Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4CAEFB

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-MVB · AIRBUS A220-100

Hex
4CAEFB
Octal
23127373
Decimal
5,025,531
Country
IE
Tail
EI-MVB
Type
BCS1
Broadcasting now · callsign ITY4LI · 6,925 ft
Flights observed
572
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 20:30 UTC

Current position

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

Country allocation

The ICAO 24-bit address 4CAEFB 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
ITY227 - 19 2026-07-17
ITY226 - 19 2026-07-17
ITY220 - 18 2026-07-08
ITY219 - 18 2026-07-08
ITY221 - 16 2026-07-09
ITY218 - 16 2026-07-09
ITY238 - 15 2026-07-24
ITY224 - 15 2026-07-23
ITY247 - 14 2026-07-24
ITY217 ITA Airways 14 2026-07-24
ITY2080 - 8 2026-07-03
ITY453 - 6 2026-07-15
ITY452 - 6 2026-07-15
ITY2045 - 6 2026-07-18
ITY1278 ITA Airways 6 2026-07-23
ITY113 ITA Airways 6 2026-05-04
ITY305 - 5 2026-07-01
ITY300 - 5 2026-07-01
ITY2044 - 5 2026-07-26
ITY1787 - 5 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY051 LIN → PMI Jul 26, 19:00 UTCJul 26, 20:15 UTC1h 15m
2026-07-26 ITY050 PMI → LIN Jul 26, 15:35 UTCJul 26, 17:00 UTC1h 25m
2026-07-26 ITY2044 - Jul 26, 13:50 UTCJul 26, 14:35 UTC45m
2026-07-26 ITY1724 CTA → FCO Jul 26, 10:35 UTCJul 26, 11:35 UTC1h 0m
2026-07-26 ITY1731 FCO → CTA Jul 26, 08:20 UTCJul 26, 09:20 UTC1h 0m
2026-07-26 ITY1356 TRS → FCO Jul 26, 05:05 UTCJul 26, 06:00 UTC55m
2026-07-25 ITY1363 FCO → TRS Jul 25, 20:25 UTCJul 25, 21:10 UTC45m
2026-07-25 ITY1430 - Jul 25, 17:50 UTCJul 25, 18:30 UTC40m
2026-07-25 ITY1236 - Jul 25, 16:00 UTCJul 25, 16:45 UTC45m
2026-07-25 ITY1237 - Jul 25, 13:40 UTCJul 25, 14:30 UTC50m
2026-07-25 ITY1417 - Jul 25, 11:50 UTCJul 25, 12:45 UTC55m
2026-07-25 ITY1358 TRS → FCO Jul 25, 09:45 UTCJul 25, 10:30 UTC45m
2026-07-25 ITY1357 FCO → TRS Jul 25, 08:00 UTCJul 25, 08:45 UTC45m
2026-07-24 ITY2125 LIN → FCO Jul 24, 19:10 UTCJul 24, 19:55 UTC45m
2026-07-24 ITY247 - Jul 24, 16:10 UTCJul 24, 17:35 UTC1h 25m
2026-07-24 ITY238 LIN → LCY Jul 24, 13:50 UTCJul 24, 15:15 UTC1h 25m
2026-07-24 ITY1654 - Jul 24, 11:40 UTCJul 24, 12:50 UTC1h 10m
2026-07-24 ITY1655 LIN → BRI Jul 24, 09:25 UTCJul 24, 10:30 UTC1h 5m
2026-07-24 ITY217 LCY → LIN Jul 24, 06:00 UTCJul 24, 07:25 UTC1h 25m
2026-07-23 ITY224 - Jul 23, 18:30 UTCJul 23, 20:00 UTC1h 30m
2026-07-23 ITY247 - Jul 23, 16:05 UTCJul 23, 17:30 UTC1h 25m
2026-07-23 ITY238 LIN → LCY Jul 23, 13:20 UTCJul 23, 14:45 UTC1h 25m
2026-07-23 ITY1772 - Jul 23, 09:30 UTCJul 23, 10:55 UTC1h 25m
2026-07-23 ITY1773 LIN → PMO Jul 23, 06:50 UTCJul 23, 08:00 UTC1h 10m
2026-07-23 ITY1278 NAP → LIN Jul 23, 04:40 UTCJul 23, 05:40 UTC1h 0m
2026-07-22 ITY1297 - Jul 22, 19:15 UTCJul 22, 20:20 UTC1h 5m
2026-07-22 ITY1632 - Jul 22, 16:45 UTCJul 22, 18:00 UTC1h 15m
2026-07-22 ITY1647 LIN → BRI Jul 22, 14:15 UTCJul 22, 15:15 UTC1h 0m
2026-07-22 ITY1654 - Jul 22, 12:00 UTCJul 22, 13:10 UTC1h 10m
2026-07-22 ITY2013 LIN → FCO Jul 22, 05:20 UTCJul 22, 05:25 UTC5m
2026-07-21 ITY1790 - Jul 21, 20:25 UTCJul 21, 21:40 UTC1h 15m
2026-07-21 ITY1793 LIN → PMO Jul 21, 17:50 UTCJul 21, 19:00 UTC1h 10m
2026-07-21 ITY2092 - Jul 21, 15:50 UTCJul 21, 16:40 UTC50m
2026-07-20 ITY1622 BDS → FCO Jul 20, 15:20 UTCJul 20, 16:15 UTC55m
2026-07-20 ITY1619 - Jul 20, 13:40 UTCJul 20, 14:25 UTC45m
2026-07-20 ITY1466 VCE → FCO Jul 20, 10:50 UTCJul 20, 11:35 UTC45m
2026-07-20 ITY1463 - Jul 20, 08:30 UTCJul 20, 09:25 UTC55m
2026-07-20 ITY1432 - Jul 20, 04:55 UTCJul 20, 05:40 UTC45m
2026-07-19 ITY1431 - Jul 19, 21:25 UTCJul 19, 22:20 UTC55m
2026-07-19 ITY055 FCO → MAH Jul 19, 19:00 UTCJul 19, 20:05 UTC1h 5m
2026-07-19 ITY054 - Jul 19, 16:55 UTCJul 19, 18:05 UTC1h 10m
2026-07-19 ITY2061 LIN → FCO Jul 19, 14:40 UTCJul 19, 15:25 UTC45m
2026-07-19 ITY2044 - Jul 19, 12:35 UTCJul 19, 13:30 UTC55m
2026-07-19 ITY1724 CTA → FCO Jul 19, 10:05 UTCJul 19, 11:05 UTC1h 0m
2026-07-19 ITY1731 FCO → CTA Jul 19, 08:05 UTCJul 19, 08:55 UTC50m
2026-07-18 ITY1170 - Jul 18, 18:00 UTCJul 18, 18:50 UTC50m
2026-07-18 ITY7CI - Jul 18, 16:15 UTCJul 18, 17:00 UTC45m
2026-07-18 ITY2045 - Jul 18, 10:05 UTCJul 18, 10:50 UTC45m
2026-07-18 ITY151 BRU → LIN Jul 18, 07:45 UTCJul 18, 08:50 UTC1h 5m
2026-07-18 ITY148 LIN → BRU Jul 18, 05:10 UTCJul 18, 06:20 UTC1h 10m

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

Mode-S 4CAEFB frequently asked

What is Mode-S code 4CAEFB?
4CAEFB is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-MVB.
Where is Mode-S 4CAEFB registered?
Mode-S code 4CAEFB is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAEFB broadcasting right now?
Yes. Mode-S 4CAEFB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAEFB, octal 23127373, decimal 5,025,531.
What flights does 4CAEFB operate?
Mode-S 4CAEFB has broadcast 20 distinct callsigns, including ITY227, ITY226, ITY220, ITY219, ITY221.