sensors Mode-S transponder

48C2A4

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-RZE · BOEING 737 MAX 8

Hex
48C2A4
Octal
22141244
Decimal
4,768,420
Country
PL
Tail
SP-RZE
Type
B38M
Broadcasting now · callsign RYR12EJ · 37,000 ft
Flights observed
302
Distinct callsigns
20
Country
PL
Last broadcast
38m ago

Current position

48C2A4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 48C2A4 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
RYR65JG - 8 2026-05-27
RYR9WQ Ryanair 7 2026-05-27
RYR9GA Ryanair 4 2026-05-20
RYR6ZK Ryanair 4 2026-05-20
RYR57ND Ryanair 4 2026-05-30
RYR12EJ - 4 2026-05-30
RYR9UQ Ryanair 3 2026-05-25
RYR9LF Ryanair 3 2026-05-25
RYR955V Ryanair 3 2026-04-15
RYR8PF Ryanair 3 2026-05-29
RYR8JY Ryanair 3 2026-04-14
RYR89NR - 3 2026-04-24
RYR85XP Ryanair 3 2026-05-26
RYR7KW Ryanair 3 2026-05-21
RYR7GH Ryanair 3 2026-05-25
RYR6BU Ryanair 3 2026-04-26
RYR69UA - 3 2026-05-21
RYR67ZT Ryanair 3 2026-05-29
RYR63XE - 3 2026-05-18
RYR38XF Ryanair 3 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 RYR12EJ - May 30, 08:15 UTCMay 30, 09:00 UTC45m
2026-05-30 RYR57ND BGY → BER May 30, 05:05 UTCMay 30, 07:10 UTC2h 5m
2026-05-29 RYR67ZT SOF → BCN May 29, 19:35 UTCMay 29, 21:20 UTC1h 45m
2026-05-29 RYR2TL CGN → LPA May 29, 16:15 UTCMay 29, 18:15 UTC2h 0m
2026-05-29 RYR8PF DUB → ALC May 29, 13:15 UTCMay 29, 15:10 UTC1h 55m
2026-05-29 RYR1JE STN → IBZ May 29, 10:20 UTCMay 29, 12:00 UTC1h 40m
2026-05-29 RYR7FV AMM → VIE May 29, 06:50 UTCMay 29, 08:50 UTC2h 0m
2026-05-29 RYR34BB WMI → CIA May 29, 04:15 UTCMay 29, 06:00 UTC1h 45m
2026-05-28 RYR8833 - May 28, 19:40 UTCMay 28, 22:55 UTC3h 15m
2026-05-28 RYR8832 RAK → ACE May 28, 15:50 UTCMay 28, 18:35 UTC2h 45m
2026-05-28 RYR824W BVA → WMI May 28, 13:10 UTCMay 28, 15:00 UTC1h 50m
2026-05-28 RYR36SL KRK → BVA May 28, 10:20 UTCMay 28, 12:05 UTC1h 45m
2026-05-28 RYR9BR VLC → PSA May 28, 07:40 UTCMay 28, 09:00 UTC1h 20m
2026-05-28 RYR8PE RAK → TLS May 28, 05:05 UTCMay 28, 06:50 UTC1h 45m
2026-05-27 RYR8201 BRI → AGP May 27, 19:55 UTCMay 27, 21:55 UTC2h 0m
2026-05-27 RYR2TD ZAD → FMO May 27, 16:50 UTCMay 27, 19:15 UTC2h 25m
2026-05-27 RYR6ML AMM → KRK May 27, 13:45 UTCMay 27, 15:20 UTC1h 35m
2026-05-27 RYR36XF REU → STN May 27, 11:25 UTCMay 27, 12:50 UTC1h 25m
2026-05-27 RYR9WQ BER → BCN May 27, 08:10 UTCMay 27, 10:20 UTC2h 10m
2026-05-27 RYR65JG - May 27, 04:49 UTCMay 27, 07:15 UTC2h 26m
2026-05-26 RYR7NW LTN → LUZ May 26, 20:05 UTCMay 26, 22:20 UTC2h 15m
2026-05-26 RYR85XP KRK → DUB May 26, 16:40 UTCMay 26, 19:15 UTC2h 35m
2026-05-26 RYR9AH IAS → DUB May 26, 13:34 UTCMay 26, 15:35 UTC2h 0m
2026-05-26 RYR3MY KRK → BHX May 26, 09:29 UTCMay 26, 11:44 UTC2h 15m
2026-05-26 RYR39FQ - May 26, 07:05 UTCMay 26, 08:19 UTC1h 15m
2026-05-26 RYR7273 KRK → ZAD May 26, 05:10 UTCMay 26, 06:10 UTC1h 0m
2026-05-25 RYR41KN GLA → KRK May 25, 18:30 UTCMay 25, 20:45 UTC2h 15m
2026-05-25 RYR86NA ARN → BLQ May 25, 15:05 UTCMay 25, 17:30 UTC2h 25m
2026-05-25 RYR9LF PSA → PMO May 25, 13:10 UTCMay 25, 13:55 UTC45m
2026-05-25 RYR7GH VCE → MAD May 25, 11:30 UTCMay 25, 12:15 UTC45m
2026-05-25 RYR9UQ WMI → SNN May 25, 07:30 UTCMay 25, 09:55 UTC2h 25m
2026-05-25 RYR4BM TNG → MRS May 25, 04:10 UTCMay 25, 06:35 UTC2h 25m
2026-05-24 RYR8LF BHX → OPO May 24, 19:35 UTCMay 24, 21:45 UTC2h 10m
2026-05-24 RYR9VE KRK → DUB May 24, 15:55 UTCMay 24, 18:15 UTC2h 20m
2026-05-24 RYR9752 BLL → VIE May 24, 14:15 UTCMay 24, 14:50 UTC35m
2026-05-24 RYR1GQ VNO → LBA May 24, 12:35 UTCMay 24, 13:10 UTC35m
2026-05-24 RYR8201 BRI → AGP May 24, 09:15 UTCMay 24, 11:20 UTC2h 5m
2026-05-24 RYR2TD ZAD → FMO May 24, 05:05 UTCMay 24, 07:30 UTC2h 25m
2026-05-23 RYR80NW LTN → KRK May 23, 18:35 UTCMay 23, 20:30 UTC1h 55m
2026-05-23 RYR44SB KRK → LTN May 23, 15:45 UTCMay 23, 17:50 UTC2h 5m
2026-05-23 RYR4PJ VIT → BGY May 23, 12:45 UTCMay 23, 14:45 UTC2h 0m
2026-05-23 RYR42KK STN → ALC May 23, 09:50 UTCMay 23, 11:50 UTC2h 0m
2026-05-23 RYR3TT MXP → AGP May 23, 07:15 UTCMay 23, 08:45 UTC1h 30m
2026-05-23 RYR47MW AGP → STN May 23, 05:10 UTCMay 23, 06:25 UTC1h 15m
2026-05-22 RYR94DX TSF → KRK May 22, 19:05 UTCMay 22, 20:20 UTC1h 15m
2026-05-22 RYR2MJ CRL → TNG May 22, 15:50 UTCMay 22, 17:00 UTC1h 10m
2026-05-22 RYR54RU BVA → KRK May 22, 13:15 UTCMay 22, 15:00 UTC1h 45m
2026-05-22 RYR8GK BCN → DUB May 22, 10:40 UTCMay 22, 12:20 UTC1h 40m
2026-05-22 RYR9WQ BER → BCN May 22, 07:20 UTCMay 22, 09:25 UTC2h 5m
2026-05-22 RYR65JG - May 22, 04:00 UTCMay 22, 06:20 UTC2h 20m

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

Mode-S 48C2A4 frequently asked

What is Mode-S code 48C2A4?
48C2A4 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-RZE.
Where is Mode-S 48C2A4 registered?
Mode-S code 48C2A4 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C2A4 broadcasting right now?
Yes. Mode-S 48C2A4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C2A4, octal 22141244, decimal 4,768,420.
What flights does 48C2A4 operate?
Mode-S 48C2A4 has broadcast 20 distinct callsigns, including RYR65JG, RYR9WQ, RYR9GA, RYR6ZK, RYR57ND.