sensors Mode-S transponder

4CA8DF

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-IMF · AIRBUS A-319

Hex
4CA8DF
Octal
23124337
Decimal
5,023,967
Country
IE
Tail
EI-IMF
Type
A319
Transponder active on ground
Flights observed
281
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4CA8DF.

Country allocation

The ICAO 24-bit address 4CA8DF 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
ITY2050 ITA Airways 11 2026-05-28
ITY356 ITA Airways 9 2026-05-28
ITY2059 ITA Airways 9 2026-05-12
ITY3OL ITA Airways 8 2026-05-29
ITY1684 ITA Airways 7 2026-05-23
ITY1679 ITA Airways 7 2026-05-23
ITY1198 ITA Airways 7 2026-05-19
ITY1196 ITA Airways 7 2026-05-15
ITY1195 ITA Airways 7 2026-05-15
ITY1299 ITA Airways 6 2026-05-13
ITY1197 ITA Airways 6 2026-05-19
ITY2010 ITA Airways 5 2026-05-26
ITY1678 ITA Airways 5 2026-05-28
ITY1675 ITA Airways 5 2026-05-28
ITY1649 ITA Airways 5 2026-05-26
ITY1648 ITA Airways 5 2026-05-26
ITY1157 ITA Airways 5 2026-05-28
ITY1156 ITA Airways 5 2026-05-28
ITY4LI ITA Airways 4 2026-04-27
ITY2109 ITA Airways 4 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ITY156 FCO → BRU May 30, 06:45 UTCMay 30, 07:45 UTC1h 0m
2026-05-30 ITY1460 VCE → FCO May 30, 04:20 UTCMay 30, 05:05 UTC45m
2026-05-29 ITY1473 FCO → VCE May 29, 20:30 UTCMay 29, 21:10 UTC40m
2026-05-29 ITY2109 LIN → FCO May 29, 18:10 UTCMay 29, 19:05 UTC55m
2026-05-29 ITY2092 FCO → LIN May 29, 16:15 UTCMay 29, 17:00 UTC45m
2026-05-29 ITY2071 LIN → FCO May 29, 13:45 UTCMay 29, 14:30 UTC45m
2026-05-29 ITY1772 PMO → LIN May 29, 10:20 UTCMay 29, 11:35 UTC1h 15m
2026-05-29 ITY1773 LIN → PMO May 29, 08:05 UTCMay 29, 09:20 UTC1h 15m
2026-05-29 ITY3OL ORY → LIN May 29, 05:35 UTCMay 29, 06:40 UTC1h 5m
2026-05-28 ITY356 LIN → ORY May 28, 20:20 UTCMay 28, 21:20 UTC1h 0m
2026-05-28 ITY2050 FCO → LIN May 28, 16:35 UTCMay 28, 17:30 UTC55m
2026-05-28 ITY1156 REG → FCO May 28, 14:10 UTCMay 28, 15:05 UTC55m
2026-05-28 ITY1157 FCO → REG May 28, 12:25 UTCMay 28, 13:10 UTC45m
2026-05-28 ITY1678 FLR → FCO May 28, 10:40 UTCMay 28, 11:10 UTC30m
2026-05-28 ITY1675 FCO → FLR May 28, 08:10 UTCMay 28, 08:45 UTC35m
2026-05-28 ITY1162 SUF → FCO May 28, 04:20 UTCMay 28, 05:10 UTC50m
2026-05-27 ITY1173 FCO → SUF May 27, 20:05 UTCMay 27, 20:55 UTC50m
2026-05-27 ITY109 AMS → FCO May 27, 16:30 UTCMay 27, 18:15 UTC1h 45m
2026-05-27 ITY110 FCO → AMS May 27, 13:05 UTCMay 27, 15:10 UTC2h 5m
2026-05-27 ITY585 TIA → FCO May 27, 10:25 UTCMay 27, 11:20 UTC55m
2026-05-27 ITY582 FCO → TIA May 27, 07:50 UTCMay 27, 08:50 UTC1h 0m
2026-05-27 ITY1154 REG → FCO May 27, 04:19 UTCMay 27, 05:14 UTC55m
2026-05-26 ITY1161 FCO → REG May 26, 20:20 UTCMay 26, 21:09 UTC50m
2026-05-26 ITY2109 LIN → FCO May 26, 17:30 UTCMay 26, 18:10 UTC40m
2026-05-26 ITY2092 FCO → LIN May 26, 15:24 UTCMay 26, 16:10 UTC45m
2026-05-26 ITY2071 LIN → FCO May 26, 13:10 UTCMay 26, 13:54 UTC45m
2026-05-26 ITY1648 BRI → LIN May 26, 09:55 UTCMay 26, 11:05 UTC1h 10m
2026-05-26 ITY1649 LIN → BRI May 26, 07:05 UTCMay 26, 08:19 UTC1h 15m
2026-05-26 ITY2010 FCO → LIN May 26, 05:10 UTCMay 26, 05:59 UTC50m
2026-05-25 ITY079 BCN → FCO May 25, 15:10 UTCMay 25, 16:30 UTC1h 20m
2026-05-25 ITY076 FCO → BCN May 25, 12:30 UTCMay 25, 13:45 UTC1h 15m
2026-05-25 ITY1724 CTA → FCO May 25, 10:10 UTCMay 25, 11:05 UTC55m
2026-05-25 ITY1731 FCO → CTA May 25, 08:10 UTCMay 25, 09:00 UTC50m
2026-05-25 ITY803 ALG → FCO May 25, 03:35 UTCMay 25, 05:00 UTC1h 25m
2026-05-24 ITY802 FCO → ALG May 24, 20:35 UTCMay 24, 21:45 UTC1h 10m
2026-05-24 ITY867 TUN → FCO May 24, 15:15 UTCMay 24, 18:10 UTC2h 55m
2026-05-24 ITY061 MAD → FCO May 24, 10:05 UTCMay 24, 12:15 UTC2h 10m
2026-05-24 ITY058 FCO → MAD May 24, 06:40 UTCMay 24, 08:30 UTC1h 50m
2026-05-24 ITY1676 FLR → FCO May 24, 04:50 UTCMay 24, 05:10 UTC20m
2026-05-23 ITY1681 FCO → FLR May 23, 19:55 UTCMay 23, 20:20 UTC25m
2026-05-23 ITY1684 FLR → FCO May 23, 17:15 UTCMay 23, 17:35 UTC20m
2026-05-23 ITY1679 FCO → FLR May 23, 15:35 UTCMay 23, 16:05 UTC30m
2026-05-23 ITY1156 REG → FCO May 23, 13:25 UTCMay 23, 14:25 UTC1h 0m
2026-05-23 ITY1157 FCO → REG May 23, 11:45 UTCMay 23, 12:30 UTC45m
2026-05-23 ITY863 TUN → FCO May 23, 07:35 UTCMay 23, 10:20 UTC2h 45m
2026-05-23 ITY075 BCN → FCO May 23, 04:30 UTCMay 23, 05:45 UTC1h 15m
2026-05-22 ITY078 FCO → BCN May 22, 20:35 UTCMay 22, 21:55 UTC1h 20m
2026-05-22 ITY1684 FLR → FCO May 22, 17:45 UTCMay 22, 18:25 UTC40m
2026-05-22 ITY1679 FCO → FLR May 22, 15:40 UTCMay 22, 16:10 UTC30m
2026-05-22 ITY1156 REG → FCO May 22, 13:40 UTCMay 22, 14:35 UTC55m

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

Mode-S 4CA8DF frequently asked

What is Mode-S code 4CA8DF?
4CA8DF is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-IMF.
Where is Mode-S 4CA8DF registered?
Mode-S code 4CA8DF is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA8DF broadcasting right now?
Mode-S 4CA8DF is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA8DF, octal 23124337, decimal 5,023,967.
What flights does 4CA8DF operate?
Mode-S 4CA8DF has broadcast 20 distinct callsigns, including ITY2050, ITY356, ITY2059, ITY3OL, ITY1684.