sensors Mode-S transponder

48C2B8

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-RZV · BOEING 737 MAX 8

Hex
48C2B8
Octal
22141270
Decimal
4,768,440
Country
PL
Tail
SP-RZV
Type
B38M
No current signal · last broadcast 12h ago
Flights observed
16
Distinct callsigns
10
Country
PL
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 48C2B8.

Country allocation

The ICAO 24-bit address 48C2B8 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 10 distinct

Callsign Airline Flights Last seen
RYR7UM - 3 2026-04-13
RYR9017 - 2 2026-04-13
RYR8BY - 2 2026-04-14
RYR66EF - 2 2026-04-14
RYR2UH - 2 2026-04-13
RYR9016 - 1 2026-04-13
RYR5142 - 1 2026-04-12
RYR4RW - 1 2026-04-13
RYR392T - 1 2026-04-13
RYR2UU Ryanair 1 2026-04-12

Recent flights last 16

DateFlightRouteTakeoffLandingDuration
2026-04-14 RYR8BY - Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 RYR8BY - Apr 14, 08:50 UTCApr 14, 09:05 UTC15m
2026-04-14 RYR66EF - Apr 14, 07:10 UTCApr 14, 07:30 UTC20m
2026-04-14 RYR66EF - Apr 14, 05:15 UTCApr 14, 07:10 UTC1h 55m
2026-04-13 RYR392T NCL → KRK Apr 13, 20:25 UTCApr 13, 22:35 UTC2h 10m
2026-04-13 RYR4RW KRK → NCL Apr 13, 17:25 UTCApr 13, 19:40 UTC2h 15m
2026-04-13 RYR7UM - Apr 13, 16:15 UTCApr 13, 16:35 UTC20m
2026-04-13 RYR7UM - Apr 13, 15:50 UTCApr 13, 16:35 UTC45m
2026-04-13 RYR7UM - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 RYR2UH - Apr 13, 13:15 UTCApr 13, 14:20 UTC1h 5m
2026-04-13 RYR2UH KRK → KRK Apr 13, 13:00 UTCApr 13, 13:05 UTC5m
2026-04-13 RYR9016 - Apr 13, 09:30 UTCApr 13, 11:55 UTC2h 25m
2026-04-13 RYR9017 - Apr 13, 07:55 UTCApr 13, 08:25 UTC30m
2026-04-13 RYR9017 - Apr 13, 05:45 UTCApr 13, 08:15 UTC2h 30m
2026-04-12 RYR2UU NOC → EMA Apr 12, 19:20 UTCApr 12, 20:10 UTC50m
2026-04-12 RYR5142 - Apr 12, 17:15 UTCApr 12, 18:25 UTC1h 10m

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 SP-RZV page for operator, model, and routing details .

Mode-S 48C2B8 frequently asked

What is Mode-S code 48C2B8?
48C2B8 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-RZV.
Where is Mode-S 48C2B8 registered?
Mode-S code 48C2B8 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C2B8 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C2B8, octal 22141270, decimal 4,768,440.
What flights does 48C2B8 operate?
Mode-S 48C2B8 has broadcast 10 distinct callsigns, including RYR7UM, RYR9017, RYR8BY, RYR66EF, RYR2UH.