sensors Mode-S transponder
505F15
ICAO 24-bit transponder address · allocated to Slovakia
Currently assigned to OM-MEX · BOEING 737-800
- Hex
- 505F15
- Octal
- 24057425
- Decimal
- 5,267,221
- Country
- SK
- Tail
- OM-MEX
- Type
- B738
- Flights observed
- 283
- Distinct callsigns
- 20
- Country
- SK
- Last broadcast
- 2h ago
Current position
Country allocation
The ICAO 24-bit address 505F15 falls within the block assigned to Slovakia (SK) by ICAO Annex 10, Volume III. Every aircraft registered in Slovakia 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 |
|---|---|---|---|
| ENT4214 | - | 11 | 2026-07-23 |
| ENT4213 | - | 11 | 2026-07-23 |
| ENT7159 | DAT Enterprise Limited | 9 | 2026-07-25 |
| ENT7160 | - | 8 | 2026-07-18 |
| ENT1373 | - | 8 | 2026-07-18 |
| ENT4861 | - | 7 | 2026-07-19 |
| ENT7190 | - | 6 | 2026-06-15 |
| ENT7189 | - | 4 | 2026-06-15 |
| ENT4901 | - | 4 | 2026-07-14 |
| ENT4862 | - | 4 | 2026-07-19 |
| ENT4082 | - | 4 | 2026-06-14 |
| ENT4902 | - | 3 | 2026-07-21 |
| ENT4362 | - | 3 | 2026-06-16 |
| ENT4361 | - | 3 | 2026-06-16 |
| ENT4169 | - | 3 | 2026-07-23 |
| ENT7319 | - | 2 | 2026-05-26 |
| ENT6UN | DAT Enterprise Limited | 2 | 2026-07-24 |
| ENT5JU | - | 2 | 2026-06-26 |
| ENT4YW | - | 2 | 2026-05-23 |
| ENT4080 | - | 2 | 2026-06-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | ENT7159 | KTW → AYT | Jul 25, 07:05 UTC | Jul 25, 07:15 UTC | 10m |
| 2026-07-25 | ENT4LM | - | Jul 25, 03:15 UTC | Jul 25, 05:40 UTC | 2h 25m |
| 2026-07-25 | ENT8SH | - | Jul 25, 00:00 UTC | Jul 25, 02:05 UTC | 2h 5m |
| 2026-07-24 | ENT8CJ | TLL → WAW | Jul 24, 15:25 UTC | Jul 24, 18:15 UTC | 2h 50m |
| 2026-07-24 | ENT6UN | SKG → KTW | Jul 24, 11:10 UTC | Jul 24, 13:50 UTC | 2h 40m |
| 2026-07-24 | ENT2GF | RHO → WAW | Jul 24, 07:10 UTC | Jul 24, 09:55 UTC | 2h 45m |
| 2026-07-24 | ENT7XF | - | Jul 24, 03:10 UTC | Jul 24, 05:35 UTC | 2h 25m |
| 2026-07-23 | ENT4169 | - | Jul 23, 15:50 UTC | Jul 24, 01:05 UTC | 9h 15m |
| 2026-07-23 | ENT4214 | - | Jul 23, 07:25 UTC | Jul 23, 09:55 UTC | 2h 30m |
| 2026-07-23 | ENT4213 | - | Jul 23, 03:35 UTC | Jul 23, 06:00 UTC | 2h 25m |
| 2026-07-22 | ENT1ZN | TFS → WAW | Jul 22, 21:50 UTC | Jul 23, 00:05 UTC | 2h 15m |
| 2026-07-22 | ENT4MU | WRO → HER | Jul 22, 18:15 UTC | Jul 22, 20:30 UTC | 2h 15m |
| 2026-07-22 | ENT5CZ | POZ → CHQ | Jul 22, 03:50 UTC | Jul 22, 14:00 UTC | 10h 10m |
| 2026-07-22 | ENT6XW | LPA → KTW | Jul 22, 00:05 UTC | Jul 22, 02:15 UTC | 2h 10m |
| 2026-07-21 | ENT2LN | - | Jul 21, 18:15 UTC | Jul 21, 20:15 UTC | 2h 0m |
| 2026-07-21 | ENT8MW | SKG → WAW | Jul 21, 14:35 UTC | Jul 21, 16:35 UTC | 2h 0m |
| 2026-07-21 | ENT4902 | - | Jul 21, 02:05 UTC | Jul 21, 11:00 UTC | 8h 55m |
| 2026-07-20 | ENT4002 | HRG → WAW | Jul 20, 15:25 UTC | Jul 20, 17:50 UTC | 2h 25m |
| 2026-07-20 | ENT4001 | WAW → AYT | Jul 20, 11:35 UTC | Jul 20, 14:15 UTC | 2h 40m |
| 2026-07-19 | ENT4861 | - | Jul 19, 16:55 UTC | Jul 20, 02:00 UTC | 9h 5m |
| 2026-07-19 | ENT4862 | - | Jul 19, 04:20 UTC | Jul 19, 13:30 UTC | 9h 10m |
| 2026-07-18 | ENT1373 | - | Jul 18, 15:55 UTC | Jul 19, 01:35 UTC | 9h 40m |
| 2026-07-18 | ENT7160 | - | Jul 18, 10:45 UTC | Jul 18, 13:35 UTC | 2h 50m |
| 2026-07-18 | ENT7159 | KTW → AYT | Jul 18, 07:00 UTC | Jul 18, 09:20 UTC | 2h 20m |
| 2026-07-18 | ENT7EC | - | Jul 18, 03:20 UTC | Jul 18, 05:40 UTC | 2h 20m |
| 2026-07-17 | ENT5WT | FCO → BRU | Jul 17, 23:55 UTC | Jul 18, 02:05 UTC | 2h 10m |
| 2026-07-17 | ENT7XE | - | Jul 17, 16:19 UTC | Jul 17, 17:50 UTC | 1h 30m |
| 2026-07-17 | ENT5PC | - | Jul 17, 13:25 UTC | Jul 17, 15:00 UTC | 1h 35m |
| 2026-07-17 | ENT4RS | - | Jul 17, 10:35 UTC | Jul 17, 12:15 UTC | 1h 40m |
| 2026-07-17 | ENT5YZ | KTW → TFS | Jul 17, 07:35 UTC | Jul 17, 09:04 UTC | 1h 30m |
| 2026-07-17 | ENT2NK | - | Jul 17, 04:35 UTC | Jul 17, 06:10 UTC | 1h 35m |
| 2026-07-17 | ENT7WS | SUF → WAW | Jul 17, 01:49 UTC | Jul 17, 03:20 UTC | 1h 30m |
| 2026-07-16 | ENT4NJ | - | Jul 16, 11:30 UTC | Jul 16, 23:10 UTC | 11h 40m |
| 2026-07-16 | ENT4214 | - | Jul 16, 07:30 UTC | Jul 16, 10:00 UTC | 2h 30m |
| 2026-07-16 | ENT4213 | - | Jul 16, 03:40 UTC | Jul 16, 06:00 UTC | 2h 20m |
| 2026-07-15 | ENT5PU | - | Jul 15, 21:25 UTC | Jul 15, 23:55 UTC | 2h 30m |
| 2026-07-15 | ENT7DF | - | Jul 15, 17:35 UTC | Jul 15, 19:40 UTC | 2h 5m |
| 2026-07-15 | ENT2SP | - | Jul 15, 11:25 UTC | Jul 15, 13:45 UTC | 2h 20m |
| 2026-07-15 | ENT6NX | - | Jul 15, 07:45 UTC | Jul 15, 09:55 UTC | 2h 10m |
| 2026-07-15 | ENT8SC | - | Jul 15, 03:40 UTC | Jul 15, 06:15 UTC | 2h 35m |
| 2026-07-15 | ENT4TF | - | Jul 15, 00:05 UTC | Jul 15, 02:15 UTC | 2h 10m |
| 2026-07-14 | ENT1HC | - | Jul 14, 17:30 UTC | Jul 14, 19:35 UTC | 2h 5m |
| 2026-07-14 | ENT5UG | - | Jul 14, 14:20 UTC | Jul 14, 16:20 UTC | 2h 0m |
| 2026-07-14 | ENT4901 | - | Jul 14, 01:55 UTC | Jul 14, 11:15 UTC | 9h 20m |
| 2026-07-13 | ENT5GN | - | Jul 13, 14:00 UTC | Jul 13, 15:50 UTC | 1h 50m |
| 2026-07-13 | ENT2FX | - | Jul 13, 10:50 UTC | Jul 13, 12:35 UTC | 1h 45m |
| 2026-07-12 | ENT4861 | - | Jul 12, 16:55 UTC | Jul 13, 02:10 UTC | 9h 15m |
| 2026-07-12 | ENT4862 | - | Jul 12, 04:20 UTC | Jul 12, 13:55 UTC | 9h 35m |
| 2026-07-11 | ENT1373 | - | Jul 11, 16:00 UTC | Jul 12, 01:15 UTC | 9h 15m |
| 2026-07-11 | ENT7160 | - | Jul 11, 10:30 UTC | Jul 11, 13:15 UTC | 2h 45m |
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 OM-MEX page for operator, model, and routing details .