sensors Mode-S transponder
48C2AA
ICAO 24-bit transponder address · allocated to Poland
- Hex
- 48C2AA
- Octal
- 22141252
- Decimal
- 4,768,426
- Country
- PL
- Flights observed
- 7
- Distinct callsigns
- 5
- Country
- PL
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 48C2AA 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 5 distinct
Recent flights last 7
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-21 | RYR8PF | DUB → ALC | May 21, 22:05 UTC | May 22, 14:50 UTC | 16h 45m |
| 2026-05-21 | RYR8PF | DUB → ALC | May 21, 16:35 UTC | May 22, 14:50 UTC | 22h 15m |
| 2026-05-21 | RYR8832 | RAK → ACE | May 21, 16:20 UTC | May 22, 14:30 UTC | 22h 10m |
| 2026-05-21 | RYR1JV | BHX → DUB | May 21, 05:10 UTC | May 21, 22:20 UTC | 17h 10m |
| 2026-05-19 | RYR4178 | PFO → WMI | May 19, 10:25 UTC | May 19, 10:45 UTC | 20m |
| 2026-05-16 | RYR8414 | BVA → BUD | May 16, 11:01 UTC | May 16, 22:35 UTC | 11h 35m |
| 2026-05-14 | RYR1JV | BHX → DUB | May 14, 05:10 UTC | May 14, 22:05 UTC | 16h 55m |
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.