Apparatus

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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
No current signal · last broadcast 1d ago
Flights observed
539
Distinct callsigns
20
Country
IE
Last broadcast
1d 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 - 14 2026-07-03
ITY1196 - 14 2026-07-10
ITY1195 - 14 2026-07-10
ITY2059 - 13 2026-07-03
ITY1684 - 12 2026-07-01
ITY1679 - 12 2026-07-01
ITY1198 - 12 2026-07-10
ITY356 - 11 2026-07-03
ITY1197 - 11 2026-07-10
ITY3OL - 10 2026-07-04
ITY1157 ITA Airways 10 2026-07-02
ITY1156 ITA Airways 10 2026-07-02
ITY4LI - 9 2026-07-09
ITY1764 - 9 2026-07-04
ITY1678 - 9 2026-06-19
ITY1675 - 9 2026-06-19
ITY2016 - 8 2026-06-30
ITY1765 - 8 2026-07-04
ITY1742 - 7 2026-07-10
ITY1681 - 7 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ITY1BC BDS → FCO Jul 13, 17:20 UTCJul 13, 18:15 UTC55m
2026-07-13 ITY1623 FCO → BDS Jul 13, 15:45 UTCJul 13, 16:35 UTC50m
2026-07-13 ITY1682 FLR → FCO Jul 13, 13:50 UTCJul 13, 14:15 UTC25m
2026-07-13 ITY1677 - Jul 13, 12:25 UTCJul 13, 13:00 UTC35m
2026-07-13 ITY1314 - Jul 13, 09:25 UTCJul 13, 09:55 UTC30m
2026-07-13 ITY1311 - Jul 13, 07:20 UTCJul 13, 08:01 UTC40m
2026-07-13 ITY1460 - Jul 13, 04:15 UTCJul 13, 04:55 UTC40m
2026-07-12 ITY1473 - Jul 12, 20:05 UTCJul 12, 20:45 UTC40m
2026-07-12 ITY867 - Jul 12, 17:45 UTCJul 12, 18:40 UTC55m
2026-07-12 ITY866 FCO → TUN Jul 12, 15:45 UTCJul 12, 16:30 UTC45m
2026-07-12 ITY801 - Jul 12, 10:40 UTCJul 12, 11:55 UTC1h 15m
2026-07-12 ITY800 - Jul 12, 08:10 UTCJul 12, 09:20 UTC1h 10m
2026-07-12 ITY1676 - Jul 12, 04:35 UTCJul 12, 05:01 UTC25m
2026-07-11 ITY1681 - Jul 11, 20:00 UTCJul 11, 20:30 UTC30m
2026-07-11 ITY079 BCN → FCO Jul 11, 15:30 UTCJul 11, 16:40 UTC1h 10m
2026-07-11 ITY076 FCO → BCN Jul 11, 12:30 UTCJul 11, 13:55 UTC1h 25m
2026-07-11 ITY863 - Jul 11, 09:40 UTCJul 11, 10:30 UTC50m
2026-07-11 ITY864 - Jul 11, 07:40 UTCJul 11, 08:20 UTC40m
2026-07-10 ITY2125 - Jul 10, 19:05 UTCJul 10, 19:50 UTC45m
2026-07-10 ITY1198 REG → LIN Jul 10, 16:35 UTCJul 10, 17:55 UTC1h 20m
2026-07-10 ITY1197 LIN → REG Jul 10, 14:10 UTCJul 10, 15:30 UTC1h 20m
2026-07-10 ITY1196 REG → LIN Jul 10, 10:45 UTCJul 10, 12:15 UTC1h 30m
2026-07-10 ITY1195 LIN → REG Jul 10, 07:40 UTCJul 10, 09:05 UTC1h 25m
2026-07-10 ITY1742 - Jul 10, 04:55 UTCJul 10, 06:20 UTC1h 25m
2026-07-09 ITY4LI - Jul 9, 20:00 UTCJul 9, 21:15 UTC1h 15m
2026-07-09 ITY1790 PMO → LIN Jul 9, 17:50 UTCJul 9, 18:55 UTC1h 5m
2026-07-09 ITY1793 - Jul 9, 15:25 UTCJul 9, 16:30 UTC1h 5m
2026-07-09 ITY1296 NAP → LIN Jul 9, 12:55 UTCJul 9, 13:55 UTC1h 0m
2026-07-09 ITY1287 - Jul 9, 10:45 UTCJul 9, 11:45 UTC1h 0m
2026-07-09 ITY1605 AHO → LIN Jul 9, 07:10 UTCJul 9, 08:00 UTC50m
2026-07-09 ITY1600 LIN → AHO Jul 9, 05:10 UTCJul 9, 06:00 UTC50m
2026-07-08 ITY1650 - Jul 8, 19:30 UTCJul 8, 20:35 UTC1h 5m
2026-07-08 ITY1639 LIN → BRI Jul 8, 17:30 UTCJul 8, 18:30 UTC1h 0m
2026-07-08 ITY1644 BDS → LIN Jul 8, 15:05 UTCJul 8, 16:30 UTC1h 25m
2026-07-08 ITY1641 LIN → BDS Jul 8, 12:55 UTCJul 8, 14:05 UTC1h 10m
2026-07-08 ITY1648 - Jul 8, 09:50 UTCJul 8, 11:10 UTC1h 20m
2026-07-08 ITY1649 LIN → BRI Jul 8, 07:05 UTCJul 8, 08:15 UTC1h 10m
2026-07-08 ITY2010 - Jul 8, 05:25 UTCJul 8, 06:10 UTC45m
2026-07-07 ITY2125 - Jul 7, 19:15 UTCJul 7, 19:55 UTC40m
2026-07-07 ITY1632 BRI → LIN Jul 7, 16:50 UTCJul 7, 18:05 UTC1h 15m
2026-07-07 ITY1647 LIN → BRI Jul 7, 14:20 UTCJul 7, 15:30 UTC1h 10m
2026-07-07 ITY1654 - Jul 7, 12:05 UTCJul 7, 13:25 UTC1h 20m
2026-07-07 ITY1655 LIN → BRI Jul 7, 09:25 UTCJul 7, 10:35 UTC1h 10m
2026-07-07 ITY1286 - Jul 7, 06:50 UTCJul 7, 07:50 UTC1h 0m
2026-07-07 ITY1285 - Jul 7, 04:25 UTCJul 7, 05:15 UTC50m
2026-07-06 ITY113 AMS → LIN Jul 6, 18:20 UTCJul 6, 19:30 UTC1h 10m
2026-07-06 ITY112 LIN → AMS Jul 6, 15:30 UTCJul 6, 17:05 UTC1h 35m
2026-07-06 ITY1196 REG → LIN Jul 6, 10:40 UTCJul 6, 12:05 UTC1h 25m
2026-07-06 ITY1195 LIN → REG Jul 6, 07:45 UTCJul 6, 09:10 UTC1h 25m
2026-07-05 ITY8012 - Jul 5, 22:50 UTCJul 6, 00:05 UTC1h 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-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?
No active broadcast right now. Last signal was 1d ago.
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, ITY1196, ITY1195, ITY2059, ITY1684.