Apparatus

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sensors Mode-S transponder

48C12D

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-RKN · BOEING 737-800

Hex
48C12D
Octal
22140455
Decimal
4,768,045
Country
PL
Tail
SP-RKN
Type
B738
No current signal · last broadcast 5h ago
Flights observed
575
Distinct callsigns
20
Country
PL
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 48C12D.

Country allocation

The ICAO 24-bit address 48C12D 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
RYR1502 Ryanair 19 2026-06-04
RYR1501 Ryanair 18 2026-06-04
RYR159P Ryanair 13 2026-06-01
RYR13PB Ryanair 13 2026-06-01
RYR786D Ryanair 10 2026-06-05
RYR7654 Ryanair 9 2026-06-01
RYR6JD Ryanair 9 2026-06-02
RYR42UP Ryanair 9 2026-06-02
RYR4978 Ryanair 8 2026-06-03
RYR219K Ryanair 8 2026-06-03
RYR4RQ - 7 2026-06-04
RYR15BH Ryanair 7 2026-06-04
RYR8365 Ryanair 6 2026-06-01
RYR4FN - 6 2026-07-08
RYR44PV - 6 2026-07-08
RYR9NH Ryanair 5 2026-05-26
RYR973Z Ryanair 5 2026-06-04
RYR8MA Ryanair 5 2026-05-29
RYR8FJ - 5 2026-07-12
RYR8366 Ryanair 5 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 RYR14EX - Jul 14, 18:45 UTCJul 14, 20:50 UTC2h 5m
2026-07-14 RYR3607 - Jul 14, 14:50 UTCJul 14, 17:10 UTC2h 20m
2026-07-14 RYR16AX - Jul 14, 12:50 UTCJul 14, 13:45 UTC55m
2026-07-14 RYR594F BER → BUD Jul 14, 10:40 UTCJul 14, 11:40 UTC1h 0m
2026-07-14 RYR120T BUD → BER Jul 14, 05:25 UTCJul 14, 07:05 UTC1h 40m
2026-07-13 RYR6YM - Jul 13, 21:25 UTCJul 13, 22:30 UTC1h 5m
2026-07-13 RYR41CA - Jul 13, 19:05 UTCJul 13, 20:25 UTC1h 20m
2026-07-13 RYR7SA - Jul 13, 16:15 UTCJul 13, 18:10 UTC1h 55m
2026-07-13 RYR89NR BUD → STN Jul 13, 12:30 UTCJul 13, 14:55 UTC2h 25m
2026-07-13 RYR2CR ALC → BUD Jul 13, 08:30 UTCJul 13, 11:15 UTC2h 45m
2026-07-13 RYR72RX BUD → ALC Jul 13, 04:00 UTCJul 13, 06:45 UTC2h 45m
2026-07-12 RYR36AM - Jul 12, 19:25 UTCJul 12, 20:25 UTC1h 0m
2026-07-12 RYR16AX - Jul 12, 17:35 UTCJul 12, 18:25 UTC50m
2026-07-12 RYR5YP - Jul 12, 15:40 UTCJul 12, 16:40 UTC1h 0m
2026-07-12 RYR20KW - Jul 12, 13:50 UTCJul 12, 14:50 UTC1h 0m
2026-07-12 RYR80NQ MXP → BUD Jul 12, 11:30 UTCJul 12, 12:45 UTC1h 15m
2026-07-12 RYR47GE - Jul 12, 08:50 UTCJul 12, 10:05 UTC1h 15m
2026-07-12 RYR8FJ - Jul 12, 06:45 UTCJul 12, 08:01 UTC1h 15m
2026-07-12 RYR58ER BUD → CIA Jul 12, 04:40 UTCJul 12, 05:55 UTC1h 15m
2026-07-11 RYR2NE ATH → BUD Jul 11, 18:35 UTCJul 11, 20:15 UTC1h 40m
2026-07-11 RYR1243 BUD → ATH Jul 11, 15:50 UTCJul 11, 17:25 UTC1h 35m
2026-07-11 RYR8VR - Jul 11, 13:30 UTCJul 11, 14:50 UTC1h 20m
2026-07-11 RYR9621 - Jul 11, 10:55 UTCJul 11, 12:20 UTC1h 25m
2026-07-11 RYR73XD - Jul 11, 07:35 UTCJul 11, 09:30 UTC1h 55m
2026-07-11 RYR2PU BUD → STN Jul 11, 04:05 UTCJul 11, 06:20 UTC2h 15m
2026-07-10 RYR51VB BCN → BUD Jul 10, 18:00 UTCJul 10, 20:00 UTC2h 0m
2026-07-10 RYR3YY BUD → BCN Jul 10, 14:30 UTCJul 10, 16:50 UTC2h 20m
2026-07-10 RYR55JC - Jul 10, 11:45 UTCJul 10, 12:50 UTC1h 5m
2026-07-10 RYR8TC - Jul 10, 09:40 UTCJul 10, 10:45 UTC1h 5m
2026-07-10 RYR2NE - Jul 10, 06:50 UTCJul 10, 08:35 UTC1h 45m
2026-07-10 RYR1243 BUD → ATH Jul 10, 04:35 UTCJul 10, 06:05 UTC1h 30m
2026-07-09 RYR1GQ - Jul 9, 19:45 UTCJul 9, 20:20 UTC35m
2026-07-09 RYR9752 BUD → KRK Jul 9, 18:15 UTCJul 9, 18:55 UTC40m
2026-07-09 RYR8VR - Jul 9, 16:05 UTCJul 9, 17:35 UTC1h 30m
2026-07-09 RYR9621 - Jul 9, 13:40 UTCJul 9, 15:05 UTC1h 25m
2026-07-09 RYR5YP - Jul 9, 11:20 UTCJul 9, 12:25 UTC1h 5m
2026-07-09 RYR1969 - Jul 9, 09:05 UTCJul 9, 10:25 UTC1h 20m
2026-07-09 RYR2UV - Jul 9, 06:20 UTCJul 9, 08:15 UTC1h 55m
2026-07-09 RYR7KN - Jul 9, 04:30 UTCJul 9, 05:15 UTC45m
2026-07-08 RYR4155 - Jul 8, 18:55 UTCJul 8, 21:00 UTC2h 5m
2026-07-08 RYR73ZL - Jul 8, 16:05 UTCJul 8, 18:00 UTC1h 55m
2026-07-08 RYR9095 - Jul 8, 13:05 UTCJul 8, 14:50 UTC1h 45m
2026-07-08 RYR43DL - Jul 8, 10:25 UTCJul 8, 12:00 UTC1h 35m
2026-07-08 RYR4FN - Jul 8, 07:45 UTCJul 8, 09:25 UTC1h 40m
2026-07-08 RYR44PV - Jul 8, 05:15 UTCJul 8, 06:50 UTC1h 35m
2026-07-07 RYR712F - Jul 7, 19:50 UTCJul 7, 21:40 UTC1h 50m
2026-07-07 RYR14UU - Jul 7, 17:15 UTCJul 7, 19:00 UTC1h 45m
2026-07-07 RYR72JG - Jul 7, 15:00 UTCJul 7, 15:45 UTC45m
2026-07-07 RYR4FN - Jul 7, 10:15 UTCJul 7, 11:55 UTC1h 40m
2026-07-07 RYR44PV - Jul 7, 07:40 UTCJul 7, 09:30 UTC1h 50m

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

Mode-S 48C12D frequently asked

What is Mode-S code 48C12D?
48C12D is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-RKN.
Where is Mode-S 48C12D registered?
Mode-S code 48C12D is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C12D broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C12D, octal 22140455, decimal 4,768,045.
What flights does 48C12D operate?
Mode-S 48C12D has broadcast 20 distinct callsigns, including RYR1502, RYR1501, RYR159P, RYR13PB, RYR786D.