Apparatus

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sensors Mode-S transponder

48C239

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-RSQ · BOEING 737-800

Hex
48C239
Octal
22141071
Decimal
4,768,313
Country
PL
Tail
SP-RSQ
Type
B738
Broadcasting now · callsign RYR9EP · 2,750 ft
Flights observed
638
Distinct callsigns
20
Country
PL
Last broadcast
1h ago

Current position

48C239 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 48C239 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
RYR9YU Ryanair 7 2026-05-28
RYR6MU Ryanair 7 2026-05-28
RYR7SY Ryanair 6 2026-05-18
RYR64HB Ryanair 6 2026-05-18
RYR3YB Ryanair 6 2026-05-18
RYR2LT Ryanair 6 2026-05-18
RYR2869 Ryanair 6 2026-04-16
RYR85VG - 5 2026-07-06
RYR7JW - 5 2026-04-16
RYR65YP Ryanair 5 2026-05-29
RYR41FB - 5 2026-07-06
RYR90GK Ryanair 4 2026-05-29
RYR8PL - 4 2026-07-04
RYR82PQ Ryanair 4 2026-04-15
RYR80AY Ryanair 4 2026-05-15
RYR6GD Ryanair 4 2026-05-18
RYR62XF Ryanair 4 2026-05-29
RYR5ME Ryanair 4 2026-05-15
RYR53QC - 4 2026-07-04
RYR4AM - 4 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 RYR74XG - Jul 15, 05:15 UTCJul 15, 06:15 UTC1h 0m
2026-07-14 RYR5261 RMI → PRG Jul 14, 20:30 UTCJul 14, 21:40 UTC1h 10m
2026-07-14 RYR147F PRG → RMI Jul 14, 18:40 UTCJul 14, 19:45 UTC1h 5m
2026-07-14 RYR6HK DUB → PRG Jul 14, 16:00 UTCJul 14, 18:05 UTC2h 5m
2026-07-14 RYR7327 PRG → DUB Jul 14, 12:55 UTCJul 14, 14:55 UTC2h 0m
2026-07-14 RYR43AX - Jul 14, 10:40 UTCJul 14, 12:05 UTC1h 25m
2026-07-14 RYR67SK PRG → STN Jul 14, 08:05 UTCJul 14, 09:40 UTC1h 35m
2026-07-14 RYR5YR - Jul 14, 06:25 UTCJul 14, 07:15 UTC50m
2026-07-14 RYR6RJ PRG → TSF Jul 14, 04:25 UTCJul 14, 05:25 UTC1h 0m
2026-07-13 RYR5BK BCN → PRG Jul 13, 16:45 UTCJul 13, 18:30 UTC1h 45m
2026-07-13 RYR94CD PRG → BCN Jul 13, 13:20 UTCJul 13, 15:30 UTC2h 10m
2026-07-13 RYR9EP - Jul 13, 11:00 UTCJul 13, 12:35 UTC1h 35m
2026-07-13 RYR74XG - Jul 13, 08:30 UTCJul 13, 10:00 UTC1h 30m
2026-07-13 RYR80WD - Jul 13, 06:10 UTCJul 13, 07:10 UTC1h 0m
2026-07-13 RYR115D PRG → BGY Jul 13, 04:15 UTCJul 13, 05:15 UTC1h 0m
2026-07-12 RYR80LC - Jul 12, 18:05 UTCJul 12, 19:10 UTC1h 5m
2026-07-12 RYR5AM PRG → BLQ Jul 12, 16:01 UTCJul 12, 17:01 UTC1h 0m
2026-07-12 RYR62AL - Jul 12, 13:10 UTCJul 12, 14:55 UTC1h 45m
2026-07-12 RYR1XU - Jul 12, 10:20 UTCJul 12, 12:10 UTC1h 50m
2026-07-12 RYR5YR - Jul 12, 08:01 UTCJul 12, 09:00 UTC1h 0m
2026-07-12 RYR6RJ - Jul 12, 06:25 UTCJul 12, 07:20 UTC55m
2026-07-11 RYR1SQ - Jul 11, 19:35 UTCJul 11, 21:40 UTC2h 5m
2026-07-11 RYR4HF - Jul 11, 16:00 UTCJul 11, 18:00 UTC2h 0m
2026-07-11 RYR9RJ - Jul 11, 12:30 UTCJul 11, 13:35 UTC1h 5m
2026-07-11 RYR900A - Jul 11, 10:35 UTCJul 11, 11:40 UTC1h 5m
2026-07-11 RYR917L EDI → PRG Jul 11, 08:01 UTCJul 11, 09:55 UTC1h 55m
2026-07-11 RYR4PP PRG → EDI Jul 11, 05:01 UTCJul 11, 06:55 UTC1h 55m
2026-07-10 RYR45BN - Jul 10, 18:40 UTCJul 10, 19:35 UTC55m
2026-07-10 RYR9KY PRG → KSC Jul 10, 17:10 UTCJul 10, 18:00 UTC50m
2026-07-10 RYR8LV DUB → PRG Jul 10, 14:15 UTCJul 10, 16:10 UTC1h 55m
2026-07-10 RYR38WP PRG → DUB Jul 10, 11:05 UTCJul 10, 13:20 UTC2h 15m
2026-07-10 RYR3TR RHO → PRG Jul 10, 07:25 UTCJul 10, 10:15 UTC2h 50m
2026-07-10 RYR82LZ PRG → RHO Jul 10, 04:05 UTCJul 10, 06:30 UTC2h 25m
2026-07-09 RYR5YR - Jul 9, 19:55 UTCJul 9, 20:50 UTC55m
2026-07-09 RYR6RJ - Jul 9, 18:20 UTCJul 9, 19:15 UTC55m
2026-07-09 RYR1SQ - Jul 9, 15:35 UTCJul 9, 17:40 UTC2h 5m
2026-07-09 RYR4HF - Jul 9, 12:15 UTCJul 9, 14:15 UTC2h 0m
2026-07-09 RYR45BN - Jul 9, 10:20 UTCJul 9, 11:20 UTC1h 0m
2026-07-09 RYR9KY - Jul 9, 08:50 UTCJul 9, 09:45 UTC55m
2026-07-09 RYR48BQ - Jul 9, 06:40 UTCJul 9, 07:55 UTC1h 15m
2026-07-09 RYR3CL - Jul 9, 04:05 UTCJul 9, 05:25 UTC1h 20m
2026-07-08 RYR5BK BCN → PRG Jul 8, 17:40 UTCJul 8, 19:45 UTC2h 5m
2026-07-08 RYR94CD - Jul 8, 14:45 UTCJul 8, 16:40 UTC1h 55m
2026-07-08 RYR35VW - Jul 8, 07:55 UTCJul 8, 13:35 UTC5h 40m
2026-07-08 RYR5GK - Jul 8, 04:35 UTCJul 8, 07:00 UTC2h 25m
2026-07-07 RYR7YG - Jul 7, 20:10 UTCJul 7, 21:20 UTC1h 10m
2026-07-07 RYR6LW - Jul 7, 17:40 UTCJul 7, 19:05 UTC1h 25m
2026-07-07 RYR76JH - Jul 7, 15:55 UTCJul 7, 16:30 UTC35m
2026-07-07 RYR79SY - Jul 7, 13:50 UTCJul 7, 14:25 UTC35m
2026-07-07 RYR79WD - Jul 7, 11:20 UTCJul 7, 12:25 UTC1h 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-RSQ page for operator, model, and routing details .

Mode-S 48C239 frequently asked

What is Mode-S code 48C239?
48C239 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-RSQ.
Where is Mode-S 48C239 registered?
Mode-S code 48C239 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C239 broadcasting right now?
Yes. Mode-S 48C239 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C239, octal 22141071, decimal 4,768,313.
What flights does 48C239 operate?
Mode-S 48C239 has broadcast 20 distinct callsigns, including RYR9YU, RYR6MU, RYR7SY, RYR64HB, RYR3YB.