Apparatus

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sensors Mode-S transponder

48C2A8

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-RZI · BOEING 737 MAX 8

Hex
48C2A8
Octal
22141250
Decimal
4,768,424
Country
PL
Tail
SP-RZI
Type
B38M
Broadcasting now · callsign RYR21HR · 35,600 ft
Flights observed
573
Distinct callsigns
20
Country
PL
Last broadcast
1h ago

Current position

48C2A8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 48C2A8 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
RYR8V Ryanair 8 2026-05-28
RYR6216 Ryanair 8 2026-05-28
RYR32UZ Ryanair 7 2026-05-25
RYR2KY Ryanair 7 2026-05-25
RYR21HR - 7 2026-07-15
RYR9GA Ryanair 6 2026-05-29
RYR9FC - 6 2026-07-07
RYR6ZK Ryanair 6 2026-05-29
RYR76ZJ - 5 2026-07-08
RYR6XW - 5 2026-07-05
RYR5XC - 5 2026-07-05
RYR3BU - 5 2026-07-08
RYR9ZE Ryanair 4 2026-05-20
RYR9XT Ryanair 4 2026-05-23
RYR9WQ - 4 2026-07-09
RYR9NR - 4 2026-05-27
RYR7KW Ryanair 4 2026-05-20
RYR6BA Ryanair 4 2026-05-31
RYR69UA - 4 2026-05-20
RYR5KN Ryanair 4 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 RYR21HR - Jul 15, 07:45 UTCJul 15, 08:00 UTC15m
2026-07-15 RYR6522 - Jul 15, 06:05 UTCJul 15, 06:45 UTC40m
2026-07-15 RYR99PN - Jul 15, 04:25 UTCJul 15, 05:05 UTC40m
2026-07-14 RYR73XD - Jul 14, 20:40 UTCJul 14, 22:40 UTC2h 0m
2026-07-14 RYR7BT - Jul 14, 17:15 UTCJul 14, 19:00 UTC1h 45m
2026-07-14 RYR313Q - Jul 14, 14:35 UTCJul 14, 16:30 UTC1h 55m
2026-07-14 RYR8309 WRO → NCL Jul 14, 11:45 UTCJul 14, 13:45 UTC2h 0m
2026-07-14 RYR33GC ALC → WRO Jul 14, 08:15 UTCJul 14, 10:50 UTC2h 35m
2026-07-14 RYR55BB WRO → ALC Jul 14, 04:10 UTCJul 14, 07:05 UTC2h 55m
2026-07-13 RYR9BU - Jul 13, 17:15 UTCJul 13, 19:20 UTC2h 5m
2026-07-13 RYR13BP - Jul 13, 14:25 UTCJul 13, 16:15 UTC1h 50m
2026-07-13 RYR5LJ - Jul 13, 11:55 UTCJul 13, 13:35 UTC1h 40m
2026-07-13 RYR44MW WRO → CIA Jul 13, 09:15 UTCJul 13, 10:45 UTC1h 30m
2026-07-13 RYR3YV - Jul 13, 06:25 UTCJul 13, 08:05 UTC1h 40m
2026-07-13 RYR391 - Jul 13, 04:05 UTCJul 13, 05:35 UTC1h 30m
2026-07-12 RYR9FG LIS → WRO Jul 12, 19:55 UTCJul 12, 23:10 UTC3h 15m
2026-07-12 RYR21UN WRO → LIS Jul 12, 15:20 UTCJul 12, 18:50 UTC3h 30m
2026-07-12 RYR19PH - Jul 12, 13:05 UTCJul 12, 14:15 UTC1h 10m
2026-07-12 RYR653Z - Jul 12, 11:01 UTCJul 12, 12:01 UTC1h 0m
2026-07-12 RYR7GN ATH → WRO Jul 12, 07:55 UTCJul 12, 10:05 UTC2h 10m
2026-07-12 RYR691H WRO → ATH Jul 12, 04:40 UTCJul 12, 06:50 UTC2h 10m
2026-07-11 RYR2BR - Jul 11, 20:00 UTCJul 11, 21:25 UTC1h 25m
2026-07-11 RYR4841 - Jul 11, 17:30 UTCJul 11, 18:45 UTC1h 15m
2026-07-11 RYR7C - Jul 11, 14:10 UTCJul 11, 16:10 UTC2h 0m
2026-07-11 RYR6KF - Jul 11, 11:05 UTCJul 11, 12:50 UTC1h 45m
2026-07-11 RYR14HU - Jul 11, 08:40 UTCJul 11, 10:10 UTC1h 30m
2026-07-11 RYR608Y - Jul 11, 06:05 UTCJul 11, 07:40 UTC1h 35m
2026-07-10 RYR9UD - Jul 10, 17:10 UTCJul 10, 19:30 UTC2h 20m
2026-07-10 RYR1BE WRO → MLA Jul 10, 14:10 UTCJul 10, 16:25 UTC2h 15m
2026-07-10 RYR275K - Jul 10, 11:40 UTCJul 10, 13:10 UTC1h 30m
2026-07-10 RYR889X WRO → STN Jul 10, 08:45 UTCJul 10, 10:35 UTC1h 50m
2026-07-10 RYR13YT DBV → WRO Jul 10, 06:20 UTCJul 10, 07:55 UTC1h 35m
2026-07-10 RYR221H WRO → DBV Jul 10, 04:10 UTCJul 10, 05:30 UTC1h 20m
2026-07-09 RYR7ZL DUB → WRO Jul 9, 19:40 UTCJul 9, 21:45 UTC2h 5m
2026-07-09 RYR85XP - Jul 9, 16:05 UTCJul 9, 18:40 UTC2h 35m
2026-07-09 RYR6A - Jul 9, 13:20 UTCJul 9, 15:05 UTC1h 45m
2026-07-09 RYR36SL - Jul 9, 10:30 UTCJul 9, 12:25 UTC1h 55m
2026-07-09 RYR9WQ LPL → KRK Jul 9, 07:20 UTCJul 9, 09:20 UTC2h 0m
2026-07-09 RYR65JG KRK → LPL Jul 9, 03:50 UTCJul 9, 06:20 UTC2h 30m
2026-07-08 RYR39FQ - Jul 8, 22:30 UTCJul 8, 23:35 UTC1h 5m
2026-07-08 RYR7273 - Jul 8, 20:35 UTCJul 8, 21:25 UTC50m
2026-07-08 RYR3BU LBA → KRK Jul 8, 17:35 UTCJul 8, 19:35 UTC2h 0m
2026-07-08 RYR76ZJ KRK → LBA Jul 8, 13:05 UTCJul 8, 15:15 UTC2h 10m
2026-07-08 RYR41KN GLA → KRK Jul 8, 09:30 UTCJul 8, 11:50 UTC2h 20m
2026-07-08 RYR86NA - Jul 8, 06:00 UTCJul 8, 08:40 UTC2h 40m
2026-07-08 RYS70RR - Jul 8, 02:10 UTCJul 8, 04:50 UTC2h 40m
2026-07-07 RYS3129 - Jul 7, 22:50 UTCJul 8, 00:50 UTC2h 0m
2026-07-07 RYR2QH ALC → KRK Jul 7, 19:00 UTCJul 7, 21:50 UTC2h 50m
2026-07-07 RYR72RX BUD → ALC Jul 7, 15:05 UTCJul 7, 17:50 UTC2h 45m
2026-07-07 RYR9FC BCN → BUD Jul 7, 11:15 UTCJul 7, 13:20 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-RZI page for operator, model, and routing details .

Mode-S 48C2A8 frequently asked

What is Mode-S code 48C2A8?
48C2A8 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-RZI.
Where is Mode-S 48C2A8 registered?
Mode-S code 48C2A8 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C2A8 broadcasting right now?
Yes. Mode-S 48C2A8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C2A8, octal 22141250, decimal 4,768,424.
What flights does 48C2A8 operate?
Mode-S 48C2A8 has broadcast 20 distinct callsigns, including RYR8V, RYR6216, RYR32UZ, RYR2KY, RYR21HR.