Apparatus

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sensors Mode-S transponder

48C228

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-RSI · BOEING 737-800

Hex
48C228
Octal
22141050
Decimal
4,768,296
Country
PL
Tail
SP-RSI
Type
B738
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
664
Distinct callsigns
20
Country
PL
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S 48C228.

Country allocation

The ICAO 24-bit address 48C228 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 20 distinct

Callsign Airline Flights Last seen
RYR6XW Ryanair 10 2026-06-13
RYR76CE Ryanair 9 2026-07-24
RYR61CH Ryanair 9 2026-07-24
RYR5XC Ryanair 7 2026-06-13
RYR7DC - 6 2026-07-15
RYR1WP Ryanair 6 2026-07-26
RYR1EK Ryanair 6 2026-07-26
RYR10VZ - 6 2026-07-15
RYR95LQ - 5 2026-07-16
RYR7QU Ryanair 5 2026-07-26
RYR68VC Ryanair 5 2026-04-21
RYR5DZ Ryanair 5 2026-07-26
RYR2GC Ryanair 5 2026-04-21
RYR2CW - 5 2026-07-16
RYR99PH Ryanair 4 2026-07-20
RYR909C Ryanair 4 2026-07-26
RYR88MT - 4 2026-06-29
RYR7492 - 4 2026-06-29
RYR741D Ryanair 4 2026-06-07
RYR63TZ Ryanair 4 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RYR909C BLQ → SOF Jul 26, 21:05 UTCJul 26, 22:00 UTC55m
2026-07-26 RYR63TZ BRU → DUB Jul 26, 18:35 UTCJul 26, 20:10 UTC1h 35m
2026-07-26 RYR3MU ALC → LTN Jul 26, 16:10 UTCJul 26, 17:35 UTC1h 25m
2026-07-26 RYR3662 SOF → BGY Jul 26, 13:20 UTCJul 26, 15:05 UTC1h 45m
2026-07-26 RYR1WP BER → SOF Jul 26, 09:50 UTCJul 26, 11:35 UTC1h 45m
2026-07-26 RYR1EK AGP → FKB Jul 26, 07:15 UTCJul 26, 09:05 UTC1h 50m
2026-07-26 RYR7QU PMI → NUE Jul 26, 05:10 UTCJul 26, 06:30 UTC1h 20m
2026-07-26 RYR5DZ DUB → BIQ Jul 26, 02:45 UTCJul 26, 04:05 UTC1h 20m
2026-07-25 RYR6NP BGY → OPO Jul 25, 19:55 UTCJul 25, 20:50 UTC55m
2026-07-25 RYR5643 BER → CHQ Jul 25, 18:00 UTCJul 25, 19:10 UTC1h 10m
2026-07-25 RYR7XZ STN → CHQ Jul 25, 14:35 UTCJul 25, 16:45 UTC2h 10m
2026-07-25 RYR1EG SVQ → STN Jul 25, 11:20 UTCJul 25, 13:40 UTC2h 20m
2026-07-25 RYR14VD JSI → SOF Jul 25, 09:40 UTCJul 25, 10:20 UTC40m
2026-07-25 RYR4791 SOF → JSI Jul 25, 08:10 UTCJul 25, 08:35 UTC25m
2026-07-25 RYR4791 SOF → JSI Jul 25, 03:45 UTCJul 25, 05:00 UTC1h 15m
2026-07-24 RYR61CH KIR → STN Jul 24, 19:20 UTCJul 24, 21:55 UTC2h 35m
2026-07-24 RYR76CE SOF → STN Jul 24, 15:25 UTCJul 24, 18:20 UTC2h 55m
2026-07-24 RYR6TP LBA → ZAD Jul 24, 12:15 UTCJul 24, 13:25 UTC1h 10m
2026-07-24 RYR9SB FNI → EDI Jul 24, 09:45 UTCJul 24, 11:00 UTC1h 15m
2026-07-24 RYR3VN BLQ → PMO Jul 24, 06:40 UTCJul 24, 08:40 UTC2h 0m
2026-07-24 RYR6EX PMO → CRL Jul 24, 03:40 UTCJul 24, 05:55 UTC2h 15m
2026-07-23 RYR14EX CPH → SOF Jul 23, 19:50 UTCJul 23, 21:55 UTC2h 5m
2026-07-23 RYR3607 SOF → CPH Jul 23, 16:15 UTCJul 23, 18:45 UTC2h 30m
2026-07-23 RYR7QU - Jul 23, 14:05 UTCJul 23, 15:20 UTC1h 15m
2026-07-23 RYR5DZ - Jul 23, 11:45 UTCJul 23, 13:10 UTC1h 25m
2026-07-23 RYR3622 AGP → SOF Jul 23, 07:35 UTCJul 23, 10:25 UTC2h 50m
2026-07-23 RYR8UQ PRG → NAP Jul 23, 03:00 UTCJul 23, 06:35 UTC3h 35m
2026-07-22 RYR9VC - Jul 22, 19:20 UTCJul 22, 20:45 UTC1h 25m
2026-07-22 RYR8UU SOF → TSF Jul 22, 16:55 UTCJul 22, 18:25 UTC1h 30m
2026-07-22 RYR8RF SOF → STN Jul 22, 14:05 UTCJul 22, 16:15 UTC2h 10m
2026-07-22 RYR5TK SOF → EIN Jul 22, 03:20 UTCJul 22, 13:20 UTC10h 0m
2026-07-21 RYR86GG RAK → KRK Jul 21, 18:50 UTCJul 21, 21:20 UTC2h 30m
2026-07-21 RYR51SL LIS → VIE Jul 21, 14:25 UTCJul 21, 17:15 UTC2h 50m
2026-07-21 RYR1UN - Jul 21, 12:15 UTCJul 21, 13:10 UTC55m
2026-07-21 RYR290W SOF → BRI Jul 21, 10:30 UTCJul 21, 11:30 UTC1h 0m
2026-07-21 RYR61CH KIR → STN Jul 21, 06:55 UTCJul 21, 09:30 UTC2h 35m
2026-07-21 RYR76CE SOF → STN Jul 21, 03:00 UTCJul 21, 05:55 UTC2h 55m
2026-07-20 RYR6499 TNG → BOD Jul 20, 16:45 UTCJul 20, 20:20 UTC3h 35m
2026-07-20 RYR99PH SOF → RAK Jul 20, 10:45 UTCJul 20, 14:40 UTC3h 55m
2026-07-20 RYR61CH - Jul 20, 06:45 UTCJul 20, 09:20 UTC2h 35m
2026-07-20 RYR76CE - Jul 20, 02:50 UTCJul 20, 05:40 UTC2h 50m
2026-07-19 RYR2VZ BGY → ATH Jul 19, 19:20 UTCJul 19, 21:35 UTC2h 15m
2026-07-19 RYR4383 SOF → BVA Jul 19, 16:00 UTCJul 19, 18:35 UTC2h 35m
2026-07-19 RYR6TP RHO → SOF Jul 19, 13:55 UTCJul 19, 15:10 UTC1h 15m
2026-07-19 RYR9SB FNI → EDI Jul 19, 11:45 UTCJul 19, 13:00 UTC1h 15m
2026-07-19 RYR7W BCN → SOF Jul 19, 07:15 UTCJul 19, 09:30 UTC2h 15m
2026-07-19 RYR8AA - Jul 19, 03:30 UTCJul 19, 06:05 UTC2h 35m
2026-07-18 RYR6NP BUD → SOF Jul 18, 19:50 UTCJul 18, 21:00 UTC1h 10m
2026-07-18 RYR5643 - Jul 18, 18:10 UTCJul 18, 19:05 UTC55m
2026-07-18 RYR7XZ - Jul 18, 15:10 UTCJul 18, 17:15 UTC2h 5m

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-RSI page for operator, model, and routing details .

Mode-S 48C228 frequently asked

What is Mode-S code 48C228?
48C228 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-RSI.
Where is Mode-S 48C228 registered?
Mode-S code 48C228 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C228 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C228, octal 22141050, decimal 4,768,296.
What flights does 48C228 operate?
Mode-S 48C228 has broadcast 20 distinct callsigns, including RYR6XW, RYR76CE, RYR61CH, RYR5XC, RYR7DC.