sensors Mode-S transponder
4CAC14
ICAO 24-bit transponder address · allocated to Ireland
Currently assigned to EI-KGE · AIRBUS A-321neo
- Hex
- 4CAC14
- Octal
- 23126024
- Decimal
- 5,024,788
- Country
- IE
- Tail
- EI-KGE
- Type
- A21N
- Flights observed
- 72
- Distinct callsigns
- 20
- Country
- IE
- Last broadcast
- 15h ago
Last known position
Country allocation
The ICAO 24-bit address 4CAC14 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 |
|---|---|---|---|
| KZR921 | Air Astana | 10 | 2026-05-29 |
| KZR157 | Air Astana | 8 | 2026-05-21 |
| KZR210 | Air Astana | 6 | 2026-05-28 |
| KZR922 | Air Astana | 5 | 2026-05-29 |
| KZR227 | Air Astana | 5 | 2026-04-27 |
| KZR174 | Air Astana | 5 | 2026-04-23 |
| KZR918 | Air Astana | 4 | 2026-05-25 |
| KZR663 | Air Astana | 4 | 2026-04-14 |
| KZR209 | Air Astana | 4 | 2026-05-28 |
| KZR664 | - | 3 | 2026-04-14 |
| KZR646 | Air Astana | 2 | 2026-05-13 |
| KZR228 | Air Astana | 2 | 2026-04-27 |
| KZR158 | Air Astana | 2 | 2026-05-25 |
| KZR917 | Air Astana | 1 | 2026-05-25 |
| KZR911 | - | 1 | 2026-04-18 |
| KZR645 | Air Astana | 1 | 2026-05-12 |
| KZR584 | - | 1 | 2026-04-13 |
| KZR583 | - | 1 | 2026-05-21 |
| KZR2100 | Air Astana | 1 | 2026-05-03 |
| KZR2090 | Air Astana | 1 | 2026-05-03 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | KZR922 | FRA → NQZ | May 29, 14:20 UTC | May 29, 18:05 UTC | 3h 45m |
| 2026-05-29 | KZR921 | NQZ → FRA | May 29, 06:50 UTC | May 29, 11:35 UTC | 4h 45m |
| 2026-05-28 | KZR921 | NQZ → FRA | May 28, 13:05 UTC | May 29, 11:35 UTC | 22h 30m |
| 2026-05-28 | KZR921 | NQZ → FRA | May 28, 12:45 UTC | May 29, 11:00 UTC | 22h 15m |
| 2026-05-28 | KZR210 | ICN → NQZ | May 28, 07:05 UTC | May 29, 07:00 UTC | 23h 55m |
| 2026-05-28 | KZR210 | ICN → NQZ | May 28, 06:50 UTC | May 28, 13:15 UTC | 6h 25m |
| 2026-05-28 | KZR209 | NQZ → ICN | May 28, 03:20 UTC | May 28, 03:40 UTC | 20m |
| 2026-05-27 | KZR209 | NQZ → ICN | May 27, 22:35 UTC | May 28, 02:30 UTC | 3h 55m |
| 2026-05-25 | KZR158 | CXR → NQZ | May 25, 19:15 UTC | May 26, 13:34 UTC | 18h 20m |
| 2026-05-25 | KZR918 | IST → NQZ | May 25, 09:30 UTC | May 25, 19:40 UTC | 10h 9m |
| 2026-05-25 | KZR917 | NQZ → IST | May 25, 06:00 UTC | May 25, 06:10 UTC | 10m |
| 2026-05-24 | KZR922 | FRA → NQZ | May 24, 14:05 UTC | May 25, 05:20 UTC | 15h 15m |
| 2026-05-24 | KZR921 | NQZ → FRA | May 24, 00:35 UTC | May 24, 11:25 UTC | 10h 50m |
| 2026-05-23 | KZR921 | NQZ → FRA | May 23, 14:35 UTC | May 24, 11:25 UTC | 20h 50m |
| 2026-05-21 | KZR583 | - | May 21, 22:15 UTC | May 22, 13:40 UTC | 15h 25m |
| 2026-05-21 | KZR158 | CXR → NQZ | May 21, 13:30 UTC | May 21, 22:40 UTC | 9h 10m |
| 2026-05-21 | KZR157 | NQZ → CXR | May 21, 01:05 UTC | May 21, 22:40 UTC | 21h 35m |
| 2026-05-20 | KZR157 | NQZ → CXR | May 20, 23:05 UTC | May 21, 22:40 UTC | 23h 35m |
| 2026-05-20 | KZR157 | NQZ → CXR | May 20, 21:30 UTC | May 21, 14:10 UTC | 16h 40m |
| 2026-05-18 | KZR157 | NQZ → CXR | May 18, 13:20 UTC | May 19, 08:50 UTC | 19h 29m |
| 2026-05-15 | KZR193 | ALA → CXR | May 15, 19:35 UTC | May 15, 23:45 UTC | 4h 10m |
| 2026-05-14 | KZR142 | TBS → ALA | May 14, 09:30 UTC | May 14, 09:55 UTC | 25m |
| 2026-05-13 | KZR646 | PQC → ALA | May 13, 13:05 UTC | May 14, 08:10 UTC | 19h 5m |
| 2026-05-13 | KZR646 | PQC → ALA | May 13, 11:45 UTC | May 14, 08:10 UTC | 20h 25m |
| 2026-05-12 | KZR645 | ALA → PQC | May 12, 13:10 UTC | May 13, 08:00 UTC | 18h 50m |
| 2026-05-11 | KZR157 | NQZ → CXR | May 11, 21:00 UTC | May 12, 13:45 UTC | 16h 45m |
| 2026-05-11 | KZR157 | NQZ → CXR | May 11, 12:55 UTC | May 11, 22:35 UTC | 9h 40m |
| 2026-05-09 | KZR918 | IST → NQZ | May 9, 05:05 UTC | May 9, 19:30 UTC | 14h 25m |
| 2026-05-08 | KZR918 | IST → NQZ | May 8, 13:15 UTC | May 9, 11:10 UTC | 21h 55m |
| 2026-05-07 | KZR210 | ICN → NQZ | May 7, 08:25 UTC | May 7, 13:00 UTC | 4h 35m |
| 2026-05-07 | KZR210 | ICN → NQZ | May 7, 06:55 UTC | May 7, 07:05 UTC | 10m |
| 2026-05-07 | KZR209 | NQZ → ICN | May 7, 02:10 UTC | May 7, 02:30 UTC | 20m |
| 2026-05-05 | KZR120 | TBS → NQZ | May 5, 21:01 UTC | May 5, 21:30 UTC | 30m |
| 2026-05-05 | KZR918 | IST → NQZ | May 5, 10:20 UTC | May 5, 19:50 UTC | 9h 30m |
| 2026-05-04 | KZR922 | FRA → NQZ | May 4, 13:55 UTC | May 5, 06:10 UTC | 16h 16m |
| 2026-05-03 | KZR921 | NQZ → FRA | May 3, 20:49 UTC | May 4, 11:25 UTC | 14h 35m |
| 2026-05-03 | KZR119 | NQZ → TBS | May 3, 08:10 UTC | May 3, 19:25 UTC | 11h 15m |
| 2026-05-03 | KZR2100 | ICN → NQZ | May 3, 06:45 UTC | May 3, 06:55 UTC | 10m |
| 2026-05-03 | KZR2090 | NQZ → ICN | May 3, 02:20 UTC | May 3, 02:45 UTC | 25m |
| 2026-05-01 | KZR922 | FRA → NQZ | May 1, 14:00 UTC | May 1, 18:10 UTC | 4h 10m |
| 2026-05-01 | KZR921 | NQZ → FRA | May 1, 07:05 UTC | May 1, 11:40 UTC | 4h 35m |
| 2026-04-30 | KZR921 | NQZ → FRA | Apr 30, 13:05 UTC | May 1, 11:40 UTC | 22h 35m |
| 2026-04-30 | KZR921 | NQZ → FRA | Apr 30, 12:40 UTC | May 1, 11:00 UTC | 22h 20m |
| 2026-04-30 | KZR210 | ICN → NQZ | Apr 30, 08:15 UTC | Apr 30, 13:10 UTC | 4h 55m |
| 2026-04-30 | KZR210 | ICN → NQZ | Apr 30, 07:00 UTC | Apr 30, 07:15 UTC | 15m |
| 2026-04-30 | KZR209 | NQZ → ICN | Apr 30, 03:30 UTC | Apr 30, 03:50 UTC | 20m |
| 2026-04-29 | KZR922 | FRA → NQZ | Apr 29, 13:55 UTC | Apr 30, 02:35 UTC | 12h 39m |
| 2026-04-29 | KZR921 | NQZ → FRA | Apr 29, 06:49 UTC | Apr 29, 11:40 UTC | 4h 51m |
| 2026-04-27 | KZR228 | PEK → NQZ | Apr 27, 20:40 UTC | Apr 27, 20:50 UTC | 10m |
| 2026-04-27 | KZR227 | NQZ → PEK | Apr 27, 18:30 UTC | Apr 27, 18:45 UTC | 15m |
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-KGE page for operator, model, and routing details .