Apparatus

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sensors Mode-S transponder

4CAF1D

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-TEB · AIRBUS A220-300

Hex
4CAF1D
Octal
23127435
Decimal
5,025,565
Country
IE
Tail
EI-TEB
Type
BCS3
Broadcasting now · callsign ITY1750 · 29,800 ft
Flights observed
293
Distinct callsigns
20
Country
IE
Last broadcast
2h ago

Current position

4CAF1D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CAF1D 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
ITY1296 ITA Airways 6 2026-05-22
ITY1287 ITA Airways 6 2026-05-22
ITY578 ITA Airways 5 2026-05-23
ITY3LO ITA Airways 5 2026-05-22
ITY353 ITA Airways 5 2026-05-22
ITY1IP ITA Airways 5 2026-05-19
ITY1768 ITA Airways 5 2026-05-20
ITY1727 ITA Airways 5 2026-05-20
ITY1718 ITA Airways 5 2026-05-20
ITY151 ITA Airways 5 2026-05-22
ITY148 ITA Airways 5 2026-05-22
ITY1742 ITA Airways 4 2026-05-23
ITY1731 ITA Airways 4 2026-05-01
ITY1724 ITA Airways 4 2026-05-01
ITY1723 ITA Airways 4 2026-05-17
ITY1702 ITA Airways 4 2026-05-14
ITY1701 ITA Airways 4 2026-05-14
ITY1286 ITA Airways 4 2026-05-21
ITY1285 ITA Airways 4 2026-05-21
ITY716 ITA Airways 3 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ITY1741 FCO → CTA May 30, 11:15 UTCMay 30, 12:00 UTC45m
2026-05-30 ITY1314 BLQ → FCO May 30, 09:20 UTCMay 30, 09:55 UTC35m
2026-05-30 ITY1311 FCO → BLQ May 30, 07:30 UTCMay 30, 08:10 UTC40m
2026-05-30 ITY1432 TRN → FCO May 30, 05:30 UTCMay 30, 06:20 UTC50m
2026-05-29 ITY1431 FCO → TRN May 29, 20:15 UTCMay 29, 21:05 UTC50m
2026-05-29 ITY109 AMS → FCO May 29, 16:35 UTCMay 29, 18:35 UTC2h 0m
2026-05-29 ITY110 FCO → AMS May 29, 13:15 UTCMay 29, 15:25 UTC2h 10m
2026-05-29 ITY1466 VCE → FCO May 29, 10:55 UTCMay 29, 11:35 UTC40m
2026-05-29 ITY1463 FCO → VCE May 29, 08:55 UTCMay 29, 09:35 UTC40m
2026-05-29 ITY1356 TRS → FCO May 29, 04:45 UTCMay 29, 05:30 UTC45m
2026-05-28 ITY1363 FCO → TRS May 28, 20:50 UTCMay 28, 21:40 UTC50m
2026-05-28 ITY433 MUC → FCO May 28, 18:10 UTCMay 28, 19:15 UTC1h 5m
2026-05-28 ITY436 FCO → MUC May 28, 15:45 UTCMay 28, 17:00 UTC1h 15m
2026-05-28 ITY1788 PMO → FCO May 28, 13:45 UTCMay 28, 14:30 UTC45m
2026-05-28 ITY1779 FCO → PMO May 28, 11:45 UTCMay 28, 12:25 UTC40m
2026-05-28 ITY1264 NAP → FCO May 28, 09:15 UTCMay 28, 09:45 UTC30m
2026-05-28 ITY1263 FCO → NAP May 28, 07:35 UTCMay 28, 08:00 UTC25m
2026-05-28 ITY1432 TRN → FCO May 28, 05:00 UTCMay 28, 05:50 UTC50m
2026-05-27 ITY1431 FCO → TRN May 27, 20:00 UTCMay 27, 20:50 UTC50m
2026-05-27 ITY1392 GOA → FCO May 27, 17:45 UTCMay 27, 18:25 UTC40m
2026-05-27 ITY1391 FCO → GOA May 27, 16:00 UTCMay 27, 16:40 UTC40m
2026-05-27 ITY1462 VCE → FCO May 27, 14:00 UTCMay 27, 14:45 UTC45m
2026-05-27 ITY1475 FCO → VCE May 27, 12:15 UTCMay 27, 13:00 UTC45m
2026-05-27 ITY1466 VCE → FCO May 27, 10:05 UTCMay 27, 10:50 UTC45m
2026-05-27 ITY1463 FCO → VCE May 27, 07:40 UTCMay 27, 08:25 UTC45m
2026-05-27 ITY1620 BDS → FCO May 27, 04:30 UTCMay 27, 05:19 UTC50m
2026-05-26 ITY1625 FCO → BDS May 26, 20:50 UTCMay 26, 21:40 UTC50m
2026-05-26 ITY1712 CTA → FCO May 26, 18:40 UTCMay 26, 19:34 UTC55m
2026-05-26 ITY1733 FCO → CTA May 26, 16:35 UTCMay 26, 17:25 UTC50m
2026-05-26 ITY1270 NAP → FCO May 26, 14:00 UTCMay 26, 14:24 UTC25m
2026-05-26 ITY1269 FCO → NAP May 26, 12:14 UTCMay 26, 12:40 UTC25m
2026-05-26 ITY1612 BRI → FCO May 26, 10:14 UTCMay 26, 10:54 UTC40m
2026-05-26 ITY1617 FCO → BRI May 26, 08:15 UTCMay 26, 09:04 UTC50m
2026-05-26 ITY1432 TRN → FCO May 26, 04:50 UTCMay 26, 05:45 UTC55m
2026-05-25 ITY1431 FCO → TRN May 25, 20:24 UTCMay 25, 21:15 UTC50m
2026-05-25 ITY1170 SUF → FCO May 25, 17:55 UTCMay 25, 18:45 UTC50m
2026-05-25 ITY7CI FCO → SUF May 25, 16:05 UTCMay 25, 16:50 UTC45m
2026-05-25 ITY1616 BRI → FCO May 25, 13:55 UTCMay 25, 14:40 UTC45m
2026-05-25 ITY1613 FCO → BRI May 25, 12:10 UTCMay 25, 12:55 UTC45m
2026-05-25 ITY1624 BDS → FCO May 25, 09:30 UTCMay 25, 10:20 UTC50m
2026-05-25 ITY1621 FCO → BDS May 25, 07:45 UTCMay 25, 08:35 UTC50m
2026-05-25 ITY1620 BDS → FCO May 25, 04:25 UTCMay 25, 05:15 UTC50m
2026-05-24 ITY1625 FCO → BDS May 24, 20:15 UTCMay 24, 21:00 UTC45m
2026-05-24 ITY721 ATH → FCO May 24, 17:10 UTCMay 24, 18:50 UTC1h 40m
2026-05-24 ITY718 FCO → ATH May 24, 14:20 UTCMay 24, 16:00 UTC1h 40m
2026-05-24 ITY715 ATH → FCO May 24, 11:05 UTCMay 24, 12:45 UTC1h 40m
2026-05-24 ITY716 FCO → ATH May 24, 08:15 UTCMay 24, 09:55 UTC1h 40m
2026-05-24 ITY1620 BDS → FCO May 24, 04:20 UTCMay 24, 05:15 UTC55m
2026-05-23 ITY1625 FCO → BDS May 23, 19:55 UTCMay 23, 20:50 UTC55m
2026-05-23 ITY577 GVA → FCO May 23, 17:15 UTCMay 23, 18:15 UTC1h 1m

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

Mode-S 4CAF1D frequently asked

What is Mode-S code 4CAF1D?
4CAF1D is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-TEB.
Where is Mode-S 4CAF1D registered?
Mode-S code 4CAF1D is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAF1D broadcasting right now?
Yes. Mode-S 4CAF1D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAF1D, octal 23127435, decimal 5,025,565.
What flights does 4CAF1D operate?
Mode-S 4CAF1D has broadcast 20 distinct callsigns, including ITY1296, ITY1287, ITY578, ITY3LO, ITY353.