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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 ITY1729 · 13,625 ft
Flights observed
646
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 19:40 UTC

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
ITY1IP ITA Airways 11 2026-07-24
ITY6BO ITA Airways 9 2026-07-23
ITY578 ITA Airways 9 2026-07-26
ITY1603 - 9 2026-07-22
ITY1296 ITA Airways 9 2026-06-25
ITY1287 - 9 2026-06-25
ITY2044 - 8 2026-07-24
ITY577 ITA Airways 7 2026-07-26
ITY3LO ITA Airways 7 2026-06-25
ITY353 ITA Airways 7 2026-06-25
ITY1768 ITA Airways 7 2026-07-25
ITY1727 ITA Airways 7 2026-07-25
ITY1721 ITA Airways 7 2026-07-24
ITY1720 - 7 2026-07-24
ITY1718 ITA Airways 7 2026-07-25
ITY7CI - 6 2026-07-14
ITY2055 ITA Airways 6 2026-07-21
ITY1723 ITA Airways 6 2026-07-19
ITY1704 ITA Airways 6 2026-07-19
ITY1702 - 6 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY577 GVA → FCO Jul 26, 18:35 UTCJul 26, 19:40 UTC1h 5m
2026-07-26 ITY578 FCO → GVA Jul 26, 16:00 UTCJul 26, 17:10 UTC1h 10m
2026-07-26 ITY719 ATH → FCO Jul 26, 09:35 UTCJul 26, 11:25 UTC1h 50m
2026-07-26 ITY720 FCO → ATH Jul 26, 06:35 UTCJul 26, 08:05 UTC1h 30m
2026-07-26 ITY1722 CTA → FCO Jul 26, 04:05 UTCJul 26, 05:10 UTC1h 5m
2026-07-25 ITY4LI LIN → CTA Jul 25, 19:50 UTCJul 25, 21:15 UTC1h 25m
2026-07-25 ITY051 LIN → PMI Jul 25, 16:30 UTCJul 25, 17:40 UTC1h 10m
2026-07-25 ITY050 PMI → LIN Jul 25, 13:55 UTCJul 25, 15:20 UTC1h 25m
2026-07-25 ITY1718 CTA → LIN Jul 25, 10:25 UTCJul 25, 12:00 UTC1h 35m
2026-07-25 ITY1727 LIN → CTA Jul 25, 07:05 UTCJul 25, 08:25 UTC1h 20m
2026-07-25 ITY1768 PMO → LIN Jul 25, 04:25 UTCJul 25, 05:45 UTC1h 20m
2026-07-24 ITY1IP LIN → PMO Jul 24, 22:00 UTCJul 24, 23:05 UTC1h 5m
2026-07-24 ITY1720 - Jul 24, 19:30 UTCJul 24, 20:55 UTC1h 25m
2026-07-24 ITY1721 LIN → CTA Jul 24, 16:45 UTCJul 24, 18:05 UTC1h 20m
2026-07-24 ITY2044 - Jul 24, 14:20 UTCJul 24, 15:15 UTC55m
2026-07-24 ITY719 ATH → FCO Jul 24, 09:40 UTCJul 24, 11:35 UTC1h 55m
2026-07-24 ITY720 FCO → ATH Jul 24, 06:50 UTCJul 24, 08:20 UTC1h 30m
2026-07-24 ITY1PR NAP → FCO Jul 24, 04:45 UTCJul 24, 05:10 UTC25m
2026-07-23 ITY1297 - Jul 23, 20:50 UTCJul 23, 21:40 UTC50m
2026-07-23 ITY1720 - Jul 23, 18:10 UTCJul 23, 19:50 UTC1h 40m
2026-07-23 ITY1721 LIN → CTA Jul 23, 15:35 UTCJul 23, 16:55 UTC1h 20m
2026-07-23 ITY2044 FCO → LIN Jul 23, 13:10 UTCJul 23, 14:05 UTC55m
2026-07-23 ITY159 - Jul 23, 09:50 UTCJul 23, 11:20 UTC1h 30m
2026-07-23 ITY156 FCO → BRU Jul 23, 06:55 UTCJul 23, 08:45 UTC1h 50m
2026-07-23 ITY6BO BRI → FCO Jul 23, 04:35 UTCJul 23, 05:25 UTC50m
2026-07-22 ITY1603 - Jul 22, 20:55 UTCJul 22, 21:35 UTC40m
2026-07-22 ITY1392 GOA → FCO Jul 22, 18:25 UTCJul 22, 19:10 UTC45m
2026-07-22 ITY1391 FCO → GOA Jul 22, 16:45 UTCJul 22, 17:30 UTC45m
2026-07-22 ITY1622 BDS → FCO Jul 22, 14:35 UTCJul 22, 15:30 UTC55m
2026-07-22 ITY1619 - Jul 22, 12:50 UTCJul 22, 13:35 UTC45m
2026-07-22 ITY1356 TRS → FCO Jul 22, 04:40 UTCJul 22, 05:25 UTC45m
2026-07-21 ITY1363 FCO → TRS Jul 21, 20:15 UTCJul 21, 21:00 UTC45m
2026-07-21 ITY577 - Jul 21, 17:25 UTCJul 21, 18:25 UTC1h 0m
2026-07-21 ITY578 - Jul 21, 15:00 UTCJul 21, 16:15 UTC1h 15m
2026-07-21 ITY091 AGP → FCO Jul 21, 11:25 UTCJul 21, 13:25 UTC2h 0m
2026-07-21 ITY090 - Jul 21, 07:55 UTCJul 21, 10:10 UTC2h 15m
2026-07-21 ITY2055 LIN → FCO Jul 21, 05:40 UTCJul 21, 06:25 UTC45m
2026-07-20 ITY1298 - Jul 20, 19:55 UTCJul 20, 20:50 UTC55m
2026-07-20 ITY1291 - Jul 20, 17:35 UTCJul 20, 18:20 UTC45m
2026-07-20 ITY1184 - Jul 20, 15:00 UTCJul 20, 16:25 UTC1h 25m
2026-07-20 ITY1185 - Jul 20, 12:25 UTCJul 20, 13:40 UTC1h 15m
2026-07-20 ITY1772 - Jul 20, 09:35 UTCJul 20, 10:50 UTC1h 15m
2026-07-20 ITY1773 LIN → PMO Jul 20, 07:00 UTCJul 20, 08:10 UTC1h 10m
2026-07-20 ITY1278 NAP → LIN Jul 20, 04:40 UTCJul 20, 05:40 UTC1h 0m
2026-07-19 ITY1297 - Jul 19, 19:50 UTCJul 19, 20:40 UTC50m
2026-07-19 ITY453 MUC → LIN Jul 19, 17:50 UTCJul 19, 18:35 UTC45m
2026-07-19 ITY452 LIN → MUC Jul 19, 15:55 UTCJul 19, 16:40 UTC45m
2026-07-19 ITY1704 CTA → LIN Jul 19, 12:35 UTCJul 19, 14:05 UTC1h 30m
2026-07-19 ITY1723 LIN → CTA Jul 19, 08:00 UTCJul 19, 09:20 UTC1h 20m
2026-07-19 ITY1176 SUF → LIN Jul 19, 04:40 UTCJul 19, 06:05 UTC1h 25m

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 ITY1IP, ITY6BO, ITY578, ITY1603, ITY1296.