sensors Mode-S transponder
4408FD
ICAO 24-bit transponder address · allocated to Austria
Currently assigned to OE-IFB · BOEING 747-400
- Hex
- 4408FD
- Octal
- 21004375
- Decimal
- 4,458,749
- Country
- AT
- Tail
- OE-IFB
- Type
- B744
- Flights observed
- 150
- Distinct callsigns
- 20
- Country
- AT
- Last broadcast
- 11d ago
Last known position
Country allocation
The ICAO 24-bit address 4408FD falls within the block assigned to Austria (AT) by ICAO Annex 10, Volume III. Every aircraft registered in Austria 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 |
|---|---|---|---|
| TAY827 | - | 18 | 2026-06-22 |
| TAY813 | ASL Airlines Belgium | 14 | 2026-04-29 |
| TAY1842 | - | 14 | 2026-06-26 |
| TAY811 | ASL Airlines Belgium | 13 | 2026-06-18 |
| TAY1841 | - | 13 | 2026-06-25 |
| TAY826 | - | 12 | 2026-06-21 |
| TAY812 | ASL Airlines Belgium | 10 | 2026-06-19 |
| TAY401 | - | 8 | 2026-06-30 |
| TAY952 | ASL Airlines Belgium | 6 | 2026-06-10 |
| TAY951 | - | 5 | 2026-06-09 |
| BCS516 | European Air Transport | 5 | 2026-06-04 |
| TAY400 | - | 4 | 2026-06-17 |
| BCS517 | European Air Transport | 4 | 2026-06-05 |
| TAY802 | - | 3 | 2026-06-25 |
| TAY400D | - | 3 | 2026-07-06 |
| TAY400A | ASL Airlines Belgium | 3 | 2026-06-09 |
| TAY970 | - | 2 | 2026-06-05 |
| TAY914E | ASL Airlines Belgium | 2 | 2026-05-14 |
| TAY401A | - | 2 | 2026-06-08 |
| TAY184Y | - | 2 | 2026-06-13 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-06 | TAY400D | - | Jul 6, 17:30 UTC | Jul 6, 18:10 UTC | 40m |
| 2026-07-06 | TAY400D | - | Jul 6, 10:55 UTC | Jul 6, 15:00 UTC | 4h 5m |
| 2026-07-06 | TAY400D | - | Jul 6, 00:10 UTC | Jul 6, 00:25 UTC | 15m |
| 2026-06-30 | TAY401 | - | Jun 30, 14:45 UTC | Jun 30, 22:05 UTC | 7h 20m |
| 2026-06-27 | TAY401 | - | Jun 27, 09:29 UTC | Jun 27, 16:30 UTC | 7h 0m |
| 2026-06-26 | TAY1842 | - | Jun 26, 23:49 UTC | Jun 27, 04:09 UTC | 4h 20m |
| 2026-06-26 | TAY1842 | - | Jun 26, 01:20 UTC | Jun 27, 01:00 UTC | 23h 40m |
| 2026-06-25 | TAY1841 | - | Jun 25, 23:24 UTC | Jun 26, 02:05 UTC | 2h 40m |
| 2026-06-25 | TAY802 | - | Jun 25, 02:25 UTC | Jun 25, 16:39 UTC | 14h 15m |
| 2026-06-24 | TAY802 | - | Jun 24, 19:29 UTC | Jun 25, 16:39 UTC | 21h 10m |
| 2026-06-24 | TAY802 | - | Jun 24, 13:40 UTC | Jun 25, 13:14 UTC | 23h 35m |
| 2026-06-24 | TAY801 | - | Jun 24, 09:55 UTC | Jun 25, 02:45 UTC | 16h 50m |
| 2026-06-23 | TAY808 | - | Jun 23, 12:29 UTC | Jun 24, 06:25 UTC | 17h 55m |
| 2026-06-22 | TAY827 | - | Jun 22, 13:29 UTC | Jun 22, 18:00 UTC | 4h 30m |
| 2026-06-21 | TAY826 | - | Jun 21, 11:05 UTC | Jun 21, 13:44 UTC | 2h 40m |
| 2026-06-20 | TAY1842 | - | Jun 20, 22:00 UTC | Jun 21, 02:35 UTC | 4h 35m |
| 2026-06-19 | TAY1841 | - | Jun 19, 23:19 UTC | Jun 20, 23:10 UTC | 23h 50m |
| 2026-06-19 | TAY1841 | - | Jun 19, 21:49 UTC | Jun 20, 01:44 UTC | 3h 55m |
| 2026-06-19 | TAY812 | TNA → LGG | Jun 19, 08:04 UTC | Jun 19, 12:19 UTC | 4h 15m |
| 2026-06-18 | TAY811 | LGG → TNA | Jun 18, 06:45 UTC | Jun 18, 09:15 UTC | 2h 30m |
| 2026-06-17 | TAY400 | - | Jun 17, 15:55 UTC | Jun 17, 20:20 UTC | 4h 25m |
| 2026-06-17 | TAY400 | - | Jun 17, 05:35 UTC | Jun 17, 05:55 UTC | 20m |
| 2026-06-17 | TAY401 | - | Jun 17, 01:40 UTC | Jun 17, 02:10 UTC | 30m |
| 2026-06-16 | TAY401 | - | Jun 16, 20:05 UTC | Jun 17, 00:55 UTC | 4h 50m |
| 2026-06-16 | TAY401 | - | Jun 16, 18:45 UTC | Jun 16, 19:05 UTC | 20m |
| 2026-06-16 | TAY401 | - | Jun 16, 09:30 UTC | Jun 16, 15:45 UTC | 6h 15m |
| 2026-06-16 | TAY827 | - | Jun 16, 00:55 UTC | Jun 16, 05:30 UTC | 4h 35m |
| 2026-06-15 | TAY826 | LGG → LGG | Jun 15, 01:20 UTC | Jun 16, 01:15 UTC | 23h 55m |
| 2026-06-14 | TAY826 | LGG → LGG | Jun 14, 23:20 UTC | Jun 15, 01:45 UTC | 2h 25m |
| 2026-06-14 | TAY1846 | TLV → LGG | Jun 14, 15:25 UTC | Jun 14, 19:40 UTC | 4h 15m |
| 2026-06-14 | TAY1845 | LGG → TLV | Jun 14, 08:20 UTC | Jun 14, 12:00 UTC | 3h 40m |
| 2026-06-14 | TAY184X | - | Jun 14, 00:20 UTC | Jun 14, 04:55 UTC | 4h 35m |
| 2026-06-13 | TAY184X | - | Jun 13, 03:35 UTC | Jun 14, 03:15 UTC | 23h 39m |
| 2026-06-13 | TAY184Y | - | Jun 13, 01:20 UTC | Jun 14, 01:15 UTC | 23h 54m |
| 2026-06-12 | TAY184Y | - | Jun 12, 23:55 UTC | Jun 13, 04:20 UTC | 4h 25m |
| 2026-06-12 | TAY400 | ALA → LGG | Jun 12, 15:30 UTC | Jun 12, 20:35 UTC | 5h 5m |
| 2026-06-12 | TAY400 | ALA → LGG | Jun 12, 05:20 UTC | Jun 12, 05:35 UTC | 15m |
| 2026-06-12 | TAY401 | - | Jun 12, 01:25 UTC | Jun 12, 01:45 UTC | 20m |
| 2026-06-11 | TAY401 | - | Jun 11, 09:25 UTC | Jun 11, 23:10 UTC | 13h 45m |
| 2026-06-10 | TAY952 | HKG → HKG | Jun 10, 21:25 UTC | Jun 11, 02:20 UTC | 4h 55m |
| 2026-06-10 | TAY952 | HKG → HKG | Jun 10, 10:45 UTC | Jun 10, 11:00 UTC | 15m |
| 2026-06-09 | TAY951 | - | Jun 9, 20:35 UTC | Jun 9, 23:15 UTC | 2h 40m |
| 2026-06-09 | TAY400A | ALA → LGG | Jun 9, 16:45 UTC | Jun 9, 17:00 UTC | 15m |
| 2026-06-09 | TAY400A | ALA → LGG | Jun 9, 12:15 UTC | Jun 9, 15:50 UTC | 3h 35m |
| 2026-06-09 | TAY400A | ALA → LGG | Jun 9, 00:00 UTC | Jun 9, 00:15 UTC | 15m |
| 2026-06-08 | TAY401A | - | Jun 8, 18:45 UTC | Jun 8, 19:15 UTC | 30m |
| 2026-06-08 | TAY401A | - | Jun 8, 07:50 UTC | Jun 8, 10:20 UTC | 2h 30m |
| 2026-06-05 | TAY970 | - | Jun 5, 22:50 UTC | Jun 5, 23:40 UTC | 50m |
| 2026-06-05 | BCS517 | ALA → LEJ | Jun 5, 16:35 UTC | Jun 5, 19:30 UTC | 2h 55m |
| 2026-06-05 | BCS517 | ALA → LEJ | Jun 5, 05:10 UTC | Jun 5, 05:30 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 OE-IFB page for operator, model, and routing details .