sensors Mode-S transponder
1533AD
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-78765 · ILYUSHIN Il-76/82
- Hex
- 1533AD
- Octal
- 05231655
- Decimal
- 1,389,485
- Country
- RU
- Tail
- RA-78765
- Type
- IL76
- Flights observed
- 42
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 5d ago
Last known position
Country allocation
The ICAO 24-bit address 1533AD 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 |
|---|---|---|---|
| AZS1935 | - | 8 | 2026-07-18 |
| AZS1936 | - | 5 | 2026-07-22 |
| AZS1922 | - | 3 | 2026-07-12 |
| AZS1921 | - | 3 | 2026-07-08 |
| AZS1901 | - | 3 | 2026-07-04 |
| AZS4136 | - | 2 | 2026-06-19 |
| AZS4115 | - | 2 | 2026-07-13 |
| AZS4102 | - | 2 | 2026-06-22 |
| AZS1902 | - | 2 | 2026-07-05 |
| AZS1401 | - | 2 | 2026-06-20 |
| AZS6907 | - | 1 | 2026-06-17 |
| AZS6906 | - | 1 | 2026-06-14 |
| AZS6905 | - | 1 | 2026-06-14 |
| AZS6903 | - | 1 | 2026-06-13 |
| AZS6902 | - | 1 | 2026-06-12 |
| AZS4116 | - | 1 | 2026-07-14 |
| AZS4103 | - | 1 | 2026-06-26 |
| AZS1602 | - | 1 | 2026-06-11 |
| AZS1601 | - | 1 | 2026-06-10 |
| AZS1101 | - | 1 | 2026-06-27 |
Recent flights last 42
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-22 | AZS1936 | - | Jul 22, 21:20 UTC | Jul 23, 16:20 UTC | 19h 0m |
| 2026-07-22 | AZS1936 | - | Jul 22, 20:30 UTC | Jul 23, 16:20 UTC | 19h 50m |
| 2026-07-22 | AZS1936 | - | Jul 22, 14:10 UTC | Jul 22, 16:00 UTC | 1h 50m |
| 2026-07-20 | AZS1936 | - | Jul 20, 21:00 UTC | Jul 20, 21:40 UTC | 40m |
| 2026-07-20 | AZS1936 | - | Jul 20, 15:15 UTC | Jul 20, 15:40 UTC | 25m |
| 2026-07-18 | AZS1935 | - | Jul 18, 20:25 UTC | Jul 18, 20:45 UTC | 20m |
| 2026-07-18 | AZS1935 | - | Jul 18, 13:10 UTC | Jul 18, 13:25 UTC | 15m |
| 2026-07-18 | AZS1935 | - | Jul 18, 11:40 UTC | Jul 18, 11:55 UTC | 15m |
| 2026-07-16 | AZS1935 | - | Jul 16, 10:59 UTC | Jul 16, 12:25 UTC | 1h 25m |
| 2026-07-16 | AZS1935 | - | Jul 16, 09:00 UTC | Jul 16, 09:10 UTC | 10m |
| 2026-07-16 | AZS1935 | MJI → MJI | Jul 16, 07:50 UTC | Jul 16, 07:55 UTC | 5m |
| 2026-07-16 | AZS1935 | - | Jul 16, 00:55 UTC | Jul 16, 05:45 UTC | 4h 50m |
| 2026-07-15 | AZS1935 | - | Jul 15, 00:20 UTC | Jul 15, 01:35 UTC | 1h 15m |
| 2026-07-14 | AZS4116 | - | Jul 14, 05:45 UTC | Jul 14, 06:10 UTC | 25m |
| 2026-07-13 | AZS4115 | - | Jul 13, 15:30 UTC | Jul 13, 16:10 UTC | 40m |
| 2026-07-13 | AZS4115 | - | Jul 13, 02:05 UTC | Jul 13, 02:55 UTC | 50m |
| 2026-07-12 | AZS1922 | - | Jul 12, 11:05 UTC | Jul 12, 11:30 UTC | 25m |
| 2026-07-12 | AZS1922 | - | Jul 12, 02:05 UTC | Jul 12, 02:15 UTC | 10m |
| 2026-07-09 | AZS1922 | NSI → LAD | Jul 9, 12:30 UTC | Jul 9, 14:35 UTC | 2h 5m |
| 2026-07-08 | AZS1921 | - | Jul 8, 21:25 UTC | Jul 8, 21:40 UTC | 15m |
| 2026-07-08 | AZS1921 | - | Jul 8, 15:30 UTC | Jul 8, 16:35 UTC | 1h 5m |
| 2026-07-07 | AZS1921 | - | Jul 7, 23:05 UTC | Jul 8, 01:35 UTC | 2h 30m |
| 2026-07-05 | AZS1902 | - | Jul 5, 15:35 UTC | Jul 5, 17:15 UTC | 1h 40m |
| 2026-07-05 | AZS1902 | - | Jul 5, 09:20 UTC | Jul 5, 13:50 UTC | 4h 30m |
| 2026-07-04 | AZS1901 | - | Jul 4, 08:25 UTC | Jul 4, 11:35 UTC | 3h 10m |
| 2026-07-03 | AZS1901 | - | Jul 3, 11:55 UTC | Jul 3, 14:35 UTC | 2h 40m |
| 2026-07-02 | AZS1901 | - | Jul 2, 09:25 UTC | Jul 2, 10:05 UTC | 40m |
| 2026-06-27 | AZS1101 | - | Jun 27, 07:15 UTC | Jun 27, 08:44 UTC | 1h 30m |
| 2026-06-26 | AZS4103 | - | Jun 26, 08:40 UTC | Jun 26, 09:00 UTC | 20m |
| 2026-06-22 | AZS4102 | - | Jun 22, 06:25 UTC | Jun 22, 08:35 UTC | 2h 10m |
| 2026-06-21 | AZS4102 | - | Jun 21, 23:24 UTC | Jun 21, 23:59 UTC | 35m |
| 2026-06-20 | AZS1401 | - | Jun 20, 15:49 UTC | Jun 20, 16:14 UTC | 25m |
| 2026-06-20 | AZS1401 | - | Jun 20, 08:05 UTC | Jun 20, 09:24 UTC | 1h 20m |
| 2026-06-19 | AZS4136 | - | Jun 19, 07:59 UTC | Jun 19, 09:34 UTC | 1h 35m |
| 2026-06-19 | AZS4136 | - | Jun 19, 00:29 UTC | Jun 19, 01:04 UTC | 35m |
| 2026-06-17 | AZS6907 | - | Jun 17, 08:15 UTC | Jun 17, 08:45 UTC | 30m |
| 2026-06-14 | AZS6906 | - | Jun 14, 18:10 UTC | Jun 14, 19:55 UTC | 1h 45m |
| 2026-06-14 | AZS6905 | - | Jun 14, 05:50 UTC | Jun 14, 06:05 UTC | 15m |
| 2026-06-13 | AZS6903 | - | Jun 13, 05:30 UTC | Jun 13, 16:45 UTC | 11h 15m |
| 2026-06-12 | AZS6902 | - | Jun 12, 05:25 UTC | Jun 12, 15:35 UTC | 10h 10m |
| 2026-06-11 | AZS1602 | - | Jun 11, 09:20 UTC | Jun 11, 10:00 UTC | 40m |
| 2026-06-10 | AZS1601 | - | Jun 10, 06:05 UTC | Jun 10, 10:35 UTC | 4h 30m |
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-78765 page for operator, model, and routing details .