sensors Mode-S transponder
4CAEBA
ICAO 24-bit transponder address · allocated to Ireland
Currently assigned to EI-KIA · AIRBUS A-320neo
- Hex
- 4CAEBA
- Octal
- 23127272
- Decimal
- 5,025,466
- Country
- IE
- Tail
- EI-KIA
- Type
- A20N
- Flights observed
- 54
- Distinct callsigns
- 20
- Country
- IE
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 4CAEBA 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 |
|---|---|---|---|
| KZR301 | Air Astana | 8 | 2026-05-24 |
| KZR302 | Air Astana | 7 | 2026-05-24 |
| KZR346 | Air Astana | 5 | 2026-06-01 |
| KZR277 | Air Astana | 4 | 2026-06-04 |
| KZR345 | Air Astana | 3 | 2026-05-29 |
| KZR869 | Air Astana | 2 | 2026-04-21 |
| KZR268 | Air Astana | 2 | 2026-06-02 |
| KZR142 | Air Astana | 2 | 2026-06-02 |
| KZR141 | Air Astana | 2 | 2026-06-02 |
| KZR140 | Air Astana | 2 | 2026-05-14 |
| KZR139 | Air Astana | 2 | 2026-05-14 |
| KZR964 | Air Astana | 1 | 2026-05-03 |
| KZR963 | Air Astana | 1 | 2026-05-03 |
| KZR908 | Air Astana | 1 | 2026-05-06 |
| KZR907 | Air Astana | 1 | 2026-05-06 |
| KZR886 | Air Astana | 1 | 2026-05-09 |
| KZR870 | Air Astana | 1 | 2026-04-21 |
| KZR860 | Air Astana | 1 | 2026-05-12 |
| KZR859 | Air Astana | 1 | 2026-05-12 |
| KZR335 | Air Astana | 1 | 2026-05-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-05 | KZR126 | TBS → GUW | Jun 5, 06:00 UTC | Jun 5, 06:30 UTC | 30m |
| 2026-06-05 | KZR125 | GUW → TBS | Jun 5, 03:20 UTC | Jun 5, 04:40 UTC | 1h 20m |
| 2026-06-04 | KZR277 | GUW → GYD | Jun 4, 16:55 UTC | Jun 4, 17:30 UTC | 35m |
| 2026-06-02 | KZR268 | PEK → ALA | Jun 2, 22:10 UTC | Jun 2, 22:35 UTC | 25m |
| 2026-06-02 | KZR142 | TBS → ALA | Jun 2, 11:35 UTC | Jun 2, 20:40 UTC | 9h 5m |
| 2026-06-02 | KZR141 | ALA → TBS | Jun 2, 09:50 UTC | Jun 2, 10:15 UTC | 25m |
| 2026-06-01 | KZR346 | UKK → NQZ | Jun 1, 10:35 UTC | Jun 1, 11:05 UTC | 30m |
| 2026-05-31 | KZR120 | TBS → NQZ | May 31, 20:40 UTC | Jun 1, 09:05 UTC | 12h 25m |
| 2026-05-31 | KZR119 | NQZ → TBS | May 31, 19:15 UTC | May 31, 19:35 UTC | 20m |
| 2026-05-29 | KZR346 | UKK → NQZ | May 29, 02:40 UTC | May 29, 03:20 UTC | 40m |
| 2026-05-29 | KZR345 | NQZ → UKK | May 29, 00:45 UTC | May 29, 01:10 UTC | 25m |
| 2026-05-27 | KZR335 | NQZ → KSN | May 27, 23:45 UTC | May 28, 00:00 UTC | 15m |
| 2026-05-27 | KZR346 | UKK → NQZ | May 27, 02:39 UTC | May 27, 03:09 UTC | 30m |
| 2026-05-27 | KZR345 | NQZ → UKK | May 27, 00:30 UTC | May 27, 00:59 UTC | 30m |
| 2026-05-26 | KZR346 | UKK → NQZ | May 26, 02:35 UTC | May 27, 00:59 UTC | 22h 25m |
| 2026-05-26 | KZR346 | UKK → NQZ | May 26, 02:29 UTC | May 27, 00:30 UTC | 22h 0m |
| 2026-05-26 | KZR345 | NQZ → UKK | May 26, 00:35 UTC | May 26, 01:05 UTC | 30m |
| 2026-05-24 | KZR302 | UKK → ALA | May 24, 09:00 UTC | May 24, 09:30 UTC | 30m |
| 2026-05-24 | KZR301 | ALA → UKK | May 24, 07:05 UTC | May 24, 07:35 UTC | 30m |
| 2026-05-23 | KZR302 | UKK → ALA | May 23, 09:00 UTC | May 24, 07:35 UTC | 22h 36m |
| 2026-05-23 | KZR301 | ALA → UKK | May 23, 07:10 UTC | May 23, 07:35 UTC | 25m |
| 2026-05-21 | KZR142 | TBS → ALA | May 21, 09:40 UTC | May 21, 10:10 UTC | 30m |
| 2026-05-21 | KZR141 | ALA → TBS | May 21, 08:00 UTC | May 21, 08:30 UTC | 30m |
| 2026-05-19 | KZR277 | GUW → GYD | May 19, 16:50 UTC | May 19, 17:30 UTC | 40m |
| 2026-05-16 | KZR277 | GUW → GYD | May 16, 16:55 UTC | May 16, 20:25 UTC | 3h 30m |
| 2026-05-14 | KZR140 | TBS → ALA | May 14, 18:25 UTC | May 14, 18:55 UTC | 30m |
| 2026-05-14 | KZR139 | ALA → TBS | May 14, 09:10 UTC | May 14, 17:20 UTC | 8h 10m |
| 2026-05-14 | KZR301 | ALA → UKK | May 14, 07:10 UTC | May 14, 07:35 UTC | 25m |
| 2026-05-13 | KZR302 | UKK → ALA | May 13, 08:55 UTC | May 14, 07:35 UTC | 22h 40m |
| 2026-05-13 | KZR301 | ALA → UKK | May 13, 07:05 UTC | May 13, 07:30 UTC | 25m |
| 2026-05-12 | KZR860 | SCO → ALA | May 12, 20:10 UTC | May 12, 20:20 UTC | 10m |
| 2026-05-12 | KZR859 | ALA → SCO | May 12, 18:10 UTC | May 12, 18:30 UTC | 20m |
| 2026-05-09 | KZR886 | GUW → ALA | May 9, 19:55 UTC | May 9, 20:10 UTC | 15m |
| 2026-05-08 | KZR302 | UKK → ALA | May 8, 08:49 UTC | May 8, 09:19 UTC | 30m |
| 2026-05-08 | KZR301 | ALA → UKK | May 8, 07:04 UTC | May 8, 07:29 UTC | 25m |
| 2026-05-06 | KZR908 | DEL → ALA | May 6, 06:40 UTC | May 6, 07:20 UTC | 40m |
| 2026-05-06 | KZR907 | ALA → DEL | May 6, 04:10 UTC | May 6, 04:55 UTC | 45m |
| 2026-05-03 | KZR964 | DEL → ALA | May 3, 21:10 UTC | May 3, 21:50 UTC | 40m |
| 2026-05-03 | KZR963 | ALA → DEL | May 3, 17:50 UTC | May 3, 19:45 UTC | 1h 55m |
| 2026-04-28 | KZR268 | PEK → ALA | Apr 28, 22:20 UTC | Apr 28, 22:35 UTC | 15m |
| 2026-04-28 | KZR267 | ALA → PEK | Apr 28, 20:10 UTC | Apr 28, 20:30 UTC | 20m |
| 2026-04-24 | KZR140 | TBS → ALA | Apr 24, 18:45 UTC | Apr 24, 19:10 UTC | 25m |
| 2026-04-24 | KZR139 | ALA → TBS | Apr 24, 17:10 UTC | Apr 24, 17:30 UTC | 20m |
| 2026-04-24 | KZR302 | UKK → ALA | Apr 24, 08:45 UTC | Apr 24, 09:10 UTC | 25m |
| 2026-04-24 | KZR301 | ALA → UKK | Apr 24, 06:55 UTC | Apr 24, 07:20 UTC | 25m |
| 2026-04-21 | KZR278 | GYD → GUW | Apr 21, 19:45 UTC | Apr 21, 20:15 UTC | 30m |
| 2026-04-21 | KZR277 | - | Apr 21, 16:45 UTC | Apr 21, 17:20 UTC | 35m |
| 2026-04-21 | KZR870 | IST → GUW | Apr 21, 10:55 UTC | Apr 21, 13:40 UTC | 2h 45m |
| 2026-04-21 | KZR869 | GUW → IST | Apr 21, 06:00 UTC | Apr 21, 07:15 UTC | 1h 15m |
| 2026-04-21 | KZR869 | GUW → IST | Apr 21, 04:50 UTC | Apr 21, 05:20 UTC | 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 EI-KIA page for operator, model, and routing details .