Apparatus

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sensors Mode-S transponder

4CA960

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-RZA · BOEING 737 MAX 8

Hex
4CA960
Octal
23124540
Decimal
5,024,096
Country
IE
Tail
EI-RZA
Type
B38M
No current signal · last broadcast 56m ago
Flights observed
87
Distinct callsigns
20
Country
IE
Last broadcast
56m ago

Last known position

Most recent position reported by Mode-S 4CA960.

Country allocation

The ICAO 24-bit address 4CA960 falls within the block assigned to Ireland (IE) by ICAO Annex 10, Volume III. Every aircraft registered in Ireland 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
NOS1590 Neos 7 2026-04-20
NOS6732 Neos 6 2026-05-16
NOS7547 Neos 4 2026-05-17
NOS5622 Neos 4 2026-04-17
NOS3812 Neos 4 2026-05-20
NOS1468 Neos 4 2026-05-18
NOS1424 Neos 4 2026-05-25
NOS97UR Neos 3 2026-05-17
NOS4536 - 3 2026-04-23
NOS2421 Neos 3 2026-05-19
NOS7523 Neos 2 2026-05-03
NOS6525 Neos 2 2026-05-23
NOS5820 Neos 2 2026-05-22
NOS564 Neos 2 2026-05-29
NOS5421 Neos 2 2026-05-29
NOS5420 Neos 2 2026-05-29
NOS5347 Neos 2 2026-04-24
NOS4930 Neos 2 2026-05-07
NOS43LK Neos 2 2026-05-29
NOS2420 Neos 2 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 NOS5421 DSS → MXP May 29, 22:45 UTCMay 30, 03:55 UTC5h 10m
2026-05-29 NOS5420 MXP → DSS May 29, 15:35 UTCMay 29, 20:55 UTC5h 20m
2026-05-29 NOS43LK HAM → MXP May 29, 11:25 UTCMay 29, 12:45 UTC1h 20m
2026-05-29 NOS564 MXP → HAM May 29, 08:50 UTCMay 29, 10:15 UTC1h 25m
2026-05-28 TCV7006 - May 28, 10:50 UTCMay 28, 14:35 UTC3h 45m
2026-05-27 TCV663 RAI → REC May 27, 22:25 UTCMay 27, 22:30 UTC5m
2026-05-27 TCV7005 - May 27, 13:25 UTCMay 27, 17:05 UTC3h 40m
2026-05-25 NOS1424 MXP → RMF May 25, 13:15 UTCMay 25, 16:30 UTC3h 15m
2026-05-25 NOS1424 MXP → RMF May 25, 05:50 UTCMay 25, 11:30 UTC5h 40m
2026-05-24 NOS90UQ MXP → RMF May 24, 18:15 UTCMay 25, 03:30 UTC9h 15m
2026-05-23 NOS6525 SSH → MXP May 23, 07:50 UTCMay 23, 17:05 UTC9h 15m
2026-05-22 NOS5421 DSS → MXP May 22, 22:40 UTCMay 23, 03:45 UTC5h 4m
2026-05-22 NOS5420 MXP → DSS May 22, 15:25 UTCMay 22, 20:45 UTC5h 20m
2026-05-22 NOS5820 JMK → KGS May 22, 09:35 UTCMay 22, 12:05 UTC2h 30m
2026-05-22 NOS5820 JMK → KGS May 22, 07:50 UTCMay 22, 08:20 UTC30m
2026-05-22 NOS47FN MXP → JMK May 22, 04:30 UTCMay 22, 06:45 UTC2h 15m
2026-05-20 NOS3812 SID → MXP May 20, 07:15 UTCMay 20, 20:30 UTC13h 15m
2026-05-19 NOS2421 DSS → MXP May 19, 23:25 UTCMay 20, 01:20 UTC1h 55m
2026-05-19 NOS2421 DSS → MXP May 19, 20:05 UTCMay 19, 20:30 UTC25m
2026-05-19 NOS2420 MXP → DSS May 19, 13:05 UTCMay 19, 18:25 UTC5h 20m
2026-05-18 NOS1468 MXP → ACE May 18, 06:50 UTCMay 18, 16:50 UTC10h 0m
2026-05-17 NOS7547 SSH → MXP May 17, 18:05 UTCMay 18, 02:00 UTC7h 55m
2026-05-17 NOS7321 SSH → NAP May 17, 16:01 UTCMay 17, 16:25 UTC25m
2026-05-17 NOS97UR MXP → SSH May 17, 06:15 UTCMay 17, 14:35 UTC8h 20m
2026-05-16 NOS6732 MXP → HER May 16, 16:45 UTCMay 16, 19:50 UTC3h 5m
2026-05-16 NOS6732 MXP → HER May 16, 15:05 UTCMay 16, 15:25 UTC20m
2026-05-16 NOS6732 MXP → HER May 16, 11:21 UTCMay 16, 13:21 UTC2h 0m
2026-05-15 NOS43LK HAM → MXP May 15, 12:10 UTCMay 15, 13:30 UTC1h 20m
2026-05-15 NOS564 MXP → HAM May 15, 08:55 UTCMay 15, 10:15 UTC1h 20m
2026-05-13 NOS3812 SID → MXP May 13, 07:15 UTCMay 13, 20:20 UTC13h 5m
2026-05-12 NOS2421 DSS → MXP May 12, 20:45 UTCMay 13, 01:35 UTC4h 50m
2026-05-12 NOS2420 MXP → DSS May 12, 13:10 UTCMay 12, 19:10 UTC6h 0m
2026-05-11 NOS1424 MXP → RMF May 11, 13:05 UTCMay 11, 16:40 UTC3h 35m
2026-05-11 NOS1424 MXP → RMF May 11, 05:55 UTCMay 11, 08:35 UTC2h 40m
2026-05-10 NOS8251 - May 10, 20:40 UTCMay 10, 22:15 UTC1h 35m
2026-05-10 NOS9250 SOF → SUF May 10, 18:29 UTCMay 10, 19:35 UTC1h 5m
2026-05-10 NOS8250 - May 10, 15:05 UTCMay 10, 16:30 UTC1h 25m
2026-05-10 NOS7573 MAH → MXP May 10, 10:55 UTCMay 10, 12:00 UTC1h 5m
2026-05-10 NOS7572 MXP → MAH May 10, 08:15 UTCMay 10, 09:20 UTC1h 5m
2026-05-09 NOS6733 HER → MXP May 9, 16:50 UTCMay 9, 19:30 UTC2h 40m
2026-05-09 NOS6732 MXP → HER May 9, 15:10 UTCMay 9, 15:30 UTC20m
2026-05-09 NOS6732 MXP → HER May 9, 11:30 UTCMay 9, 13:35 UTC2h 5m
2026-05-09 NOS6732 MXP → HER May 9, 09:50 UTCMay 9, 10:10 UTC20m
2026-05-07 NOS4930 CAI → MXP May 7, 13:15 UTCMay 7, 17:00 UTC3h 45m
2026-05-07 NOS4930 CAI → MXP May 7, 06:35 UTCMay 7, 08:45 UTC2h 10m
2026-05-04 NOS1468 MXP → ACE May 4, 06:35 UTCMay 4, 16:25 UTC9h 50m
2026-05-03 NOS7547 SSH → MXP May 3, 18:09 UTCMay 4, 02:10 UTC8h 0m
2026-05-03 NOS7523 SSH → BRI May 3, 16:30 UTCMay 3, 16:55 UTC25m
2026-05-03 NOS97UR MXP → SSH May 3, 06:30 UTCMay 3, 15:05 UTC8h 35m
2026-05-02 NOS57XA MXP → MXP May 2, 07:50 UTCMay 2, 17:05 UTC9h 15m

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 EI-RZA page for operator, model, and routing details .

Mode-S 4CA960 frequently asked

What is Mode-S code 4CA960?
4CA960 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-RZA.
Where is Mode-S 4CA960 registered?
Mode-S code 4CA960 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA960 broadcasting right now?
No active broadcast right now. Last signal was 56m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA960, octal 23124540, decimal 5,024,096.
What flights does 4CA960 operate?
Mode-S 4CA960 has broadcast 20 distinct callsigns, including NOS1590, NOS6732, NOS7547, NOS5622, NOS3812.