sensors Mode-S transponder
151E12
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73234 · BOEING 737-800
- Hex
- 151E12
- Octal
- 05217022
- Decimal
- 1,383,954
- Country
- RU
- Tail
- RA-73234
- Type
- B738
- Flights observed
- 149
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 151E12 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 |
|---|---|---|---|
| PBD856 | - | 18 | 2026-07-14 |
| PBD855 | - | 15 | 2026-07-13 |
| PBD264 | - | 8 | 2026-06-26 |
| PBD835 | - | 5 | 2026-07-06 |
| PBD994 | - | 4 | 2026-06-22 |
| PBD836 | - | 4 | 2026-07-06 |
| PBD340 | - | 4 | 2026-05-20 |
| PBD263 | - | 4 | 2026-06-15 |
| PBD993 | - | 3 | 2026-05-02 |
| PBD860 | Pobeda | 3 | 2026-06-16 |
| PBD840 | - | 3 | 2026-07-03 |
| PBD839 | - | 3 | 2026-07-03 |
| PBD769 | - | 3 | 2026-06-22 |
| PBD529 | - | 3 | 2026-07-07 |
| PBD980 | - | 2 | 2026-07-13 |
| PBD979 | - | 2 | 2026-07-13 |
| PBD894 | - | 2 | 2026-05-06 |
| PBD893 | - | 2 | 2026-05-06 |
| PBD734 | - | 2 | 2026-06-12 |
| PBD6864 | - | 2 | 2026-04-15 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | PBD856 | - | Jul 14, 08:25 UTC | Jul 14, 08:55 UTC | 30m |
| 2026-07-13 | PBD855 | - | Jul 13, 12:35 UTC | Jul 14, 07:15 UTC | 18h 40m |
| 2026-07-13 | PBD980 | - | Jul 13, 12:15 UTC | Jul 14, 07:15 UTC | 19h 0m |
| 2026-07-13 | PBD979 | - | Jul 13, 09:25 UTC | Jul 13, 11:10 UTC | 1h 45m |
| 2026-07-11 | PBD509 | - | Jul 11, 10:15 UTC | Jul 11, 10:40 UTC | 25m |
| 2026-07-11 | PBD6821 | SVO → SVO | Jul 11, 08:20 UTC | Jul 11, 08:30 UTC | 10m |
| 2026-07-09 | PBD798 | - | Jul 9, 09:10 UTC | Jul 9, 10:50 UTC | 1h 40m |
| 2026-07-08 | PBD797 | - | Jul 8, 17:10 UTC | Jul 9, 08:00 UTC | 14h 50m |
| 2026-07-07 | PBD549 | - | Jul 7, 22:15 UTC | Jul 7, 22:30 UTC | 15m |
| 2026-07-07 | PBD577 | - | Jul 7, 16:25 UTC | Jul 7, 16:50 UTC | 25m |
| 2026-07-07 | PBD588 | - | Jul 7, 14:35 UTC | Jul 7, 15:30 UTC | 55m |
| 2026-07-07 | PBD587 | - | Jul 7, 12:30 UTC | Jul 7, 13:00 UTC | 30m |
| 2026-07-07 | PBD529 | - | Jul 7, 07:35 UTC | Jul 7, 08:10 UTC | 35m |
| 2026-07-06 | PBD836 | - | Jul 6, 11:45 UTC | Jul 6, 19:25 UTC | 7h 40m |
| 2026-07-06 | PBD835 | - | Jul 6, 08:35 UTC | Jul 6, 10:25 UTC | 1h 50m |
| 2026-07-05 | PBD836 | - | Jul 5, 10:50 UTC | Jul 5, 12:25 UTC | 1h 35m |
| 2026-07-05 | PBD835 | - | Jul 5, 09:20 UTC | Jul 5, 09:50 UTC | 30m |
| 2026-07-04 | PBD856 | - | Jul 4, 09:35 UTC | Jul 4, 10:05 UTC | 30m |
| 2026-07-03 | PBD968 | - | Jul 3, 18:20 UTC | Jul 3, 18:35 UTC | 15m |
| 2026-07-03 | PBD840 | - | Jul 3, 09:35 UTC | Jul 3, 11:25 UTC | 1h 50m |
| 2026-07-03 | PBD839 | - | Jul 3, 06:25 UTC | Jul 3, 08:35 UTC | 2h 10m |
| 2026-07-01 | PBD6822 | - | Jul 1, 19:30 UTC | Jul 1, 19:55 UTC | 25m |
| 2026-06-30 | PBD6547 | - | Jun 30, 23:50 UTC | Jul 1, 00:20 UTC | 30m |
| 2026-06-29 | PBD6504 | - | Jun 29, 19:20 UTC | Jun 29, 19:49 UTC | 30m |
| 2026-06-28 | PBD980 | - | Jun 28, 09:50 UTC | Jun 28, 11:39 UTC | 1h 50m |
| 2026-06-28 | PBD979 | - | Jun 28, 07:05 UTC | Jun 28, 08:39 UTC | 1h 35m |
| 2026-06-26 | PBD264 | - | Jun 26, 19:20 UTC | Jun 26, 21:10 UTC | 1h 50m |
| 2026-06-26 | PBD856 | - | Jun 26, 09:00 UTC | Jun 26, 17:40 UTC | 8h 40m |
| 2026-06-26 | PBD855 | - | Jun 26, 07:14 UTC | Jun 26, 07:39 UTC | 25m |
| 2026-06-25 | PBD856 | - | Jun 25, 10:39 UTC | Jun 26, 07:39 UTC | 21h 0m |
| 2026-06-25 | PBD855 | - | Jun 25, 09:10 UTC | Jun 25, 09:29 UTC | 20m |
| 2026-06-23 | PBD840 | - | Jun 23, 18:25 UTC | Jun 23, 20:40 UTC | 2h 15m |
| 2026-06-23 | PBD839 | - | Jun 23, 16:35 UTC | Jun 23, 17:09 UTC | 35m |
| 2026-06-22 | PBD994 | - | Jun 22, 13:35 UTC | Jun 22, 14:10 UTC | 35m |
| 2026-06-22 | PBD769 | - | Jun 22, 11:54 UTC | Jun 22, 12:10 UTC | 15m |
| 2026-06-21 | PBD856 | - | Jun 21, 12:24 UTC | Jun 21, 12:55 UTC | 30m |
| 2026-06-21 | PBD855 | - | Jun 21, 10:54 UTC | Jun 21, 11:15 UTC | 20m |
| 2026-06-20 | PBD836 | - | Jun 20, 10:29 UTC | Jun 20, 12:09 UTC | 1h 40m |
| 2026-06-20 | PBD835 | - | Jun 20, 07:54 UTC | Jun 20, 09:34 UTC | 1h 40m |
| 2026-06-18 | PBD964 | - | Jun 18, 15:35 UTC | Jun 18, 17:35 UTC | 2h 0m |
| 2026-06-18 | PBD963 | - | Jun 18, 13:25 UTC | Jun 18, 13:35 UTC | 10m |
| 2026-06-17 | PBD738 | VKO → IST | Jun 17, 15:10 UTC | Jun 17, 15:40 UTC | 30m |
| 2026-06-16 | PBD860 | AYT → AYT | Jun 16, 20:00 UTC | Jun 16, 21:55 UTC | 1h 55m |
| 2026-06-16 | PBD424 | - | Jun 16, 10:35 UTC | Jun 16, 10:49 UTC | 15m |
| 2026-06-15 | PBD264 | KGD → VKO | Jun 15, 18:20 UTC | Jun 15, 19:20 UTC | 1h 0m |
| 2026-06-15 | PBD263 | - | Jun 15, 08:45 UTC | Jun 15, 16:40 UTC | 7h 55m |
| 2026-06-14 | PBD855 | - | Jun 14, 20:25 UTC | Jun 15, 07:40 UTC | 11h 15m |
| 2026-06-13 | PBD856 | - | Jun 13, 13:25 UTC | Jun 13, 13:55 UTC | 30m |
| 2026-06-13 | PBD855 | - | Jun 13, 11:50 UTC | Jun 13, 12:15 UTC | 25m |
| 2026-06-13 | PBD855 | SVO → SVO | Jun 13, 08:50 UTC | Jun 13, 09:10 UTC | 20m |
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-73234 page for operator, model, and routing details .