sensors Mode-S transponder
4B820F
ICAO 24-bit transponder address · allocated to Turkey
Currently assigned to 15-0051 · AIRBUS A-400M
- Hex
- 4B820F
- Octal
- 22701017
- Decimal
- 4,948,495
- Country
- TR
- Tail
- 15-0051
- Type
- A400
- Flights observed
- 61
- Distinct callsigns
- 20
- Country
- TR
- Last broadcast
- Jul 26, 11:55 UTC
Last known position
Country allocation
The ICAO 24-bit address 4B820F falls within the block assigned to Turkey (TR) by ICAO Annex 10, Volume III. Every aircraft registered in Turkey 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 |
|---|---|---|---|
| TUAF520 | - | 7 | 2026-07-05 |
| ESEN03 | - | 5 | 2026-07-25 |
| TUAF736 | - | 4 | 2026-05-04 |
| TUAF221 | - | 4 | 2026-06-24 |
| ESEN02 | - | 4 | 2026-06-03 |
| ESEN01 | - | 4 | 2026-07-26 |
| TUAF842 | - | 3 | 2026-07-21 |
| TUAF836 | - | 3 | 2026-06-17 |
| TUAF821 | - | 3 | 2026-04-29 |
| TUAF304 | - | 3 | 2026-04-26 |
| TUAF222 | - | 3 | 2026-06-29 |
| ESEN20 | - | 3 | 2026-07-02 |
| ESEN13 | - | 3 | 2026-05-05 |
| ESEN05 | - | 3 | 2026-06-08 |
| TUAF517 | - | 2 | 2026-06-28 |
| TUAF309 | - | 2 | 2026-06-30 |
| ESEN17 | - | 2 | 2026-07-12 |
| TUAF519 | - | 1 | 2026-06-21 |
| TUAF511 | - | 1 | 2026-05-09 |
| TUAF208 | - | 1 | 2026-04-24 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | ESEN01 | - | Jul 26, 11:40 UTC | Jul 26, 11:55 UTC | 15m |
| 2026-07-26 | ESEN01 | - | Jul 26, 10:05 UTC | Jul 26, 10:40 UTC | 35m |
| 2026-07-26 | ESEN01 | - | Jul 26, 08:35 UTC | Jul 26, 09:15 UTC | 40m |
| 2026-07-26 | ESEN01 | - | Jul 26, 06:55 UTC | Jul 26, 07:30 UTC | 35m |
| 2026-07-25 | ESEN03 | ECN → ISL | Jul 25, 12:35 UTC | Jul 26, 05:40 UTC | 17h 5m |
| 2026-07-25 | ESEN03 | ECN → ECN | Jul 25, 08:20 UTC | Jul 25, 11:15 UTC | 2h 55m |
| 2026-07-25 | ESEN03 | - | Jul 25, 05:50 UTC | Jul 25, 06:20 UTC | 30m |
| 2026-07-21 | TUAF842 | - | Jul 21, 15:50 UTC | Jul 21, 18:30 UTC | 2h 40m |
| 2026-07-21 | TUAF842 | - | Jul 21, 10:20 UTC | Jul 21, 12:55 UTC | 2h 35m |
| 2026-07-21 | TUAF842 | - | Jul 21, 07:30 UTC | Jul 21, 08:05 UTC | 35m |
| 2026-07-12 | ESEN17 | - | Jul 12, 18:35 UTC | Jul 12, 19:10 UTC | 35m |
| 2026-07-12 | ESEN17 | - | Jul 12, 13:40 UTC | Jul 12, 14:15 UTC | 35m |
| 2026-07-05 | TUAF520 | - | Jul 5, 16:10 UTC | Jul 5, 16:45 UTC | 35m |
| 2026-07-05 | TUAF520 | - | Jul 5, 14:20 UTC | Jul 5, 14:50 UTC | 30m |
| 2026-07-05 | TUAF520 | - | Jul 5, 12:35 UTC | Jul 5, 13:40 UTC | 1h 5m |
| 2026-07-04 | TUAF520 | - | Jul 4, 16:50 UTC | Jul 4, 17:45 UTC | 55m |
| 2026-07-04 | TUAF520 | - | Jul 4, 14:15 UTC | Jul 4, 15:15 UTC | 1h 0m |
| 2026-07-02 | ESEN20 | - | Jul 2, 13:05 UTC | Jul 2, 13:45 UTC | 40m |
| 2026-07-02 | ESEN20 | - | Jul 2, 09:00 UTC | Jul 2, 10:25 UTC | 1h 25m |
| 2026-06-30 | TUAF520 | - | Jun 30, 18:10 UTC | Jun 30, 19:40 UTC | 1h 30m |
| 2026-06-30 | TUAF520 | - | Jun 30, 14:45 UTC | Jun 30, 16:45 UTC | 2h 0m |
| 2026-06-30 | TUAF309 | - | Jun 30, 11:20 UTC | Jun 30, 12:50 UTC | 1h 30m |
| 2026-06-29 | TUAF309 | - | Jun 29, 16:50 UTC | Jun 30, 09:15 UTC | 16h 26m |
| 2026-06-29 | TUAF222 | - | Jun 29, 11:55 UTC | Jun 29, 15:30 UTC | 3h 35m |
| 2026-06-28 | TUAF222 | - | Jun 28, 17:19 UTC | Jun 29, 10:24 UTC | 17h 5m |
| 2026-06-28 | TUAF222 | - | Jun 28, 09:50 UTC | Jun 29, 09:44 UTC | 23h 55m |
| 2026-06-28 | TUAF517 | - | Jun 28, 08:09 UTC | Jun 29, 07:44 UTC | 23h 35m |
| 2026-06-28 | TUAF517 | - | Jun 28, 06:05 UTC | Jun 28, 06:44 UTC | 40m |
| 2026-06-24 | TUAF221 | - | Jun 24, 13:10 UTC | Jun 24, 16:29 UTC | 3h 20m |
| 2026-06-24 | TUAF221 | - | Jun 24, 08:24 UTC | Jun 24, 10:19 UTC | 1h 55m |
| 2026-06-23 | TUAF221 | - | Jun 23, 10:39 UTC | Jun 23, 12:35 UTC | 1h 55m |
| 2026-06-22 | TUAF221 | - | Jun 22, 12:10 UTC | Jun 23, 11:45 UTC | 23h 35m |
| 2026-06-22 | ESEN20 | - | Jun 22, 08:04 UTC | Jun 22, 09:10 UTC | 1h 5m |
| 2026-06-21 | TUAF519 | - | Jun 21, 16:19 UTC | Jun 21, 21:54 UTC | 5h 35m |
| 2026-06-20 | ESEN03 | - | Jun 20, 09:05 UTC | Jun 20, 09:29 UTC | 25m |
| 2026-06-20 | ESEN03 | - | Jun 20, 06:19 UTC | Jun 20, 07:00 UTC | 40m |
| 2026-06-17 | TUAF836 | - | Jun 17, 20:35 UTC | Jun 17, 20:45 UTC | 10m |
| 2026-06-17 | TUAF836 | - | Jun 17, 16:50 UTC | Jun 17, 20:00 UTC | 3h 10m |
| 2026-06-17 | TUAF836 | - | Jun 17, 11:05 UTC | Jun 17, 14:15 UTC | 3h 10m |
| 2026-06-08 | ESEN05 | - | Jun 8, 10:55 UTC | Jun 8, 11:35 UTC | 40m |
| 2026-06-03 | ESEN02 | - | Jun 3, 13:10 UTC | Jun 3, 13:55 UTC | 45m |
| 2026-06-03 | ESEN02 | - | Jun 3, 08:30 UTC | Jun 3, 09:05 UTC | 35m |
| 2026-06-03 | ESEN02 | - | Jun 3, 04:50 UTC | Jun 3, 05:45 UTC | 55m |
| 2026-05-09 | TUAF511 | - | May 9, 10:15 UTC | May 9, 15:30 UTC | 5h 15m |
| 2026-05-05 | ESEN13 | - | May 5, 15:01 UTC | May 5, 15:30 UTC | 30m |
| 2026-05-04 | TUAF736 | - | May 4, 20:00 UTC | May 5, 11:30 UTC | 15h 30m |
| 2026-05-04 | TUAF736 | - | May 4, 15:55 UTC | May 4, 17:35 UTC | 1h 40m |
| 2026-05-02 | TUAF736 | - | May 2, 20:50 UTC | May 2, 22:45 UTC | 1h 55m |
| 2026-05-02 | TUAF736 | - | May 2, 18:40 UTC | May 2, 19:15 UTC | 35m |
| 2026-04-29 | TUAF821 | - | Apr 29, 17:20 UTC | Apr 29, 17:40 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 15-0051 page for operator, model, and routing details .