sensors Mode-S transponder
4CAEBB
ICAO 24-bit transponder address · allocated to Ireland
Currently assigned to EI-KFB · AIRBUS A-320neo
- Hex
- 4CAEBB
- Octal
- 23127273
- Decimal
- 5,025,467
- Country
- IE
- Tail
- EI-KFB
- Type
- A20N
- Flights observed
- 65
- Distinct callsigns
- 20
- Country
- IE
- Last broadcast
- 6d ago
Last known position
Country allocation
The ICAO 24-bit address 4CAEBB falls within the block assigned to Ireland (IE) by ICAO Annex 10, Volume III. Every aircraft registered in Ireland 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 |
|---|---|---|---|
| AYN7951 | - | 7 | 2026-06-11 |
| AYN7952 | - | 5 | 2026-06-11 |
| AYN7111 | - | 5 | 2026-05-27 |
| AYN7078 | - | 5 | 2026-06-18 |
| AYN7906 | - | 3 | 2026-06-03 |
| AYN7905 | - | 3 | 2026-06-03 |
| AYN7817 | - | 3 | 2026-06-15 |
| AYN7675 | - | 3 | 2026-06-14 |
| AYN7372 | - | 3 | 2026-06-09 |
| AYN7371 | - | 3 | 2026-06-05 |
| AYN7112 | - | 3 | 2026-05-27 |
| AYN7077 | - | 3 | 2026-06-18 |
| AYN7351 | - | 2 | 2026-06-13 |
| AYN7152 | - | 2 | 2026-06-17 |
| AYT7352 | - | 1 | 2026-06-12 |
| AYN9051 | - | 1 | 2026-05-10 |
| AYN7926 | - | 1 | 2026-06-09 |
| AYN7925 | - | 1 | 2026-06-09 |
| AYN7818 | - | 1 | 2026-06-15 |
| AYN7794 | - | 1 | 2026-05-10 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-18 | AYN7078 | - | Jun 18, 06:30 UTC | Jun 18, 07:15 UTC | 45m |
| 2026-06-18 | AYN7077 | - | Jun 18, 05:10 UTC | Jun 18, 05:25 UTC | 15m |
| 2026-06-17 | AYN7152 | - | Jun 17, 09:10 UTC | Jun 17, 09:35 UTC | 25m |
| 2026-06-17 | AYN7151 | - | Jun 17, 07:45 UTC | Jun 17, 08:15 UTC | 30m |
| 2026-06-15 | AYN7818 | - | Jun 15, 09:30 UTC | Jun 15, 11:30 UTC | 2h 0m |
| 2026-06-15 | AYN7817 | - | Jun 15, 05:40 UTC | Jun 15, 08:04 UTC | 2h 25m |
| 2026-06-14 | AYN7817 | - | Jun 14, 10:50 UTC | Jun 15, 08:04 UTC | 21h 15m |
| 2026-06-14 | AYN7817 | - | Jun 14, 09:20 UTC | Jun 15, 08:04 UTC | 22h 45m |
| 2026-06-14 | AYN7675 | - | Jun 14, 07:25 UTC | Jun 14, 07:50 UTC | 25m |
| 2026-06-14 | AYN7675 | - | Jun 14, 06:05 UTC | Jun 14, 06:50 UTC | 45m |
| 2026-06-13 | AYN7675 | - | Jun 13, 11:35 UTC | Jun 14, 06:50 UTC | 19h 16m |
| 2026-06-13 | AYN7351 | - | Jun 13, 10:05 UTC | Jun 13, 10:30 UTC | 25m |
| 2026-06-12 | AYT7352 | PLX → PLX | Jun 12, 11:40 UTC | Jun 13, 10:30 UTC | 22h 49m |
| 2026-06-12 | AYN7351 | - | Jun 12, 10:20 UTC | Jun 12, 10:35 UTC | 15m |
| 2026-06-11 | AYN7952 | - | Jun 11, 08:50 UTC | Jun 11, 20:50 UTC | 12h 0m |
| 2026-06-11 | AYN7951 | - | Jun 11, 04:55 UTC | Jun 11, 07:45 UTC | 2h 50m |
| 2026-06-09 | AYN7372 | - | Jun 9, 13:45 UTC | Jun 9, 14:10 UTC | 25m |
| 2026-06-09 | AYN7926 | - | Jun 9, 06:05 UTC | Jun 9, 12:45 UTC | 6h 40m |
| 2026-06-09 | AYN7925 | - | Jun 9, 04:20 UTC | Jun 9, 04:40 UTC | 20m |
| 2026-06-08 | AYN7952 | - | Jun 8, 08:50 UTC | Jun 9, 03:30 UTC | 18h 40m |
| 2026-06-08 | AYN7951 | - | Jun 8, 07:35 UTC | Jun 8, 07:50 UTC | 15m |
| 2026-06-07 | AYN7951 | - | Jun 7, 16:00 UTC | Jun 8, 06:55 UTC | 14h 55m |
| 2026-06-05 | AYN7372 | - | Jun 5, 13:45 UTC | Jun 5, 14:15 UTC | 30m |
| 2026-06-05 | AYN7371 | - | Jun 5, 12:00 UTC | Jun 5, 12:25 UTC | 25m |
| 2026-06-04 | AYN7371 | - | Jun 4, 16:05 UTC | Jun 5, 12:25 UTC | 20h 20m |
| 2026-06-03 | AYN7906 | - | Jun 3, 07:40 UTC | Jun 3, 08:55 UTC | 1h 15m |
| 2026-06-03 | AYN7905 | - | Jun 3, 05:35 UTC | Jun 3, 05:55 UTC | 20m |
| 2026-06-02 | AYN7372 | - | Jun 2, 14:05 UTC | Jun 2, 14:35 UTC | 30m |
| 2026-06-02 | AYN7371 | - | Jun 2, 12:30 UTC | Jun 2, 13:00 UTC | 30m |
| 2026-06-01 | AYN7952 | - | Jun 1, 09:20 UTC | Jun 1, 11:10 UTC | 1h 50m |
| 2026-06-01 | AYN7951 | - | Jun 1, 07:30 UTC | Jun 1, 07:50 UTC | 20m |
| 2026-05-31 | AYN7951 | - | May 31, 16:35 UTC | Jun 1, 06:50 UTC | 14h 15m |
| 2026-05-29 | AYN7352 | - | May 29, 02:50 UTC | May 29, 03:15 UTC | 25m |
| 2026-05-28 | AYN7952 | - | May 28, 08:55 UTC | May 29, 01:15 UTC | 16h 20m |
| 2026-05-28 | AYN7951 | - | May 28, 07:35 UTC | May 28, 07:55 UTC | 20m |
| 2026-05-27 | AYN7112 | - | May 27, 11:55 UTC | May 28, 06:30 UTC | 18h 35m |
| 2026-05-27 | AYN7111 | - | May 27, 10:20 UTC | May 27, 10:35 UTC | 15m |
| 2026-05-27 | AYN7111 | - | May 27, 08:35 UTC | May 27, 09:30 UTC | 55m |
| 2026-05-26 | AYN7906 | - | May 26, 09:55 UTC | May 27, 08:45 UTC | 22h 51m |
| 2026-05-26 | AYN7905 | - | May 26, 07:29 UTC | May 26, 07:49 UTC | 20m |
| 2026-05-25 | AYN7078 | - | May 25, 09:55 UTC | May 25, 10:40 UTC | 45m |
| 2026-05-25 | AYN7077 | - | May 25, 07:50 UTC | May 25, 08:40 UTC | 50m |
| 2026-05-23 | AYN7112 | - | May 23, 12:05 UTC | May 23, 13:50 UTC | 1h 45m |
| 2026-05-23 | AYN7111 | - | May 23, 10:20 UTC | May 23, 10:40 UTC | 20m |
| 2026-05-23 | AYN7111 | - | May 23, 08:40 UTC | May 23, 09:45 UTC | 1h 5m |
| 2026-05-21 | AYN7952 | - | May 21, 08:50 UTC | May 21, 10:45 UTC | 1h 55m |
| 2026-05-21 | AYN7951 | - | May 21, 05:55 UTC | May 21, 07:25 UTC | 1h 30m |
| 2026-05-20 | AYN7344 | - | May 20, 17:50 UTC | May 20, 17:55 UTC | 5m |
| 2026-05-19 | AYN7906 | - | May 19, 09:55 UTC | May 19, 10:45 UTC | 50m |
| 2026-05-19 | AYN7905 | - | May 19, 06:25 UTC | May 19, 06:45 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 EI-KFB page for operator, model, and routing details .