sensors Mode-S transponder
48E971
ICAO 24-bit transponder address · allocated to Poland
- Hex
- 48E971
- Octal
- 22164561
- Decimal
- 4,778,353
- Country
- PL
- Flights observed
- 17
- Distinct callsigns
- 14
- Country
- PL
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 48E971 falls within the block assigned to Poland (PL) by ICAO Annex 10, Volume III. Every aircraft registered in Poland 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| RYS7211 | - | 1 | 2026-06-21 |
| RYS66 | Royal Sky | 1 | 2026-06-08 |
| RYS51 | Royal Sky | 1 | 2026-06-10 |
| RYS5037 | Royal Sky | 1 | 2026-06-11 |
| RYS3022 | - | 1 | 2026-06-16 |
| RYS3021 | - | 1 | 2026-06-16 |
| RYS28 | Royal Sky | 1 | 2026-06-23 |
| RYR95LQ | - | 1 | 2026-06-29 |
| RYR8LC | - | 1 | 2026-06-30 |
| RYR88MT | - | 1 | 2026-06-26 |
| RYR4PJ | Ryanair | 1 | 2026-05-28 |
| RYR40CR | - | 1 | 2026-06-29 |
| RYR2CW | Ryanair | 1 | 2026-05-15 |
| RYR14UU | - | 1 | 2026-07-11 |
Recent flights last 17
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-11 | RYR14UU | - | Jul 11, 19:55 UTC | Jul 11, 20:10 UTC | 15m |
| 2026-06-30 | RYR8LC | - | Jun 30, 10:35 UTC | Jun 30, 11:00 UTC | 25m |
| 2026-06-29 | RYR95LQ | - | Jun 29, 12:24 UTC | Jun 29, 16:10 UTC | 3h 45m |
| 2026-06-29 | RYR40CR | - | Jun 29, 04:45 UTC | Jun 29, 09:44 UTC | 5h 0m |
| 2026-06-26 | RYR88MT | - | Jun 26, 09:50 UTC | Jun 26, 09:59 UTC | 10m |
| 2026-06-25 | - | - | Jun 25, 20:59 UTC | Jun 25, 21:25 UTC | 25m |
| 2026-06-23 | RYS28 | GDN → KTW | Jun 23, 05:09 UTC | Jun 23, 15:19 UTC | 10h 10m |
| 2026-06-21 | RYS7211 | - | Jun 21, 14:59 UTC | Jun 22, 03:24 UTC | 12h 25m |
| 2026-06-16 | RYS3021 | - | Jun 16, 06:50 UTC | Jun 16, 06:59 UTC | 10m |
| 2026-06-16 | RYS3022 | - | Jun 16, 05:15 UTC | Jun 16, 05:30 UTC | 15m |
| 2026-06-11 | RYS5037 | SOF → CTA | Jun 11, 09:00 UTC | Jun 11, 09:05 UTC | 5m |
| 2026-06-10 | RYS51 | KTW → RHO | Jun 10, 19:10 UTC | Jun 10, 19:25 UTC | 15m |
| 2026-06-10 | - | - | Jun 10, 16:50 UTC | Jun 10, 17:05 UTC | 15m |
| 2026-06-09 | - | - | Jun 9, 14:00 UTC | Jun 10, 02:15 UTC | 12h 15m |
| 2026-06-08 | RYS66 | KTW → RHO | Jun 8, 15:40 UTC | Jun 9, 14:00 UTC | 22h 20m |
| 2026-05-28 | RYR4PJ | VIT → BGY | May 28, 10:15 UTC | May 28, 10:25 UTC | 10m |
| 2026-05-15 | RYR2CW | STN → EIN | May 15, 11:50 UTC | May 15, 15:00 UTC | 3h 9m |
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.