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sensors Mode-S transponder

4CAF1E

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-TEC · AIRBUS A220-300

Hex
4CAF1E
Octal
23127436
Decimal
5,025,566
Country
IE
Tail
EI-TEC
Type
BCS3
No current signal · last broadcast Jul 20, 15:00 UTC
Flights observed
635
Distinct callsigns
20
Country
IE
Last broadcast
Jul 20, 15:00 UTC

Last known position

Most recent position reported by Mode-S 4CAF1E.

Country allocation

The ICAO 24-bit address 4CAF1E 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
ITY1IP - 10 2026-07-06
ITY1790 - 10 2026-07-15
ITY1768 - 10 2026-07-07
ITY1793 - 9 2026-07-15
ITY1727 - 9 2026-07-05
ITY1720 - 9 2026-07-19
ITY6BO ITA Airways 8 2026-05-28
ITY1721 - 8 2026-07-19
ITY1719 - 8 2026-07-18
ITY1712 ITA Airways 8 2026-05-28
ITY1603 ITA Airways 8 2026-05-27
ITY1466 ITA Airways 8 2026-06-01
ITY1463 ITA Airways 8 2026-06-01
ITY436 ITA Airways 7 2026-06-08
ITY433 ITA Airways 7 2026-06-08
ITY1733 ITA Airways 7 2026-05-28
ITY1723 - 7 2026-07-01
ITY1296 - 7 2026-07-15
ITY2013 ITA Airways 6 2026-06-02
ITY1742 - 6 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 ITY9925 - Jul 20, 13:45 UTCJul 20, 15:00 UTC1h 15m
2026-07-20 ITY9003 - Jul 20, 11:30 UTCJul 20, 12:55 UTC1h 25m
2026-07-20 ITY9924 - Jul 20, 08:35 UTCJul 20, 10:20 UTC1h 45m
2026-07-20 ITY2055 LIN → FCO Jul 20, 05:35 UTCJul 20, 06:25 UTC50m
2026-07-19 ITY1650 - Jul 19, 20:30 UTCJul 19, 21:45 UTC1h 15m
2026-07-19 ITY1639 - Jul 19, 18:25 UTCJul 19, 19:35 UTC1h 10m
2026-07-19 ITY1720 - Jul 19, 15:30 UTCJul 19, 17:00 UTC1h 30m
2026-07-19 ITY1721 - Jul 19, 12:50 UTCJul 19, 14:10 UTC1h 20m
2026-07-19 ITY1764 - Jul 19, 10:10 UTCJul 19, 11:25 UTC1h 15m
2026-07-19 ITY1765 - Jul 19, 07:40 UTCJul 19, 08:55 UTC1h 15m
2026-07-19 ITY1742 - Jul 19, 05:00 UTCJul 19, 06:30 UTC1h 30m
2026-07-18 ITY1719 - Jul 18, 19:55 UTCJul 18, 20:45 UTC50m
2026-07-18 ITY407 - Jul 18, 17:10 UTCJul 18, 18:40 UTC1h 30m
2026-07-18 ITY404 FCO → FRA Jul 18, 13:55 UTCJul 18, 15:25 UTC1h 30m
2026-07-18 ITY1734 - Jul 18, 11:15 UTCJul 18, 12:15 UTC1h 0m
2026-07-18 ITY1711 - Jul 18, 09:00 UTCJul 18, 10:00 UTC1h 0m
2026-07-18 ITY1728 - Jul 18, 06:15 UTCJul 18, 07:10 UTC55m
2026-07-17 ITY1735 - Jul 17, 20:50 UTCJul 17, 21:34 UTC45m
2026-07-17 ITY1620 - Jul 17, 04:29 UTCJul 17, 05:30 UTC1h 0m
2026-07-16 ITY1625 - Jul 16, 20:25 UTCJul 16, 21:19 UTC55m
2026-07-16 ITY407 - Jul 16, 16:44 UTCJul 16, 18:05 UTC1h 20m
2026-07-16 ITY404 - Jul 16, 13:54 UTCJul 16, 15:25 UTC1h 30m
2026-07-16 ITY1784 - Jul 16, 10:29 UTCJul 16, 11:20 UTC50m
2026-07-16 ITY1785 - Jul 16, 08:40 UTCJul 16, 09:15 UTC35m
2026-07-16 ITY2021 - Jul 16, 06:10 UTCJul 16, 07:00 UTC50m
2026-07-15 ITY1790 PMO → LIN Jul 15, 18:50 UTCJul 15, 20:10 UTC1h 20m
2026-07-15 ITY1793 LIN → PMO Jul 15, 15:25 UTCJul 15, 16:40 UTC1h 15m
2026-07-15 ITY1296 - Jul 15, 12:40 UTCJul 15, 13:40 UTC1h 0m
2026-07-15 ITY1287 - Jul 15, 10:15 UTCJul 15, 11:05 UTC50m
2026-07-15 ITY151 BRU → LIN Jul 15, 07:45 UTCJul 15, 08:50 UTC1h 5m
2026-07-15 ITY148 LIN → BRU Jul 15, 05:20 UTCJul 15, 06:40 UTC1h 20m
2026-07-14 ITY1702 - Jul 14, 19:30 UTCJul 14, 20:55 UTC1h 25m
2026-07-14 ITY1701 - Jul 14, 16:50 UTCJul 14, 18:05 UTC1h 15m
2026-07-14 ITY1786 PMO → LIN Jul 14, 13:50 UTCJul 14, 15:05 UTC1h 15m
2026-07-14 ITY1787 LIN → PMO Jul 14, 11:15 UTCJul 14, 12:30 UTC1h 15m
2026-07-14 ITY1747 - Jul 14, 08:05 UTCJul 14, 09:40 UTC1h 35m
2026-07-14 ITY1746 - Jul 14, 05:30 UTCJul 14, 06:50 UTC1h 20m
2026-07-13 ITY1298 - Jul 13, 19:45 UTCJul 13, 20:45 UTC1h 0m
2026-07-13 ITY1291 - Jul 13, 17:30 UTCJul 13, 18:20 UTC50m
2026-07-13 ITY1184 - Jul 13, 14:50 UTCJul 13, 16:15 UTC1h 25m
2026-07-13 ITY1185 - Jul 13, 12:30 UTCJul 13, 13:50 UTC1h 20m
2026-07-13 ITY351 ORY → LIN Jul 13, 09:10 UTCJul 13, 10:20 UTC1h 10m
2026-07-13 ITY350 LIN → ORY Jul 13, 06:30 UTCJul 13, 07:40 UTC1h 10m
2026-07-13 ITY1278 - Jul 13, 04:40 UTCJul 13, 05:40 UTC1h 0m
2026-07-12 ITY1297 - Jul 12, 20:50 UTCJul 12, 21:40 UTC50m
2026-07-12 ITY1720 - Jul 12, 18:01 UTCJul 12, 19:50 UTC1h 50m
2026-07-12 ITY1721 - Jul 12, 15:01 UTCJul 12, 16:25 UTC1h 25m
2026-07-12 ITY1184 - Jul 12, 12:35 UTCJul 12, 13:55 UTC1h 20m
2026-07-12 ITY1185 - Jul 12, 10:05 UTCJul 12, 11:25 UTC1h 20m
2026-07-12 ITY1747 - Jul 12, 07:20 UTCJul 12, 08:50 UTC1h 30m

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

Mode-S 4CAF1E frequently asked

What is Mode-S code 4CAF1E?
4CAF1E is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-TEC.
Where is Mode-S 4CAF1E registered?
Mode-S code 4CAF1E is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAF1E broadcasting right now?
No active broadcast right now. Last signal was Jul 20, 15:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAF1E, octal 23127436, decimal 5,025,566.
What flights does 4CAF1E operate?
Mode-S 4CAF1E has broadcast 20 distinct callsigns, including ITY1IP, ITY1790, ITY1768, ITY1793, ITY1727.