sensors Mode-S transponder
151EDC
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73436 · AIRBUS A-321
- Hex
- 151EDC
- Octal
- 05217334
- Decimal
- 1,384,156
- Country
- RU
- Tail
- RA-73436
- Type
- A321
- Flights observed
- 104
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 151EDC 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
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | S75555 | - | May 29, 21:40 UTC | May 30, 07:25 UTC | 9h 45m |
| 2026-05-29 | SBI2504 | OVB → DME | May 29, 03:35 UTC | May 29, 21:40 UTC | 18h 5m |
| 2026-05-29 | SBI2504 | OVB → DME | May 29, 01:40 UTC | May 29, 21:40 UTC | 20h 0m |
| 2026-05-28 | SBI5033 | - | May 28, 15:55 UTC | May 28, 16:10 UTC | 15m |
| 2026-05-28 | SBI5565 | OVB → TAS | May 28, 07:20 UTC | May 28, 13:05 UTC | 5h 45m |
| 2026-05-27 | SBI5210 | BQS → OVB | May 27, 18:00 UTC | May 28, 03:15 UTC | 9h 15m |
| 2026-05-26 | SBI5210 | BQS → OVB | May 26, 12:20 UTC | May 27, 03:29 UTC | 15h 10m |
| 2026-05-26 | SBI5210 | BQS → OVB | May 26, 07:10 UTC | May 27, 03:29 UTC | 20h 20m |
| 2026-05-25 | SBI5210 | BQS → OVB | May 25, 17:50 UTC | May 26, 03:19 UTC | 9h 30m |
| 2026-05-24 | SBI5223 | OVB → HTA | May 24, 19:00 UTC | May 25, 12:55 UTC | 17h 55m |
| 2026-05-23 | SBI5224 | HTA → OVB | May 23, 18:55 UTC | May 24, 01:40 UTC | 6h 45m |
| 2026-05-23 | SBI5006 | LED → OVB | May 23, 13:05 UTC | May 23, 13:35 UTC | 30m |
| 2026-05-23 | SBI5005 | OVB → LED | May 23, 11:15 UTC | May 23, 11:25 UTC | 10m |
| 2026-05-23 | SBI5005 | OVB → LED | May 23, 07:20 UTC | May 23, 10:10 UTC | 2h 50m |
| 2026-05-22 | SBI5246 | NER → OVB | May 22, 18:20 UTC | May 23, 02:50 UTC | 8h 29m |
| 2026-05-22 | SBI5005 | OVB → LED | May 22, 07:25 UTC | May 22, 16:30 UTC | 9h 5m |
| 2026-05-21 | SBI5224 | HTA → OVB | May 21, 19:00 UTC | May 22, 01:30 UTC | 6h 30m |
| 2026-05-21 | SBI5006 | LED → OVB | May 21, 13:55 UTC | May 21, 15:15 UTC | 1h 20m |
| 2026-05-21 | SBI5006 | LED → OVB | May 21, 12:55 UTC | May 21, 13:20 UTC | 25m |
| 2026-05-21 | SBI5005 | OVB → LED | May 21, 07:25 UTC | May 21, 10:20 UTC | 2h 55m |
| 2026-05-20 | SBI5223 | OVB → HTA | May 20, 19:00 UTC | May 21, 01:35 UTC | 6h 35m |
| 2026-05-17 | SBI5552 | DYU → OVB | May 17, 22:55 UTC | May 18, 14:15 UTC | 15h 20m |
| 2026-05-17 | SBI3236 | ASB → DME | May 17, 14:05 UTC | May 18, 07:25 UTC | 17h 20m |
| 2026-05-17 | SBI3235 | DME → ASB | May 17, 09:35 UTC | May 18, 07:25 UTC | 21h 50m |
| 2026-05-17 | SBI3235 | DME → ASB | May 17, 08:40 UTC | May 17, 23:05 UTC | 14h 25m |
| 2026-05-16 | SBI5008 | LED → OVB | May 16, 15:55 UTC | May 16, 16:20 UTC | 25m |
| 2026-05-16 | SBI5007 | OVB → LED | May 16, 10:25 UTC | May 16, 12:50 UTC | 2h 25m |
| 2026-05-16 | SBI2502 | OVB → DME | May 16, 01:35 UTC | May 16, 02:15 UTC | 40m |
| 2026-05-15 | SBI5008 | LED → OVB | May 15, 12:55 UTC | May 15, 19:40 UTC | 6h 44m |
| 2026-05-14 | SBI5552 | DYU → OVB | May 14, 13:30 UTC | May 15, 13:00 UTC | 23h 30m |
| 2026-05-13 | SBI5224 | HTA → OVB | May 13, 19:15 UTC | May 14, 13:55 UTC | 18h 40m |
| 2026-05-13 | SBI5224 | HTA → OVB | May 13, 14:30 UTC | May 14, 07:45 UTC | 17h 15m |
| 2026-05-13 | SBI5006 | LED → OVB | May 13, 13:05 UTC | May 13, 13:20 UTC | 15m |
| 2026-05-13 | SBI5005 | OVB → LED | May 13, 09:45 UTC | May 13, 10:25 UTC | 40m |
| 2026-05-12 | SBI3236 | ASB → DME | May 12, 13:55 UTC | May 12, 23:15 UTC | 9h 20m |
| 2026-05-11 | SBI3236 | ASB → DME | May 11, 14:10 UTC | May 12, 04:25 UTC | 14h 16m |
| 2026-05-11 | SBI3236 | ASB → DME | May 11, 01:15 UTC | May 11, 16:05 UTC | 14h 50m |
| 2026-05-10 | SBI5008 | LED → OVB | May 10, 17:34 UTC | May 10, 18:20 UTC | 45m |
| 2026-05-10 | SBI5008 | LED → OVB | May 10, 16:10 UTC | May 10, 16:30 UTC | 20m |
| 2026-05-10 | SBI5007 | OVB → LED | May 10, 01:30 UTC | May 10, 14:34 UTC | 13h 5m |
| 2026-05-09 | SBI5007 | OVB → LED | May 9, 17:05 UTC | May 10, 14:34 UTC | 21h 30m |
| 2026-05-09 | SBI5007 | OVB → LED | May 9, 16:50 UTC | May 10, 14:34 UTC | 21h 45m |
| 2026-05-08 | SBI2502 | OVB → DME | May 8, 23:30 UTC | May 9, 02:15 UTC | 2h 45m |
| 2026-05-08 | SBI5008 | LED → OVB | May 8, 19:25 UTC | May 8, 19:35 UTC | 10m |
| 2026-05-08 | SBI5008 | LED → OVB | May 8, 16:10 UTC | May 8, 16:30 UTC | 20m |
| 2026-05-07 | SBI2502 | OVB → DME | May 7, 13:55 UTC | May 8, 02:14 UTC | 12h 19m |
| 2026-05-06 | SBI2513 | DME → OVB | May 6, 20:30 UTC | May 6, 23:25 UTC | 2h 55m |
| 2026-05-06 | SBI3235 | DME → ASB | May 6, 08:50 UTC | May 6, 09:00 UTC | 10m |
| 2026-05-06 | SBI3235 | DME → ASB | May 6, 07:50 UTC | May 6, 08:10 UTC | 20m |
| 2026-05-06 | SBI2504 | OVB → DME | May 6, 03:20 UTC | May 6, 04:30 UTC | 1h 10m |
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-73436 page for operator, model, and routing details .