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sensors Mode-S transponder

4CAC45

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-MAA · AIRBUS A-330-200

Hex
4CAC45
Octal
23126105
Decimal
5,024,837
Country
IE
Tail
EI-MAA
Type
A332
No current signal · last broadcast 10h ago
Flights observed
183
Distinct callsigns
20
Country
IE
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 4CAC45.

Country allocation

The ICAO 24-bit address 4CAC45 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
MAA3228 - 37 2026-07-04
MAA3114 - 32 2026-07-03
MAA3618 MasAir 21 2026-07-08
MAA3629 - 20 2026-07-09
MAA8361 MasAir 6 2026-06-01
MAA8723 - 4 2026-07-07
MAA8443 MasAir 4 2026-06-06
MAA6471 - 4 2026-06-30
MAA6412 MasAir 4 2026-06-30
MAA6333 - 4 2026-07-02
MAA8444 MasAir 3 2026-06-06
MAA8372 MasAir 3 2026-06-01
MAA6825 MasAir 3 2026-06-11
MAA6811 MasAir 3 2026-07-13
MAA6810 - 3 2026-07-13
MAA6710 MasAir 3 2026-07-12
MAA6344 MasAir 3 2026-07-02
MAA8861 - 2 2026-07-11
MAA8860 - 2 2026-07-10
MAA8750 - 2 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 MAA6811 LAX → GDL Jul 13, 14:45 UTCJul 13, 16:00 UTC1h 15m
2026-07-13 MAA6810 - Jul 13, 09:00 UTCJul 13, 11:55 UTC2h 55m
2026-07-12 MAA6710 NLU → BOG Jul 12, 15:20 UTCJul 13, 04:40 UTC13h 20m
2026-07-12 MAA6442 - Jul 12, 03:15 UTCJul 12, 12:40 UTC9h 25m
2026-07-11 MAA6441 NLU → VCP Jul 11, 17:40 UTCJul 11, 22:25 UTC4h 45m
2026-07-11 MAA6441 NLU → VCP Jul 11, 11:25 UTCJul 11, 15:25 UTC4h 0m
2026-07-11 MAA8861 - Jul 11, 03:10 UTCJul 11, 04:25 UTC1h 15m
2026-07-10 MAA8860 - Jul 10, 21:00 UTCJul 11, 00:10 UTC3h 10m
2026-07-10 MAA8750 - Jul 10, 10:20 UTCJul 10, 18:20 UTC8h 0m
2026-07-10 MAA8741 - Jul 10, 03:05 UTCJul 10, 07:45 UTC4h 40m
2026-07-09 MAA3629 - Jul 9, 16:25 UTCJul 9, 21:40 UTC5h 15m
2026-07-09 MAA3629 ICN → ANC Jul 9, 06:45 UTCJul 9, 14:35 UTC7h 50m
2026-07-09 MAA3629 - Jul 9, 04:40 UTCJul 9, 05:10 UTC30m
2026-07-08 MAA3618 LAX → HGH Jul 8, 09:30 UTCJul 8, 21:55 UTC12h 25m
2026-07-08 MAA3618 LAX → HGH Jul 8, 05:00 UTCJul 8, 06:15 UTC1h 15m
2026-07-08 MAA3618 LAX → HGH Jul 8, 03:00 UTCJul 8, 03:10 UTC10m
2026-07-07 MAA8724 UIO → LAX Jul 7, 16:35 UTCJul 8, 00:30 UTC7h 55m
2026-07-07 MAA8723 - Jul 7, 13:30 UTCJul 7, 13:40 UTC10m
2026-07-07 MAA8723 - Jul 7, 02:20 UTCJul 7, 08:05 UTC5h 45m
2026-07-07 MAA8723 - Jul 7, 00:20 UTCJul 7, 01:50 UTC1h 30m
2026-07-06 MAA6811 LAX → GDL Jul 6, 05:45 UTCJul 6, 07:00 UTC1h 15m
2026-07-06 MAA6810 - Jul 6, 00:10 UTCJul 6, 03:35 UTC3h 25m
2026-07-05 MAA6710 NLU → BOG Jul 5, 09:20 UTCJul 5, 21:50 UTC12h 30m
2026-07-04 MAA3228 - Jul 4, 21:10 UTCJul 5, 02:20 UTC5h 10m
2026-07-04 MAA3228 ICN → ANC Jul 4, 05:00 UTCJul 4, 18:25 UTC13h 25m
2026-07-03 MAA3114 - Jul 3, 13:30 UTCJul 4, 02:25 UTC12h 55m
2026-07-02 MAA3114 - Jul 2, 22:40 UTCJul 2, 23:25 UTC45m
2026-07-02 MAA3114 - Jul 2, 18:20 UTCJul 2, 20:15 UTC1h 55m
2026-07-02 MAA6344 BOG → NLU Jul 2, 04:10 UTCJul 2, 13:25 UTC9h 15m
2026-07-02 MAA6333 - Jul 2, 02:50 UTCJul 2, 04:05 UTC1h 15m
2026-07-01 MAA6813 LAX → MEX Jul 1, 10:05 UTCJul 1, 11:15 UTC1h 10m
2026-07-01 MAA6824 - Jul 1, 06:10 UTCJul 1, 07:40 UTC1h 30m
2026-07-01 MAA6824 - Jul 1, 04:20 UTCJul 1, 04:30 UTC10m
2026-06-30 MAA6412 VCP → NLU Jun 30, 13:15 UTCJul 1, 00:55 UTC11h 40m
2026-06-30 MAA6471 - Jun 30, 07:40 UTCJun 30, 10:35 UTC2h 55m
2026-06-29 MAA6471 NLU → SCL Jun 29, 21:34 UTCJun 29, 22:15 UTC40m
2026-06-27 MAA6851 - Jun 27, 21:40 UTCJun 27, 23:00 UTC1h 20m
2026-06-27 MAA6850 - Jun 27, 16:10 UTCJun 27, 19:19 UTC3h 10m
2026-06-27 MAA3228 - Jun 27, 05:49 UTCJun 27, 10:54 UTC5h 5m
2026-06-26 MAA3228 ICN → ANC Jun 26, 14:15 UTCJun 27, 03:34 UTC13h 20m
2026-06-25 MAA3114 - Jun 25, 22:20 UTCJun 26, 11:24 UTC13h 5m
2026-06-25 MAA3114 LAX → WUX Jun 25, 16:35 UTCJun 25, 19:54 UTC3h 20m
2026-06-22 MAA6811 LAX → GDL Jun 22, 09:04 UTCJun 22, 10:25 UTC1h 20m
2026-06-22 MAA6810 GDL → LAX Jun 22, 02:45 UTCJun 22, 06:00 UTC3h 15m
2026-06-21 MAA6710 NLU → BOG Jun 21, 11:55 UTCJun 21, 23:34 UTC11h 40m
2026-06-21 MAA3228 ANC → NLU Jun 21, 01:25 UTCJun 21, 06:29 UTC5h 5m
2026-06-20 MAA3228 ANC → NLU Jun 20, 15:04 UTCJun 20, 22:54 UTC7h 50m
2026-06-19 MAA3228 ANC → NLU Jun 19, 21:39 UTCJun 20, 16:34 UTC18h 55m
2026-06-19 MAA3114 LAX → WUX Jun 19, 07:19 UTCJun 19, 19:54 UTC12h 35m
2026-06-19 MAA3114 LAX → WUX Jun 19, 00:49 UTCJun 19, 04:04 UTC3h 15m

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

Mode-S 4CAC45 frequently asked

What is Mode-S code 4CAC45?
4CAC45 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-MAA.
Where is Mode-S 4CAC45 registered?
Mode-S code 4CAC45 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAC45 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAC45, octal 23126105, decimal 5,024,837.
What flights does 4CAC45 operate?
Mode-S 4CAC45 has broadcast 20 distinct callsigns, including MAA3228, MAA3114, MAA3618, MAA3629, MAA8361.