sensors Mode-S transponder
4CA812
ICAO 24-bit transponder address · allocated to Ireland
Currently assigned to EI-EKS · BOEING 737-800
- Hex
- 4CA812
- Octal
- 23124022
- Decimal
- 5,023,762
- Country
- IE
- Tail
- EI-EKS
- Type
- B738
- Flights observed
- 103
- Distinct callsigns
- 20
- Country
- IE
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 4CA812 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 |
|---|---|---|---|
| RYR8AU | Ryanair | 3 | 2026-04-18 |
| RYR773P | - | 3 | 2026-04-13 |
| RYR19EW | - | 3 | 2026-04-13 |
| RYR9AY | Ryanair | 2 | 2026-04-22 |
| RYR908N | Ryanair | 2 | 2026-04-14 |
| RYR822J | - | 2 | 2026-04-13 |
| RYR80FZ | Ryanair | 2 | 2026-04-17 |
| RYR7DU | Ryanair | 2 | 2026-04-17 |
| RYR6UK | - | 2 | 2026-04-15 |
| RYR6TB | Ryanair | 2 | 2026-04-16 |
| RYR6RH | Ryanair | 2 | 2026-04-14 |
| RYR65DV | - | 2 | 2026-04-16 |
| RYR63DQ | - | 2 | 2026-04-14 |
| RYR5054 | Ryanair | 2 | 2026-04-17 |
| RYR3UU | - | 2 | 2026-04-15 |
| RYR36TZ | Ryanair | 2 | 2026-04-18 |
| RYR29PG | Ryanair | 2 | 2026-04-22 |
| RYR11QJ | Ryanair | 2 | 2026-04-16 |
| RYR9WB | Ryanair | 1 | 2026-04-23 |
| RYR9SZ | Ryanair | 1 | 2026-04-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-27 | RYR103M | - | May 27, 12:20 UTC | May 27, 14:10 UTC | 1h 50m |
| 2026-04-29 | RYR9151 | - | Apr 29, 10:35 UTC | Apr 29, 11:10 UTC | 35m |
| 2026-04-28 | RYR3BW | AOI → NRN | Apr 28, 18:15 UTC | Apr 28, 19:15 UTC | 1h 0m |
| 2026-04-28 | RYR3LC | STN → DUB | Apr 28, 16:30 UTC | Apr 28, 17:25 UTC | 55m |
| 2026-04-28 | RYR1ZD | RMU → BHX | Apr 28, 12:15 UTC | Apr 28, 14:45 UTC | 2h 30m |
| 2026-04-28 | RYR35RC | STN → CLJ | Apr 28, 08:45 UTC | Apr 28, 10:45 UTC | 2h 0m |
| 2026-04-28 | RYR7GR | OTP → VIE | Apr 28, 07:05 UTC | Apr 28, 07:50 UTC | 45m |
| 2026-04-28 | RYR7PC | STN → EIN | Apr 28, 05:30 UTC | Apr 28, 06:15 UTC | 45m |
| 2026-04-27 | RYR13TR | STN → FUE | Apr 27, 15:35 UTC | Apr 27, 23:45 UTC | 8h 10m |
| 2026-04-27 | RYR51MC | EDI → BCN | Apr 27, 12:35 UTC | Apr 27, 14:35 UTC | 2h 0m |
| 2026-04-27 | RYR788K | STN → PMI | Apr 27, 09:20 UTC | Apr 27, 11:30 UTC | 2h 10m |
| 2026-04-27 | RYR6142 | FMO → STN | Apr 27, 07:25 UTC | Apr 27, 08:25 UTC | 1h 0m |
| 2026-04-27 | RYR724W | STN → FMO | Apr 27, 05:45 UTC | Apr 27, 06:30 UTC | 45m |
| 2026-04-26 | RYR39FX | AAR → STN | Apr 26, 19:30 UTC | Apr 26, 20:50 UTC | 1h 20m |
| 2026-04-26 | RYR9SE | STN → AAR | Apr 26, 17:25 UTC | Apr 26, 18:40 UTC | 1h 15m |
| 2026-04-26 | RYR66HC | CGN → STN | Apr 26, 15:35 UTC | Apr 26, 16:30 UTC | 55m |
| 2026-04-26 | RYR64LV | STN → CGN | Apr 26, 13:40 UTC | Apr 26, 14:35 UTC | 55m |
| 2026-04-26 | RYR5QM | OTP → STN | Apr 26, 09:45 UTC | Apr 26, 12:45 UTC | 3h 0m |
| 2026-04-26 | RYR19AA | STN → OTP | Apr 26, 06:00 UTC | Apr 26, 08:40 UTC | 2h 40m |
| 2026-04-25 | RYR9811 | BCN → STN | Apr 25, 21:15 UTC | Apr 25, 23:10 UTC | 1h 55m |
| 2026-04-25 | RYR39JM | - | Apr 25, 18:15 UTC | Apr 25, 20:00 UTC | 1h 45m |
| 2026-04-25 | RYR2KN | BGY → DUB | Apr 25, 15:10 UTC | Apr 25, 17:25 UTC | 2h 15m |
| 2026-04-25 | RYR1LP | NCE → STN | Apr 25, 08:00 UTC | Apr 25, 10:30 UTC | 2h 30m |
| 2026-04-25 | RYR79GF | ALC → DUB | Apr 25, 04:15 UTC | Apr 25, 06:40 UTC | 2h 25m |
| 2026-04-24 | RYR89XK | BER → RAK | Apr 24, 11:45 UTC | Apr 24, 21:35 UTC | 9h 50m |
| 2026-04-23 | RYR127K | RAK → BER | Apr 23, 22:25 UTC | Apr 24, 10:10 UTC | 11h 45m |
| 2026-04-23 | RYR9WB | EMA → NOC | Apr 23, 17:55 UTC | Apr 23, 21:45 UTC | 3h 50m |
| 2026-04-23 | RYR9SZ | MRS → CRL | Apr 23, 09:10 UTC | Apr 23, 16:40 UTC | 7h 30m |
| 2026-04-23 | RYR3845 | RAK → BVA | Apr 23, 00:05 UTC | Apr 23, 08:10 UTC | 8h 6m |
| 2026-04-22 | RYR29PG | BCN → RAK | Apr 22, 19:20 UTC | Apr 22, 23:10 UTC | 3h 50m |
| 2026-04-22 | RYR9AY | TFS → VIE | Apr 22, 15:50 UTC | Apr 22, 17:35 UTC | 1h 45m |
| 2026-04-22 | RYR54FF | CRL → RAK | Apr 22, 10:35 UTC | Apr 22, 13:30 UTC | 2h 55m |
| 2026-04-21 | RYR7AC | VIE → DUB | Apr 21, 17:25 UTC | Apr 22, 09:40 UTC | 16h 15m |
| 2026-04-21 | RYR44SX | RAK → BRU | Apr 21, 09:45 UTC | Apr 21, 16:10 UTC | 6h 25m |
| 2026-04-20 | RYR29PG | BCN → RAK | Apr 20, 21:35 UTC | Apr 21, 08:35 UTC | 11h 0m |
| 2026-04-20 | RYR9AY | TFS → VIE | Apr 20, 16:35 UTC | Apr 20, 20:25 UTC | 3h 50m |
| 2026-04-20 | RYR2VR | SVQ → MAN | Apr 20, 10:35 UTC | Apr 20, 15:25 UTC | 4h 50m |
| 2026-04-19 | RYR1596 | CGN → RAK | Apr 19, 21:00 UTC | Apr 20, 09:25 UTC | 12h 25m |
| 2026-04-19 | RYR4MH | LPL → TFS | Apr 19, 11:45 UTC | Apr 19, 19:50 UTC | 8h 5m |
| 2026-04-19 | RYR9RE | RBA → SVQ | Apr 19, 08:55 UTC | Apr 19, 10:40 UTC | 1h 45m |
| 2026-04-19 | RYR421P | MAD → OPO | Apr 19, 07:00 UTC | Apr 19, 07:50 UTC | 50m |
| 2026-04-19 | RYR4BV | VCE → HEL | Apr 19, 04:55 UTC | Apr 19, 05:45 UTC | 50m |
| 2026-04-18 | RYR5482 | MAD → OPO | Apr 18, 21:10 UTC | Apr 18, 21:55 UTC | 45m |
| 2026-04-18 | RYR7TZ | - | Apr 18, 18:45 UTC | Apr 18, 19:30 UTC | 45m |
| 2026-04-18 | RYR9G | BVA → FAO | Apr 18, 17:10 UTC | Apr 18, 17:55 UTC | 45m |
| 2026-04-18 | RYR70PK | - | Apr 18, 13:50 UTC | Apr 18, 15:50 UTC | 2h 0m |
| 2026-04-18 | RYR36HP | - | Apr 18, 11:10 UTC | Apr 18, 12:55 UTC | 1h 45m |
| 2026-04-18 | RYR36TZ | CRL → MAD | Apr 18, 07:25 UTC | Apr 18, 08:45 UTC | 1h 20m |
| 2026-04-18 | RYR36TZ | CRL → MAD | Apr 18, 06:50 UTC | Apr 18, 08:45 UTC | 1h 55m |
| 2026-04-18 | RYR8AU | BZG → STN | Apr 18, 05:25 UTC | Apr 18, 05:55 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-EKS page for operator, model, and routing details .