sensors Mode-S transponder
4CAFFB
ICAO 24-bit transponder address · allocated to Ireland
Currently assigned to EI-TYC · AIRBUS A-330-900
- Hex
- 4CAFFB
- Octal
- 23127773
- Decimal
- 5,025,787
- Country
- IE
- Tail
- EI-TYC
- Type
- A339
- Flights observed
- 96
- Distinct callsigns
- 20
- Country
- IE
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 4CAFFB 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 |
|---|---|---|---|
| ITY672 | ITA Airways | 8 | 2026-05-20 |
| ITY610 | ITA Airways | 8 | 2026-05-19 |
| ITY609 | ITA Airways | 7 | 2026-04-26 |
| ITY769 | ITA Airways | 6 | 2026-05-11 |
| ITY6KC | ITA Airways | 6 | 2026-05-20 |
| ITY641 | ITA Airways | 6 | 2026-05-17 |
| ITY770 | ITA Airways | 5 | 2026-05-11 |
| ITY608 | ITA Airways | 5 | 2026-04-26 |
| ITY6MO | ITA Airways | 4 | 2026-05-10 |
| ITY673 | ITA Airways | 4 | 2026-05-21 |
| ITY630 | ITA Airways | 4 | 2026-05-09 |
| ITY679 | ITA Airways | 3 | 2026-05-14 |
| ITY678 | ITA Airways | 3 | 2026-05-14 |
| ITY619 | ITA Airways | 3 | 2026-05-24 |
| ITY618 | ITA Airways | 3 | 2026-05-24 |
| ITY602 | ITA Airways | 3 | 2026-05-22 |
| ITY675 | ITA Airways | 2 | 2026-05-07 |
| ITY651 | ITA Airways | 2 | 2026-05-03 |
| ITY650 | ITA Airways | 2 | 2026-05-03 |
| ITY640 | ITA Airways | 2 | 2026-05-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-28 | ITY8006 | - | May 28, 13:35 UTC | May 28, 14:00 UTC | 25m |
| 2026-05-25 | ITY621 | LAX → FCO | May 25, 22:19 UTC | May 26, 10:20 UTC | 12h 0m |
| 2026-05-25 | ITY620 | FCO → LAX | May 25, 07:40 UTC | May 25, 20:15 UTC | 12h 34m |
| 2026-05-24 | ITY619 | IAD → FCO | May 24, 20:50 UTC | May 25, 05:25 UTC | 8h 35m |
| 2026-05-24 | ITY618 | FCO → IAD | May 24, 09:00 UTC | May 24, 18:05 UTC | 9h 5m |
| 2026-05-23 | ITY615 | BOS → FCO | May 23, 21:25 UTC | May 24, 04:55 UTC | 7h 30m |
| 2026-05-23 | ITY614 | FCO → BOS | May 23, 09:25 UTC | May 23, 17:45 UTC | 8h 20m |
| 2026-05-22 | ITY603 | JFK → FCO | May 22, 22:00 UTC | May 23, 05:30 UTC | 7h 29m |
| 2026-05-22 | ITY602 | FCO → JFK | May 22, 08:00 UTC | May 22, 16:50 UTC | 8h 50m |
| 2026-05-21 | ITY673 | GIG → FCO | May 21, 17:35 UTC | May 22, 04:05 UTC | 10h 30m |
| 2026-05-20 | ITY672 | FCO → GIG | May 20, 20:35 UTC | May 21, 07:50 UTC | 11h 15m |
| 2026-05-20 | ITY6KC | JFK → FCO | May 20, 02:25 UTC | May 20, 10:20 UTC | 7h 56m |
| 2026-05-19 | ITY610 | FCO → JFK | May 19, 13:35 UTC | May 19, 22:25 UTC | 8h 50m |
| 2026-05-19 | ITY6KC | JFK → FCO | May 19, 02:05 UTC | May 19, 09:45 UTC | 7h 40m |
| 2026-05-18 | ITY610 | FCO → JFK | May 18, 13:50 UTC | May 18, 22:35 UTC | 8h 44m |
| 2026-05-17 | ITY641 | SFO → FCO | May 17, 22:50 UTC | May 18, 10:10 UTC | 11h 20m |
| 2026-05-17 | ITY640 | FCO → SFO | May 17, 07:35 UTC | May 17, 19:40 UTC | 12h 5m |
| 2026-05-16 | ITY673 | GIG → FCO | May 16, 17:55 UTC | May 17, 03:40 UTC | 9h 45m |
| 2026-05-15 | ITY672 | FCO → GIG | May 15, 20:55 UTC | May 16, 08:36 UTC | 11h 41m |
| 2026-05-14 | ITY679 | GRU → FCO | May 14, 22:25 UTC | May 15, 08:55 UTC | 10h 30m |
| 2026-05-14 | ITY678 | FCO → GRU | May 14, 08:15 UTC | May 14, 20:15 UTC | 12h 0m |
| 2026-05-11 | ITY769 | DEL → FCO | May 11, 21:55 UTC | May 12, 06:05 UTC | 8h 10m |
| 2026-05-11 | ITY770 | FCO → DEL | May 11, 12:35 UTC | May 11, 19:35 UTC | 7h 1m |
| 2026-05-11 | ITY6KC | JFK → FCO | May 11, 01:45 UTC | May 11, 09:40 UTC | 7h 55m |
| 2026-05-10 | ITY610 | FCO → JFK | May 10, 14:00 UTC | May 10, 22:49 UTC | 8h 50m |
| 2026-05-10 | ITY6MO | MIA → FCO | May 10, 00:09 UTC | May 10, 09:35 UTC | 9h 25m |
| 2026-05-09 | ITY630 | FCO → MIA | May 9, 09:05 UTC | May 9, 19:49 UTC | 10h 45m |
| 2026-05-08 | ITY769 | DEL → FCO | May 8, 21:55 UTC | May 9, 06:10 UTC | 8h 15m |
| 2026-05-08 | ITY770 | FCO → DEL | May 8, 12:30 UTC | May 8, 19:35 UTC | 7h 5m |
| 2026-05-07 | ITY679 | GRU → FCO | May 7, 22:54 UTC | May 8, 09:39 UTC | 10h 45m |
| 2026-05-07 | ITY678 | FCO → GRU | May 7, 08:25 UTC | May 7, 20:30 UTC | 12h 5m |
| 2026-05-07 | ITY675 | GRU → FCO | May 7, 02:30 UTC | May 7, 04:00 UTC | 1h 30m |
| 2026-05-06 | ITY675 | GRU → FCO | May 6, 17:35 UTC | May 7, 00:05 UTC | 6h 30m |
| 2026-05-05 | ITY674 | FCO → GRU | May 5, 20:40 UTC | May 6, 08:50 UTC | 12h 10m |
| 2026-05-04 | ITY679 | GRU → FCO | May 4, 23:05 UTC | May 5, 09:30 UTC | 10h 25m |
| 2026-05-04 | ITY678 | FCO → GRU | May 4, 08:25 UTC | May 4, 20:40 UTC | 12h 16m |
| 2026-05-03 | ITY651 | YYZ → FCO | May 3, 21:20 UTC | May 4, 05:45 UTC | 8h 25m |
| 2026-05-03 | ITY650 | FCO → YYZ | May 3, 09:25 UTC | May 3, 18:14 UTC | 8h 50m |
| 2026-05-02 | ITY651 | YYZ → FCO | May 2, 21:25 UTC | May 3, 05:45 UTC | 8h 19m |
| 2026-05-02 | ITY650 | FCO → YYZ | May 2, 08:40 UTC | May 2, 17:35 UTC | 8h 55m |
| 2026-05-01 | ITY619 | IAD → FCO | May 1, 20:55 UTC | May 2, 05:20 UTC | 8h 25m |
| 2026-05-01 | ITY618 | FCO → IAD | May 1, 09:35 UTC | May 1, 18:35 UTC | 9h 0m |
| 2026-04-30 | ITY673 | GIG → FCO | Apr 30, 17:35 UTC | May 1, 04:05 UTC | 10h 30m |
| 2026-04-29 | ITY672 | FCO → GIG | Apr 29, 20:40 UTC | Apr 30, 08:15 UTC | 11h 34m |
| 2026-04-29 | ITY6KC | JFK → FCO | Apr 29, 01:30 UTC | Apr 29, 09:45 UTC | 8h 16m |
| 2026-04-28 | ITY610 | FCO → JFK | Apr 28, 13:50 UTC | Apr 28, 22:25 UTC | 8h 35m |
| 2026-04-27 | ITY621 | LAX → FCO | Apr 27, 23:45 UTC | Apr 28, 11:00 UTC | 11h 15m |
| 2026-04-27 | ITY620 | FCO → LAX | Apr 27, 08:55 UTC | Apr 27, 21:30 UTC | 12h 35m |
| 2026-04-26 | ITY609 | JFK → FCO | Apr 26, 20:35 UTC | Apr 27, 04:40 UTC | 8h 5m |
| 2026-04-26 | ITY608 | FCO → JFK | Apr 26, 09:00 UTC | Apr 26, 17:45 UTC | 8h 45m |
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-TYC page for operator, model, and routing details .