sensors Mode-S transponder
4CA7C6
ICAO 24-bit transponder address · allocated to Ireland
Currently assigned to EI-KGK · AIRBUS A-321neo
- Hex
- 4CA7C6
- Octal
- 23123706
- Decimal
- 5,023,686
- Country
- IE
- Tail
- EI-KGK
- Type
- A21N
- Flights observed
- 193
- Distinct callsigns
- 20
- Country
- IE
- Last broadcast
- Jul 25, 23:25 UTC
Last known position
Country allocation
The ICAO 24-bit address 4CA7C6 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 |
|---|---|---|---|
| KZR227 | - | 16 | 2026-07-01 |
| KZR921 | Air Astana | 14 | 2026-05-06 |
| KZR917 | Air Astana | 13 | 2026-06-29 |
| KZR911 | Air Astana | 10 | 2026-07-12 |
| KZR922 | Air Astana | 9 | 2026-05-07 |
| KZR638 | Air Astana | 8 | 2026-07-02 |
| KZR637 | Air Astana | 8 | 2026-07-01 |
| KZR199 | - | 8 | 2026-04-28 |
| KZR918 | - | 7 | 2026-06-29 |
| KZR555 | - | 7 | 2026-06-26 |
| KZR931 | Air Astana | 5 | 2026-07-24 |
| KZR912 | - | 5 | 2026-07-07 |
| KZR238 | Air Astana | 5 | 2026-06-03 |
| KZR8002 | Air Astana | 4 | 2026-06-30 |
| KZR585 | Air Astana | 4 | 2026-05-13 |
| KZR563 | - | 4 | 2026-07-03 |
| KZR932 | Air Astana | 3 | 2026-07-25 |
| KZR914 | - | 3 | 2026-07-18 |
| KZR913 | - | 3 | 2026-07-18 |
| KZR267 | Air Astana | 3 | 2026-05-26 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | KZR932 | BKK → ALA | Jul 25, 03:45 UTC | Jul 25, 23:25 UTC | 19h 40m |
| 2026-07-24 | KZR931 | ALA → BKK | Jul 24, 10:10 UTC | Jul 25, 02:00 UTC | 15h 50m |
| 2026-07-24 | KZR635 | ALA → TGD | Jul 24, 05:05 UTC | Jul 24, 08:15 UTC | 3h 10m |
| 2026-07-21 | KZR281 | ALA → PVG | Jul 21, 17:50 UTC | Jul 21, 23:35 UTC | 5h 45m |
| 2026-07-20 | KZR600 | - | Jul 20, 01:10 UTC | Jul 20, 05:55 UTC | 4h 45m |
| 2026-07-18 | KZR914 | - | Jul 18, 09:45 UTC | Jul 18, 11:40 UTC | 1h 55m |
| 2026-07-18 | KZR913 | - | Jul 18, 05:30 UTC | Jul 18, 08:00 UTC | 2h 30m |
| 2026-07-16 | KZR194 | - | Jul 16, 22:15 UTC | Jul 17, 17:09 UTC | 18h 55m |
| 2026-07-16 | KZR2205 | - | Jul 16, 01:55 UTC | Jul 16, 22:25 UTC | 20h 30m |
| 2026-07-14 | KZR282 | - | Jul 14, 17:55 UTC | Jul 14, 23:45 UTC | 5h 49m |
| 2026-07-13 | KZR914 | - | Jul 13, 09:30 UTC | Jul 13, 11:25 UTC | 1h 55m |
| 2026-07-12 | KZR913 | - | Jul 12, 18:55 UTC | Jul 13, 07:50 UTC | 12h 55m |
| 2026-07-12 | KZR911 | ALA → IST | Jul 12, 16:45 UTC | Jul 12, 17:10 UTC | 25m |
| 2026-07-12 | KZR932 | - | Jul 12, 03:40 UTC | Jul 12, 16:10 UTC | 12h 30m |
| 2026-07-11 | KZR931 | - | Jul 11, 21:35 UTC | Jul 12, 01:55 UTC | 4h 20m |
| 2026-07-11 | KZR931 | - | Jul 11, 04:25 UTC | Jul 12, 01:55 UTC | 21h 30m |
| 2026-07-10 | KZR636 | - | Jul 10, 09:55 UTC | Jul 11, 04:40 UTC | 18h 45m |
| 2026-07-09 | KZR635 | - | Jul 9, 19:05 UTC | Jul 10, 08:05 UTC | 13h 0m |
| 2026-07-08 | KZR911 | ALA → IST | Jul 8, 22:55 UTC | Jul 9, 17:20 UTC | 18h 25m |
| 2026-07-08 | KZR914 | - | Jul 8, 09:35 UTC | Jul 8, 22:55 UTC | 13h 20m |
| 2026-07-08 | KZR913 | - | Jul 8, 07:30 UTC | Jul 8, 07:55 UTC | 25m |
| 2026-07-07 | KZR912 | - | Jul 7, 19:10 UTC | Jul 8, 07:00 UTC | 11h 50m |
| 2026-07-07 | KZR911 | ALA → IST | Jul 7, 17:05 UTC | Jul 7, 17:25 UTC | 20m |
| 2026-07-07 | KZR932 | - | Jul 7, 03:35 UTC | Jul 7, 16:30 UTC | 12h 55m |
| 2026-07-06 | KZR931 | - | Jul 6, 21:40 UTC | Jul 7, 02:05 UTC | 4h 25m |
| 2026-07-06 | KZR931 | - | Jul 6, 00:10 UTC | Jul 6, 23:30 UTC | 23h 20m |
| 2026-07-03 | KZR563 | - | Jul 3, 23:25 UTC | Jul 4, 10:05 UTC | 10h 40m |
| 2026-07-03 | KZR563 | - | Jul 3, 05:35 UTC | Jul 4, 03:45 UTC | 22h 10m |
| 2026-07-03 | KZR563 | - | Jul 3, 05:25 UTC | Jul 4, 03:30 UTC | 22h 5m |
| 2026-07-03 | KZR563 | - | Jul 3, 01:35 UTC | Jul 4, 01:30 UTC | 23h 55m |
| 2026-07-03 | KZR599 | - | Jul 3, 00:50 UTC | Jul 3, 23:30 UTC | 22h 40m |
| 2026-07-02 | KZR638 | TGD → NQZ | Jul 2, 12:05 UTC | Jul 3, 05:35 UTC | 17h 30m |
| 2026-07-02 | KZR638 | TGD → NQZ | Jul 2, 09:40 UTC | Jul 3, 05:35 UTC | 19h 55m |
| 2026-07-01 | KZR637 | NQZ → TGD | Jul 1, 16:10 UTC | Jul 2, 07:35 UTC | 15h 25m |
| 2026-07-01 | KZR227 | - | Jul 1, 13:45 UTC | Jul 1, 14:05 UTC | 20m |
| 2026-07-01 | KZR227 | - | Jul 1, 10:00 UTC | Jul 1, 10:25 UTC | 25m |
| 2026-06-30 | KZR8002 | LCA → NQZ | Jun 30, 13:35 UTC | Jul 1, 10:25 UTC | 20h 50m |
| 2026-06-30 | KZR8002 | LCA → NQZ | Jun 30, 13:20 UTC | Jul 1, 10:25 UTC | 21h 5m |
| 2026-06-29 | KZR918 | - | Jun 29, 20:04 UTC | Jun 30, 11:55 UTC | 15h 51m |
| 2026-06-29 | KZR917 | NQZ → IST | Jun 29, 18:05 UTC | Jun 29, 18:19 UTC | 15m |
| 2026-06-29 | KZR917 | NQZ → IST | Jun 29, 05:40 UTC | Jun 29, 17:30 UTC | 11h 50m |
| 2026-06-28 | KZR584 | - | Jun 28, 11:35 UTC | Jun 29, 06:09 UTC | 18h 35m |
| 2026-06-28 | KZR638 | TGD → NQZ | Jun 28, 09:34 UTC | Jun 29, 06:09 UTC | 20h 35m |
| 2026-06-28 | KZR638 | TGD → NQZ | Jun 28, 09:15 UTC | Jun 29, 06:09 UTC | 20h 55m |
| 2026-06-27 | KZR637 | NQZ → TGD | Jun 27, 16:10 UTC | Jun 28, 07:25 UTC | 15h 15m |
| 2026-06-27 | KZR227 | - | Jun 27, 13:35 UTC | Jun 27, 13:55 UTC | 20m |
| 2026-06-27 | KZR227 | - | Jun 27, 10:00 UTC | Jun 27, 10:19 UTC | 20m |
| 2026-06-26 | KZR556 | - | Jun 26, 11:40 UTC | Jun 27, 10:19 UTC | 22h 40m |
| 2026-06-26 | KZR555 | - | Jun 26, 02:05 UTC | Jun 26, 12:24 UTC | 10h 20m |
| 2026-06-25 | KZR555 | - | Jun 25, 11:39 UTC | Jun 26, 11:20 UTC | 23h 40m |
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-KGK page for operator, model, and routing details .