sensors Mode-S transponder

48C2A2

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-RZC · BOEING 737 MAX 8

Hex
48C2A2
Octal
22141242
Decimal
4,768,418
Country
PL
Tail
SP-RZC
Type
B38M
Broadcasting now · callsign RYR4DL · 32,000 ft
Flights observed
549
Distinct callsigns
20
Country
PL
Last broadcast
2h ago

Current position

48C2A2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 48C2A2 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
RYR58JX Ryanair 8 2026-05-21
RYR72RX - 7 2026-07-14
RYR58ER - 7 2026-07-10
RYR48VM Ryanair 7 2026-05-21
RYR8FJ - 6 2026-07-10
RYR85XP - 6 2026-06-20
RYR594F - 6 2026-06-29
RYR4VA - 6 2026-07-03
RYR2CR - 6 2026-06-24
RYR23SN - 6 2026-07-03
RYR120T - 6 2026-06-29
RYR8TC - 5 2026-07-13
RYR55JC - 5 2026-07-13
RYR51VB - 5 2026-06-29
RYR4FR - 5 2026-07-06
RYR41QY - 5 2026-07-06
RYR41CA - 5 2026-05-30
RYR3YY - 5 2026-06-29
RYR95VG - 4 2026-07-11
RYR80NQ - 4 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 RYR8EB - Jul 15, 04:30 UTCJul 15, 05:50 UTC1h 20m
2026-07-14 RYR2QH - Jul 14, 19:35 UTCJul 14, 22:05 UTC2h 30m
2026-07-14 RYR72RX BUD → ALC Jul 14, 14:50 UTCJul 14, 17:40 UTC2h 50m
2026-07-14 RYR9FC BCN → BUD Jul 14, 11:25 UTCJul 14, 13:25 UTC2h 0m
2026-07-14 RYR21HR BUD → BCN Jul 14, 07:30 UTCJul 14, 09:50 UTC2h 20m
2026-07-14 RYR4033 PRG → BUD Jul 14, 05:35 UTCJul 14, 06:25 UTC50m
2026-07-14 RYR2LP BUD → PRG Jul 14, 03:55 UTCJul 14, 04:45 UTC50m
2026-07-13 RYR21MT - Jul 13, 20:50 UTCJul 13, 21:50 UTC1h 0m
2026-07-13 RYR31ZE BUD → RMI Jul 13, 19:00 UTCJul 13, 20:10 UTC1h 10m
2026-07-13 RYR1QW JMK → BUD Jul 13, 16:30 UTCJul 13, 18:15 UTC1h 45m
2026-07-13 RYR97TB BUD → JMK Jul 13, 13:45 UTCJul 13, 15:20 UTC1h 35m
2026-07-13 RYR3522 - Jul 13, 11:05 UTCJul 13, 12:20 UTC1h 15m
2026-07-13 RYR4125 - Jul 13, 08:35 UTCJul 13, 09:50 UTC1h 15m
2026-07-13 RYR55JC - Jul 13, 06:30 UTCJul 13, 07:50 UTC1h 20m
2026-07-13 RYR8TC - Jul 13, 04:35 UTCJul 13, 05:40 UTC1h 5m
2026-07-12 RYR8DG - Jul 12, 21:00 UTCJul 12, 22:15 UTC1h 15m
2026-07-12 RYR73WB - Jul 12, 18:40 UTCJul 12, 19:45 UTC1h 5m
2026-07-12 RYR4217 RHO → BUD Jul 12, 15:45 UTCJul 12, 17:45 UTC2h 0m
2026-07-12 RYR2LL BUD → RHO Jul 12, 12:50 UTCJul 12, 14:50 UTC2h 0m
2026-07-12 RYR55JC - Jul 12, 10:40 UTCJul 12, 11:45 UTC1h 5m
2026-07-12 RYR8TC - Jul 12, 08:40 UTCJul 12, 09:40 UTC1h 0m
2026-07-12 RYR4JC - Jul 12, 06:20 UTCJul 12, 07:40 UTC1h 20m
2026-07-12 RYR99GR BUD → PVK Jul 12, 04:01 UTCJul 12, 05:20 UTC1h 20m
2026-07-11 RYR4033 PRG → BUD Jul 11, 19:30 UTCJul 11, 20:20 UTC50m
2026-07-11 RYR2LP - Jul 11, 17:55 UTCJul 11, 18:40 UTC45m
2026-07-11 RYR2PB - Jul 11, 15:05 UTCJul 11, 17:10 UTC2h 5m
2026-07-11 RYR95VG - Jul 11, 10:50 UTCJul 11, 13:05 UTC2h 15m
2026-07-11 RYR42PQ - Jul 11, 08:01 UTCJul 11, 09:55 UTC1h 55m
2026-07-11 RYR1WN - Jul 11, 05:10 UTCJul 11, 07:00 UTC1h 50m
2026-07-10 RYR5211 - Jul 10, 20:40 UTCJul 10, 21:45 UTC1h 5m
2026-07-10 RYR18LV - Jul 10, 18:40 UTCJul 10, 19:50 UTC1h 10m
2026-07-10 RYR8WU - Jul 10, 16:15 UTCJul 10, 17:45 UTC1h 30m
2026-07-10 RYR619Q - Jul 10, 13:40 UTCJul 10, 15:30 UTC1h 50m
2026-07-10 RYR8FJ - Jul 10, 11:20 UTCJul 10, 12:45 UTC1h 25m
2026-07-10 RYR58ER BUD → CIA Jul 10, 09:20 UTCJul 10, 10:35 UTC1h 15m
2026-07-10 RYR1JW - Jul 10, 06:30 UTCJul 10, 08:10 UTC1h 40m
2026-07-10 RYR82HK - Jul 10, 03:55 UTCJul 10, 05:35 UTC1h 40m
2026-07-09 RYR20PT - Jul 9, 08:05 UTCJul 9, 10:45 UTC2h 40m
2026-07-09 RYR88RL - Jul 9, 04:20 UTCJul 9, 07:20 UTC3h 0m
2026-07-08 RYR5XC MAN → BUD Jul 8, 17:40 UTCJul 8, 19:50 UTC2h 10m
2026-07-08 RYR6XW BUD → MAN Jul 8, 14:20 UTCJul 8, 16:40 UTC2h 20m
2026-07-08 RYR9FC BCN → BUD Jul 8, 11:10 UTCJul 8, 13:20 UTC2h 10m
2026-07-08 RYR21HR BUD → BCN Jul 8, 07:30 UTCJul 8, 09:40 UTC2h 10m
2026-07-08 RYR6522 - Jul 8, 05:45 UTCJul 8, 06:30 UTC45m
2026-07-08 RYR99PN - Jul 8, 04:10 UTCJul 8, 04:50 UTC40m
2026-07-07 RYR18EG ARN → BUD Jul 7, 18:10 UTCJul 7, 20:00 UTC1h 50m
2026-07-07 RYR736K BUD → ARN Jul 7, 15:25 UTCJul 7, 17:15 UTC1h 50m
2026-07-07 RYR4JC - Jul 7, 13:00 UTCJul 7, 14:10 UTC1h 10m
2026-07-07 RYR99GR BUD → PVK Jul 7, 10:35 UTCJul 7, 12:00 UTC1h 25m
2026-07-07 RYR810V EMA → BUD Jul 7, 07:20 UTCJul 7, 09:20 UTC2h 0m

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

Mode-S 48C2A2 frequently asked

What is Mode-S code 48C2A2?
48C2A2 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-RZC.
Where is Mode-S 48C2A2 registered?
Mode-S code 48C2A2 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C2A2 broadcasting right now?
Yes. Mode-S 48C2A2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C2A2, octal 22141242, decimal 4,768,418.
What flights does 48C2A2 operate?
Mode-S 48C2A2 has broadcast 20 distinct callsigns, including RYR58JX, RYR72RX, RYR58ER, RYR48VM, RYR8FJ.