Apparatus

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sensors Mode-S transponder

48C1A5

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-RNF · BOEING 737-800

Hex
48C1A5
Octal
22140645
Decimal
4,768,165
Country
PL
Tail
SP-RNF
Type
B738
No current signal · last broadcast 3h ago
Flights observed
603
Distinct callsigns
20
Country
PL
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 48C1A5.

Country allocation

The ICAO 24-bit address 48C1A5 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
RYR9KY Ryanair 8 2026-06-10
RYR857U Ryanair 7 2026-06-11
RYR5YR Ryanair 7 2026-06-08
RYR45BN - 7 2026-06-10
RYR2FY Ryanair 7 2026-06-11
RYR6RJ Ryanair 6 2026-06-08
RYR8LV Ryanair 5 2026-06-11
RYR4899 Ryanair 5 2026-05-01
RYR38WP - 5 2026-06-11
RYR9LX Ryanair 4 2026-05-01
RYR9EP Ryanair 4 2026-06-11
RYR92YX Ryanair 4 2026-04-29
RYR75YT Ryanair 4 2026-05-01
RYR74XG Ryanair 4 2026-06-11
RYR5939 Ryanair 4 2026-05-01
RYR5938 Ryanair 4 2026-05-01
RYR5933 Ryanair 4 2026-05-23
RYR5932 Ryanair 4 2026-05-23
RYR3Q Ryanair 4 2026-05-05
RYR3HM Ryanair 4 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 RYR7GN ATH → WRO Jul 14, 20:45 UTCJul 14, 23:10 UTC2h 24m
2026-07-14 RYR691H WRO → ATH Jul 14, 17:50 UTCJul 14, 20:00 UTC2h 10m
2026-07-14 RYR4BD - Jul 14, 14:10 UTCJul 14, 16:15 UTC2h 5m
2026-07-14 RYR39DD - Jul 14, 10:55 UTCJul 14, 13:15 UTC2h 20m
2026-07-14 RYR2BR - Jul 14, 08:35 UTCJul 14, 10:05 UTC1h 30m
2026-07-14 RYR4841 - Jul 14, 06:10 UTCJul 14, 07:25 UTC1h 15m
2026-07-13 RYR14ZD - Jul 13, 21:40 UTCJul 14, 00:00 UTC2h 20m
2026-07-13 RYR57SN - Jul 13, 18:10 UTCJul 13, 20:40 UTC2h 30m
2026-07-13 RYR9768 - Jul 13, 15:40 UTCJul 13, 17:15 UTC1h 35m
2026-07-13 RYR275Q WRO → LTN Jul 13, 12:20 UTCJul 13, 14:15 UTC1h 55m
2026-07-13 RYR753C ALC → WRO Jul 13, 08:35 UTCJul 13, 11:20 UTC2h 45m
2026-07-13 RYR6LZ - Jul 13, 04:20 UTCJul 13, 07:10 UTC2h 50m
2026-07-12 RYR6446 - Jul 12, 21:55 UTCJul 12, 23:30 UTC1h 35m
2026-07-12 RYR6447 WRO → PSR Jul 12, 19:45 UTCJul 12, 21:10 UTC1h 25m
2026-07-12 RYR14HU - Jul 12, 17:15 UTCJul 12, 18:45 UTC1h 30m
2026-07-12 RYR608Y - Jul 12, 14:30 UTCJul 12, 16:10 UTC1h 40m
2026-07-12 RYR40YG - Jul 12, 11:45 UTCJul 12, 13:35 UTC1h 50m
2026-07-12 RYR69XZ - Jul 12, 08:55 UTCJul 12, 10:55 UTC2h 0m
2026-07-12 RYR2WQ - Jul 12, 06:45 UTCJul 12, 08:10 UTC1h 25m
2026-07-12 RYR67HB WRO → TRF Jul 12, 04:35 UTCJul 12, 05:55 UTC1h 20m
2026-07-11 RYR27SB - Jul 11, 17:50 UTCJul 11, 20:20 UTC2h 30m
2026-07-11 RYR306U - Jul 11, 13:55 UTCJul 11, 16:20 UTC2h 25m
2026-07-11 RYR5LJ - Jul 11, 11:10 UTCJul 11, 12:45 UTC1h 35m
2026-07-11 RYR44MW - Jul 11, 08:50 UTCJul 11, 10:25 UTC1h 35m
2026-07-11 RYR4XY - Jul 11, 05:05 UTCJul 11, 06:30 UTC1h 25m
2026-07-10 RYR31CG - Jul 10, 20:15 UTCJul 10, 22:05 UTC1h 50m
2026-07-10 RYR34EJ - Jul 10, 17:10 UTCJul 10, 19:20 UTC2h 10m
2026-07-10 RYR21FQ - Jul 10, 14:50 UTCJul 10, 15:55 UTC1h 5m
2026-07-10 RYR9MV - Jul 10, 12:40 UTCJul 10, 13:50 UTC1h 10m
2026-07-10 RYR5SG - Jul 10, 09:25 UTCJul 10, 10:20 UTC55m
2026-07-10 RYR72GH - Jul 10, 07:40 UTCJul 10, 08:45 UTC1h 5m
2026-07-10 RYR76JH - Jul 10, 05:40 UTCJul 10, 06:05 UTC25m
2026-07-10 RYR79SY - Jul 10, 03:50 UTCJul 10, 04:25 UTC35m
2026-07-09 RYR9906 - Jul 9, 21:25 UTCJul 9, 22:30 UTC1h 5m
2026-07-09 RYR829J - Jul 9, 19:05 UTCJul 9, 20:35 UTC1h 30m
2026-07-09 RYR84TV - Jul 9, 15:05 UTCJul 9, 16:30 UTC1h 25m
2026-07-09 RYR2UP - Jul 9, 12:30 UTCJul 9, 14:10 UTC1h 40m
2026-07-09 RYR8332 - Jul 9, 07:50 UTCJul 9, 09:30 UTC1h 40m
2026-07-09 RYR1PM - Jul 9, 04:50 UTCJul 9, 07:00 UTC2h 10m
2026-07-08 RYR6NN - Jul 8, 22:05 UTCJul 8, 22:50 UTC45m
2026-07-08 RYR8436 - Jul 8, 20:05 UTCJul 8, 20:55 UTC50m
2026-07-08 RYR76JH - Jul 8, 18:05 UTCJul 8, 18:40 UTC35m
2026-07-08 RYR79SY - Jul 8, 16:25 UTCJul 8, 16:55 UTC30m
2026-07-08 RYR7YR - Jul 8, 14:05 UTCJul 8, 15:05 UTC1h 0m
2026-07-08 RYR38YL - Jul 8, 12:15 UTCJul 8, 13:20 UTC1h 5m
2026-07-08 RYR31CG - Jul 8, 09:15 UTCJul 8, 11:10 UTC1h 55m
2026-07-08 RYR34EJ - Jul 8, 05:50 UTCJul 8, 08:15 UTC2h 25m
2026-07-07 RYR210N - Jul 7, 22:25 UTCJul 7, 22:45 UTC20m
2026-07-07 RYR9701 - Jul 7, 20:50 UTCJul 7, 21:15 UTC25m
2026-07-07 RYR3JZ - Jul 7, 18:15 UTCJul 7, 19:30 UTC1h 15m

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

Mode-S 48C1A5 frequently asked

What is Mode-S code 48C1A5?
48C1A5 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-RNF.
Where is Mode-S 48C1A5 registered?
Mode-S code 48C1A5 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C1A5 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C1A5, octal 22140645, decimal 4,768,165.
What flights does 48C1A5 operate?
Mode-S 48C1A5 has broadcast 20 distinct callsigns, including RYR9KY, RYR857U, RYR5YR, RYR45BN, RYR2FY.