Apparatus

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sensors Mode-S transponder

4CADFB

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HPB · AIRBUS A-330-900

Hex
4CADFB
Octal
23126773
Decimal
5,025,275
Country
IE
Tail
EI-HPB
Type
A339
No current signal · last broadcast 1h ago
Flights observed
81
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4CADFB.

Country allocation

The ICAO 24-bit address 4CADFB 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
ITY675 ITA Airways 5 2026-05-26
ITY673 ITA Airways 5 2026-06-06
ITY603 ITA Airways 5 2026-05-23
ITY602 ITA Airways 5 2026-05-23
ITY674 ITA Airways 4 2026-05-25
ITY672 ITA Airways 4 2026-06-05
ITY615 ITA Airways 4 2026-05-27
ITY614 ITA Airways 4 2026-05-27
ITY609 ITA Airways 4 2026-06-03
ITY6MO ITA Airways 3 2026-05-21
ITY678 ITA Airways 3 2026-05-28
ITY641 ITA Airways 3 2026-06-04
ITY640 ITA Airways 3 2026-06-04
ITY637 ITA Airways 3 2026-05-13
ITY636 ITA Airways 3 2026-05-13
ITY608 ITA Airways 3 2026-06-03
ITY770 ITA Airways 2 2026-05-05
ITY769 ITA Airways 2 2026-05-05
ITY679 ITA Airways 2 2026-05-28
ITY630 ITA Airways 2 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-07 ITY628 FCO → ORD Jun 7, 07:55 UTCJun 7, 10:45 UTC2h 50m
2026-06-06 ITY673 GIG → FCO Jun 6, 17:40 UTCJun 7, 03:55 UTC10h 15m
2026-06-05 ITY672 FCO → GIG Jun 5, 20:45 UTCJun 6, 07:50 UTC11h 5m
2026-06-04 ITY641 SFO → FCO Jun 4, 23:10 UTCJun 5, 10:40 UTC11h 30m
2026-06-04 ITY640 FCO → SFO Jun 4, 07:40 UTCJun 4, 19:55 UTC12h 15m
2026-06-03 ITY609 JFK → FCO Jun 3, 21:00 UTCJun 4, 04:25 UTC7h 25m
2026-06-03 ITY608 FCO → JFK Jun 3, 08:55 UTCJun 3, 17:55 UTC9h 0m
2026-06-02 ITY609 JFK → FCO Jun 2, 20:25 UTCJun 3, 03:45 UTC7h 20m
2026-06-02 ITY609 JFK → FCO Jun 2, 19:50 UTCJun 2, 20:00 UTC10m
2026-06-02 ITY608 FCO → JFK Jun 2, 08:50 UTCJun 2, 17:20 UTC8h 30m
2026-06-01 ITY673 GIG → FCO Jun 1, 23:00 UTCJun 2, 04:15 UTC5h 15m
2026-06-01 ITY673 GIG → FCO Jun 1, 17:50 UTCJun 1, 18:45 UTC55m
2026-05-31 ITY672 FCO → GIG May 31, 20:40 UTCJun 1, 08:10 UTC11h 30m
2026-05-30 ITY621 LAX → FCO May 30, 23:30 UTCMay 31, 11:30 UTC12h 0m
2026-05-30 ITY620 FCO → LAX May 30, 08:50 UTCMay 30, 21:05 UTC12h 15m
2026-05-29 RYR38LU NAP → DUB May 29, 23:40 UTCMay 29, 23:50 UTC10m
2026-05-28 ITY679 GRU → FCO May 28, 22:10 UTCMay 29, 09:10 UTC11h 0m
2026-05-28 ITY678 FCO → GRU May 28, 18:15 UTCMay 28, 19:45 UTC1h 30m
2026-05-28 RYR51YC LTN → DUB May 28, 16:50 UTCMay 28, 17:00 UTC10m
2026-05-28 ITY678 FCO → GRU May 28, 08:10 UTCMay 28, 13:40 UTC5h 30m
2026-05-27 ITY615 BOS → FCO May 27, 21:35 UTCMay 28, 05:10 UTC7h 35m
2026-05-27 ITY614 FCO → BOS May 27, 09:20 UTCMay 27, 17:25 UTC8h 5m
2026-05-26 ITY675 GRU → FCO May 26, 17:39 UTCMay 27, 04:24 UTC10h 45m
2026-05-25 ITY674 FCO → GRU May 25, 20:45 UTCMay 26, 08:24 UTC11h 40m
2026-05-25 ITY675 GRU → FCO May 25, 12:00 UTCMay 25, 15:10 UTC3h 10m
2026-05-25 ITY675 GRU → FCO May 25, 04:25 UTCMay 25, 10:35 UTC6h 10m
2026-05-24 ITY674 FCO → GRU May 24, 14:30 UTCMay 24, 20:00 UTC5h 30m
2026-05-23 ITY603 JFK → FCO May 23, 22:30 UTCMay 24, 06:25 UTC7h 55m
2026-05-23 ITY602 FCO → JFK May 23, 08:00 UTCMay 23, 16:45 UTC8h 45m
2026-05-22 ITY6KC JFK → FCO May 22, 03:10 UTCMay 22, 10:30 UTC7h 20m
2026-05-21 ITY610 FCO → JFK May 21, 14:50 UTCMay 21, 23:45 UTC8h 55m
2026-05-21 ITY6MO MIA → FCO May 21, 01:35 UTCMay 21, 11:00 UTC9h 25m
2026-05-20 ITY630 FCO → MIA May 20, 09:15 UTCMay 20, 23:20 UTC14h 5m
2026-05-19 ITY603 JFK → FCO May 19, 22:30 UTCMay 20, 06:10 UTC7h 41m
2026-05-19 ITY602 FCO → JFK May 19, 08:00 UTCMay 19, 16:50 UTC8h 50m
2026-05-18 ITY651 YYZ → FCO May 18, 21:25 UTCMay 19, 05:30 UTC8h 5m
2026-05-18 ITY650 FCO → YYZ May 18, 08:45 UTCMay 18, 17:35 UTC8h 50m
2026-05-17 ITY615 BOS → FCO May 17, 21:30 UTCMay 18, 04:51 UTC7h 20m
2026-05-17 ITY614 FCO → BOS May 17, 09:10 UTCMay 17, 18:01 UTC8h 50m
2026-05-16 ITY603 JFK → FCO May 16, 22:40 UTCMay 17, 06:25 UTC7h 45m
2026-05-16 ITY602 FCO → JFK May 16, 08:11 UTCMay 16, 17:05 UTC8h 55m
2026-05-15 ITY675 GRU → FCO May 15, 17:25 UTCMay 16, 03:50 UTC10h 25m
2026-05-14 ITY674 FCO → GRU May 14, 21:20 UTCMay 15, 09:15 UTC11h 55m
2026-05-13 ITY637 IAH → FCO May 13, 23:25 UTCMay 14, 09:40 UTC10h 15m
2026-05-13 ITY636 FCO → IAH May 13, 08:55 UTCMay 13, 20:35 UTC11h 40m
2026-05-12 ITY603 JFK → FCO May 12, 22:31 UTCMay 13, 06:25 UTC7h 55m
2026-05-12 ITY602 FCO → JFK May 12, 08:05 UTCMay 12, 16:50 UTC8h 45m
2026-05-11 ITY615 BOS → FCO May 11, 21:15 UTCMay 12, 04:40 UTC7h 25m
2026-05-11 ITY614 FCO → BOS May 11, 08:50 UTCMay 11, 17:15 UTC8h 26m
2026-05-10 ITY673 GIG → FCO May 10, 17:40 UTCMay 11, 03:45 UTC10h 5m

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

Mode-S 4CADFB frequently asked

What is Mode-S code 4CADFB?
4CADFB is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HPB.
Where is Mode-S 4CADFB registered?
Mode-S code 4CADFB is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADFB broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CADFB, octal 23126773, decimal 5,025,275.
What flights does 4CADFB operate?
Mode-S 4CADFB has broadcast 20 distinct callsigns, including ITY675, ITY673, ITY603, ITY602, ITY674.