 2026-04-29 | NWS493 | - | Apr 29, 00:34 UTC | Apr 29, 00:54 UTC | 20m |
| 2026-04-28 | NWS484 | - | Apr 28, 03:00 UTC | Apr 29, 00:54 UTC | 21h 55m |
| 2026-04-28 | NWS483 | - | Apr 28, 00:35 UTC | Apr 28, 01:10 UTC | 35m |
| 2026-04-26 | NWS476 | - | Apr 26, 22:15 UTC | Apr 27, 06:45 UTC | 8h 30m |
| 2026-04-26 | NWS492 | - | Apr 26, 02:05 UTC | Apr 26, 07:25 UTC | 5h 20m |
| 2026-04-26 | NWS491 | - | Apr 26, 00:15 UTC | Apr 26, 00:50 UTC | 35m |
| 2026-04-24 | NWS416 | - | Apr 24, 14:50 UTC | Apr 24, 16:00 UTC | 1h 10m |
| 2026-04-20 | NWS247 | - | Apr 20, 16:30 UTC | Apr 20, 16:45 UTC | 15m |
| 2026-04-19 | NWS206 | LED → LED | Apr 19, 15:55 UTC | Apr 19, 16:55 UTC | 1h 0m |
| 2026-04-18 | NWS106 | - | Apr 18, 16:10 UTC | Apr 18, 18:25 UTC | 2h 15m |
| 2026-04-18 | NWS283 | - | Apr 18, 14:00 UTC | Apr 18, 14:40 UTC | 40m |
| 2026-04-18 | NWS284 | - | Apr 18, 10:30 UTC | Apr 18, 11:45 UTC | 1h 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-73318 page for operator, model, and routing details .