Apparatus

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sensors Mode-S transponder

4CA8F4

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-IMB · AIRBUS A-319

Hex
4CA8F4
Octal
23124364
Decimal
5,023,988
Country
IE
Tail
EI-IMB
Type
A319
No current signal · last broadcast 4d ago
Flights observed
362
Distinct callsigns
20
Country
IE
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 4CA8F4.

Country allocation

The ICAO 24-bit address 4CA8F4 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
ITY3OL - 11 2026-07-09
ITY356 - 11 2026-07-08
ITY1684 - 11 2026-07-03
ITY1679 - 11 2026-07-03
ITY1196 - 11 2026-07-07
ITY1195 - 11 2026-07-07
ITY2050 - 10 2026-07-08
ITY2059 ITA Airways 9 2026-06-25
ITY1765 - 7 2026-07-09
ITY1678 - 7 2026-07-04
ITY1675 - 7 2026-07-04
ITY1764 - 6 2026-06-26
ITY9947 - 5 2026-04-17
ITY1681 - 5 2026-07-07
ITY1676 - 5 2026-07-08
ITY1650 - 5 2026-07-01
ITY1639 - 5 2026-07-01
ITY4LI - 4 2026-07-06
ITY2029 ITA Airways 4 2026-06-13
ITY2010 - 4 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 ITY1267 - Jul 10, 20:25 UTCJul 10, 20:50 UTC25m
2026-07-10 ITY867 - Jul 10, 17:35 UTCJul 10, 18:20 UTC45m
2026-07-10 ITY866 FCO → TUN Jul 10, 15:30 UTCJul 10, 16:25 UTC55m
2026-07-10 ITY585 - Jul 10, 10:20 UTCJul 10, 11:20 UTC1h 0m
2026-07-10 ITY582 - Jul 10, 08:05 UTCJul 10, 08:55 UTC50m
2026-07-10 ITY1154 - Jul 10, 04:25 UTCJul 10, 05:25 UTC1h 0m
2026-07-09 ITY1161 - Jul 9, 20:05 UTCJul 9, 20:55 UTC50m
2026-07-09 ITY577 - Jul 9, 17:55 UTCJul 9, 18:55 UTC1h 0m
2026-07-09 ITY578 - Jul 9, 15:25 UTCJul 9, 16:35 UTC1h 10m
2026-07-09 ITY1784 - Jul 9, 10:40 UTCJul 9, 11:25 UTC45m
2026-07-09 ITY1765 - Jul 9, 08:20 UTCJul 9, 09:30 UTC1h 10m
2026-07-09 ITY3OL ORY → LIN Jul 9, 05:40 UTCJul 9, 06:45 UTC1h 5m
2026-07-08 ITY356 LIN → ORY Jul 8, 18:50 UTCJul 8, 19:55 UTC1h 5m
2026-07-08 ITY2050 - Jul 8, 17:05 UTCJul 8, 17:55 UTC50m
2026-07-08 ITY1364 - Jul 8, 14:20 UTCJul 8, 15:00 UTC40m
2026-07-08 ITY1359 - Jul 8, 12:35 UTCJul 8, 13:25 UTC50m
2026-07-08 ITY1724 - Jul 8, 10:20 UTCJul 8, 11:20 UTC1h 0m
2026-07-08 ITY1731 - Jul 8, 08:05 UTCJul 8, 09:00 UTC55m
2026-07-08 ITY1676 - Jul 8, 04:25 UTCJul 8, 04:55 UTC30m
2026-07-07 ITY1681 - Jul 7, 20:15 UTCJul 7, 20:45 UTC30m
2026-07-07 ITY867 - Jul 7, 17:40 UTCJul 7, 18:35 UTC55m
2026-07-07 ITY866 FCO → TUN Jul 7, 15:50 UTCJul 7, 16:30 UTC40m
2026-07-07 ITY2071 LIN → FCO Jul 7, 13:40 UTCJul 7, 14:25 UTC45m
2026-07-07 ITY1196 REG → LIN Jul 7, 10:35 UTCJul 7, 12:00 UTC1h 25m
2026-07-07 ITY1195 LIN → REG Jul 7, 08:05 UTCJul 7, 09:20 UTC1h 15m
2026-07-06 ITY8001 - Jul 6, 23:30 UTCJul 7, 00:45 UTC1h 15m
2026-07-06 ITY4LI - Jul 6, 20:40 UTCJul 6, 21:55 UTC1h 15m
2026-07-06 ITY1790 - Jul 6, 18:20 UTCJul 6, 19:35 UTC1h 15m
2026-07-06 ITY1793 LIN → PMO Jul 6, 15:45 UTCJul 6, 17:00 UTC1h 15m
2026-07-05 ITY153 - Jul 5, 18:25 UTCJul 5, 19:25 UTC1h 0m
2026-07-05 ITY154 LIN → BRU Jul 5, 16:05 UTCJul 5, 17:15 UTC1h 10m
2026-07-05 ITY2038 FCO → LIN Jul 5, 13:45 UTCJul 5, 14:30 UTC45m
2026-07-04 ITY885 MLA → FCO Jul 4, 17:25 UTCJul 4, 18:30 UTC1h 5m
2026-07-04 ITY884 - Jul 4, 15:30 UTCJul 4, 16:35 UTC1h 5m
2026-07-04 ITY1156 REG → FCO Jul 4, 13:20 UTCJul 4, 14:15 UTC55m
2026-07-04 ITY1157 FCO → REG Jul 4, 11:45 UTCJul 4, 12:30 UTC45m
2026-07-04 ITY1678 - Jul 4, 09:50 UTCJul 4, 10:15 UTC25m
2026-07-04 ITY1675 - Jul 4, 08:15 UTCJul 4, 08:40 UTC25m
2026-07-04 ITY1676 - Jul 4, 04:35 UTCJul 4, 05:00 UTC25m
2026-07-03 ITY1681 - Jul 3, 20:05 UTCJul 3, 20:25 UTC20m
2026-07-03 ITY1684 - Jul 3, 17:35 UTCJul 3, 18:15 UTC40m
2026-07-03 ITY1679 - Jul 3, 15:35 UTCJul 3, 16:05 UTC30m
2026-07-03 ITY1156 REG → FCO Jul 3, 13:30 UTCJul 3, 14:25 UTC55m
2026-07-03 ITY1157 FCO → REG Jul 3, 11:50 UTCJul 3, 12:35 UTC45m
2026-07-03 ITY1678 - Jul 3, 10:05 UTCJul 3, 10:35 UTC30m
2026-07-03 ITY1675 - Jul 3, 08:15 UTCJul 3, 08:55 UTC40m
2026-07-03 ITY2055 - Jul 3, 05:55 UTCJul 3, 06:40 UTC45m
2026-07-02 ITY311 - Jul 2, 20:10 UTCJul 2, 21:20 UTC1h 10m
2026-07-02 ITY358 - Jul 2, 17:50 UTCJul 2, 18:55 UTC1h 5m
2026-07-02 ITY2092 - Jul 2, 15:55 UTCJul 2, 16:45 UTC50m

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

Mode-S 4CA8F4 frequently asked

What is Mode-S code 4CA8F4?
4CA8F4 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-IMB.
Where is Mode-S 4CA8F4 registered?
Mode-S code 4CA8F4 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA8F4 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA8F4, octal 23124364, decimal 5,023,988.
What flights does 4CA8F4 operate?
Mode-S 4CA8F4 has broadcast 20 distinct callsigns, including ITY3OL, ITY356, ITY1684, ITY1679, ITY1196.