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 ITY1170 · 18,550 ft
Flights observed
579
Distinct callsigns
20
Country
IE
Last broadcast
1h 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
ITY1IP - 10 2026-07-10
ITY1296 ITA Airways 9 2026-06-25
ITY1287 - 9 2026-06-25
ITY6BO - 8 2026-07-14
ITY1603 - 8 2026-07-13
ITY578 - 7 2026-07-06
ITY3LO ITA Airways 7 2026-06-25
ITY353 ITA Airways 7 2026-06-25
ITY7CI - 6 2026-07-14
ITY2044 - 6 2026-07-10
ITY1768 ITA Airways 6 2026-06-03
ITY1727 ITA Airways 6 2026-06-02
ITY1718 ITA Airways 6 2026-06-02
ITY1625 - 6 2026-07-12
ITY1620 - 6 2026-07-13
ITY151 ITA Airways 6 2026-06-11
ITY148 ITA Airways 6 2026-06-11
ITY577 - 5 2026-07-06
ITY433 ITA Airways 5 2026-06-19
ITY2055 - 5 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ITY7CI - Jul 14, 16:10 UTCJul 14, 17:00 UTC50m
2026-07-14 ITY091 - Jul 14, 12:15 UTCJul 14, 14:25 UTC2h 10m
2026-07-14 ITY090 - Jul 14, 08:00 UTCJul 14, 10:20 UTC2h 20m
2026-07-14 ITY6BO - Jul 14, 04:50 UTCJul 14, 05:40 UTC50m
2026-07-13 ITY1603 - Jul 13, 20:40 UTCJul 13, 21:30 UTC50m
2026-07-13 ITY1480 - Jul 13, 17:45 UTCJul 13, 18:25 UTC40m
2026-07-13 ITY1467 - Jul 13, 16:00 UTCJul 13, 16:45 UTC45m
2026-07-13 ITY345 - Jul 13, 13:55 UTCJul 13, 14:45 UTC50m
2026-07-13 ITY344 - Jul 13, 11:45 UTCJul 13, 12:40 UTC55m
2026-07-13 ITY887 - Jul 13, 09:10 UTCJul 13, 10:25 UTC1h 15m
2026-07-13 ITY886 - Jul 13, 06:50 UTCJul 13, 07:55 UTC1h 5m
2026-07-13 ITY1620 - Jul 13, 04:15 UTCJul 13, 05:10 UTC55m
2026-07-12 ITY1625 - Jul 12, 20:35 UTCJul 12, 21:25 UTC50m
2026-07-12 ITY885 - Jul 12, 17:50 UTCJul 12, 19:05 UTC1h 15m
2026-07-12 ITY884 - Jul 12, 15:55 UTCJul 12, 16:50 UTC55m
2026-07-12 ITY1792 - Jul 12, 13:45 UTCJul 12, 14:30 UTC45m
2026-07-12 ITY1781 - Jul 12, 11:45 UTCJul 12, 12:15 UTC30m
2026-07-12 ITY1384 - Jul 12, 09:35 UTCJul 12, 10:15 UTC40m
2026-07-12 ITY1383 FCO → GOA Jul 12, 07:40 UTCJul 12, 08:20 UTC40m
2026-07-12 ITY1460 - Jul 12, 04:25 UTCJul 12, 05:05 UTC40m
2026-07-11 ITY1473 - Jul 11, 21:10 UTCJul 11, 22:05 UTC55m
2026-07-11 ITY063 MAD → FCO Jul 11, 16:35 UTCJul 11, 18:30 UTC1h 55m
2026-07-11 ITY060 - Jul 11, 12:55 UTCJul 11, 15:05 UTC2h 10m
2026-07-11 ITY1784 - Jul 11, 10:45 UTCJul 11, 11:30 UTC45m
2026-07-11 ITY1785 - Jul 11, 08:45 UTCJul 11, 09:15 UTC30m
2026-07-11 ITY1770 - Jul 11, 05:55 UTCJul 11, 06:40 UTC45m
2026-07-10 ITY1IP - Jul 10, 20:20 UTCJul 10, 21:40 UTC1h 20m
2026-07-10 ITY1720 - Jul 10, 17:50 UTCJul 10, 19:15 UTC1h 25m
2026-07-10 ITY1721 - Jul 10, 14:55 UTCJul 10, 16:20 UTC1h 25m
2026-07-10 ITY2044 - Jul 10, 12:50 UTCJul 10, 13:40 UTC50m
2026-07-10 ITY1466 VCE → FCO Jul 10, 10:10 UTCJul 10, 11:00 UTC50m
2026-07-10 ITY1463 - Jul 10, 08:05 UTCJul 10, 08:50 UTC45m
2026-07-10 ITY1PR - Jul 10, 04:45 UTCJul 10, 05:10 UTC25m
2026-07-09 ITY1267 - Jul 9, 20:00 UTCJul 9, 20:20 UTC20m
2026-07-09 ITY1274 - Jul 9, 18:25 UTCJul 9, 18:50 UTC25m
2026-07-09 ITY1271 - Jul 9, 16:45 UTCJul 9, 17:10 UTC25m
2026-07-09 ITY1178 SUF → FCO Jul 9, 14:45 UTCJul 9, 15:35 UTC50m
2026-07-09 ITY1171 FCO → SUF Jul 9, 12:50 UTCJul 9, 13:40 UTC50m
2026-07-09 ITY1466 - Jul 9, 10:30 UTCJul 9, 11:15 UTC45m
2026-07-09 ITY1463 - Jul 9, 08:30 UTCJul 9, 09:10 UTC40m
2026-07-09 ITY1380 - Jul 9, 05:00 UTCJul 9, 05:40 UTC40m
2026-07-08 ITY1389 - Jul 8, 20:15 UTCJul 8, 20:55 UTC40m
2026-07-08 ITY325 - Jul 8, 16:35 UTCJul 8, 18:10 UTC1h 35m
2026-07-08 ITY324 - Jul 8, 13:35 UTCJul 8, 15:20 UTC1h 45m
2026-07-08 ITY571 - Jul 8, 09:30 UTCJul 8, 10:35 UTC1h 5m
2026-07-08 ITY572 - Jul 8, 07:20 UTCJul 8, 08:30 UTC1h 10m
2026-07-08 ITY1620 - Jul 8, 04:35 UTCJul 8, 05:30 UTC55m
2026-07-07 ITY1625 FCO → BDS Jul 7, 20:10 UTCJul 7, 21:00 UTC50m
2026-07-07 ITY1392 GOA → FCO Jul 7, 17:30 UTCJul 7, 18:10 UTC40m
2026-07-07 ITY1391 FCO → GOA Jul 7, 15:55 UTCJul 7, 16:35 UTC40m

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, ITY1296, ITY1287, ITY6BO, ITY1603.